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March 25, 2023Severity Medium Analysis Summary GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its […]March 25, 2023Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]March 24, 2023Severity Medium Analysis Summary CVE-2023-20113 Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Platform
Managed Security Services
Managed Penetration Testing
Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
Resources
March 25, 2023Severity Medium Analysis Summary GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its […]March 25, 2023Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]March 24, 2023Severity Medium Analysis Summary CVE-2023-20113 Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Rewterz Threat Alert – Malspam Campaign Delivering Malicious Files Using Compromised Windstream Email Addresses
June 14, 2019Rewterz Threat Advisory – CVE-2019-1029 – Microsoft Lync Server 2010 / 2013 Denial of Service Vulnerability
June 14, 2019
Severity
Medium
Analysis Summary
A malspam email campaign that has emails with subject lines about love letters and had a zip attachment with a name starting with “Love_You_”. The zip file, when uncompressed, contained a JavaScript file that, upon execution, performed several HTTP requests to download additional malicious executables. These executables were a Monero cryptocurrency miner, Phorpiex spambot malware, and GandCrab ransomware. The Phorpiex spambot malware caused the victim host to be joined to a botnet and begin emailing out copies of the malicious zip file to additional targets. Meanwhile the victim host was infected with ransomware and leveraged to mine crypto-currency.
Impact
File encryption
Indicators of Compromise
IP(s) / Hostname(s)
- 92[.]63[.]197[.]48
- 198[.]105[.]244[.]228
- 78[.]46[.]77[.]98
- 217[.]26[.]53[.]161
- 74[.]220[.]215[.]73
- 136[.]243[.]13[.]215
- 138[.]201[.]162[.]99
URLs
- slpsrgpsrhojifdij[.]ru
- osheoufhusheoghuesd[.]ru
- suieiusiueiuiuushgf[.]ru
- www[.]2mmotorsport[.]biz
- www[.]haargenau[.]biz
- www[.]bizziniinfissi[.]com
- www[.]holzbock[.]biz
- www[.]fliptray[.]biz
- gandcrabmfe6mnef[.]onion
Malware Hash (MD5/SHA1/SH256)
- 72429571f4ca62fceb5a4fc0a17a8f8ab88c1ed01b9d657f7e9778c7939cea06
- 27ac0e9011294c2152d224052280f7fa434df572809a6f96f9a306f3d5c965e3
- 99a1e83e77850b59995cdf29b61e9f29f9c38882363027668030df0a62059645
- 06e61032bccfe0ccd51ddbab480e1eb6392bccb318639ecac0092e96b9d794ad
- 7818e108a16f096eb71feb564ce92095c4ac1e613933630169cc16606bb5f68d
- 0a27af16b991cbe0f5445022cb1d752a9144abeede6b8de0055247e6fd6c1698
- 32ee086fbc82ddd0675c0293656f813493ce6d96d02e0bcbeccee4d1a6adfb20
- 12e3038b2ed0663cba3c6a05ac0a27b61dce694dffc27aafb4cb3f2f229ff6b8
- 6ad3e68e2e8c5088bc8544bc230a2e333645d3c246ace772bf61f80cd0e93002
- 99fe714a365f8e4a74687592700b27f2016a59c7527b5d4ef7cfd97e63468349
- d189f44528dfa3f8dba2632ae26f564a37931cb89668d31402fc7fb05ae63c1a
- c3683096f91b00dfe248e388b4302d5471fb090ab8092c96c991a467c26f26b0
- f3c369edc2ea96465c49a14f64bdce83c0a401e0ae12e809bced8f99b977c5dc
- f4d3ba58e91dc95877ba13804df6fe307ef6efcef74d3a00792387625a624cf4
- 9ff78056e225c08ef1f1ff71f305201387f3ec766c8727361851287a74de1f45
- ba23af4480611fb19fad2cd83a41bd347d183e0ef8e1c5477916bebe32955d87
- cf9a20874089ec7aa1a84a27f74928c71266a684e7fee4c1ac8d37aaf57d6bf2
- 0de30f9dbe37aea5932e5df85b4f1aa5cefe28f3bffb58d4d8ae40ccd040a4a7
- 4c0103c745fa6e173821035c304863d751bea9c073d19070d9ebf8685da95040
- 056b7eb0c06645e1f51ed77f4fa18a4bed47135108371a84f0482f141ae0d769
- 035ae8f389e0a4cb58428d892123bc3e3b646e4387c641e664c5552228087285
- b8bf5b607b305139db81c48e96010a67768488b01edc8c615306ed303c545b0d
- 4b9d5841d38b8658466dcaf409c34c0f6d2d1f9ecb64254391a4621465daf79b
Remediation
- Block all threat indicators at your respective controls.
- Always be suspicious about emails sent by unknown senders.
- Never click on the link/attachments sent by unknown senders.