General
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Target
5cc0c50aa6e30d5d5d5c7f98c2ab671e8dbfae5026a997e25456eeeabbbeb44c
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Size
779KB
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Sample
230328-jyrnxabe51
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MD5
15aa5916560e056898a0b6b1d0675902
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SHA1
bbd0e33ba2eabfd63b4c25282d3aef45d05abf1f
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SHA256
5cc0c50aa6e30d5d5d5c7f98c2ab671e8dbfae5026a997e25456eeeabbbeb44c
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SHA512
6e6fa58ed4c93f751e188b48b02d6924e0d4fed9f5fd35ae58124e16fa9338f4f3cdc7c4b635b1dfe920c1fdd6bbe4a101ecafbbfc51f8c74ba34e8b64ac0bbe
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SSDEEP
12288:B+2Ew5sPdfKpRpBsl45PCo/SK7dGLDhrHkMmk+HnjG6Qc8mUQaLQ:VpuPdfaEkPCokDhrHkrhUQaL
Static task
static1
Behavioral task
behavioral1
Sample
5cc0c50aa6e30d5d5d5c7f98c2ab671e8dbfae5026a997e25456eeeabbbeb44c.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/test2/get.php
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extension
.jywd
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offline_id
MEMHlobHgXqvmTWaMsLcwGZhDOd00bblO1yevst1
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payload_url
http://uaery.top/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
3.1
00d92484c9b27bc8482a2cc94cacc508
https://steamcommunity.com/profiles/76561199472266392
https://t.me/tabootalks
http://135.181.26.183:80
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profile_id_v2
00d92484c9b27bc8482a2cc94cacc508
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user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79
Targets
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Target
5cc0c50aa6e30d5d5d5c7f98c2ab671e8dbfae5026a997e25456eeeabbbeb44c
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Size
779KB
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MD5
15aa5916560e056898a0b6b1d0675902
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SHA1
bbd0e33ba2eabfd63b4c25282d3aef45d05abf1f
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SHA256
5cc0c50aa6e30d5d5d5c7f98c2ab671e8dbfae5026a997e25456eeeabbbeb44c
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SHA512
6e6fa58ed4c93f751e188b48b02d6924e0d4fed9f5fd35ae58124e16fa9338f4f3cdc7c4b635b1dfe920c1fdd6bbe4a101ecafbbfc51f8c74ba34e8b64ac0bbe
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SSDEEP
12288:B+2Ew5sPdfKpRpBsl45PCo/SK7dGLDhrHkMmk+HnjG6Qc8mUQaLQ:VpuPdfaEkPCokDhrHkrhUQaL
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Detected Djvu ransomware
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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