General
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Target
1c8c5b1541162218b3a0a6be555beb9b89a4ccb62a6da752156a49b49684e3bc
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Size
765KB
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Sample
230327-1j3w3ahd5x
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MD5
d50ec5de7eb66a90d16cf0b2fafd7c28
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SHA1
9d3c577b45e1a398050d483dee36f6e98a7d2255
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SHA256
1c8c5b1541162218b3a0a6be555beb9b89a4ccb62a6da752156a49b49684e3bc
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SHA512
723b936e46fc2973f82de1216eab657638ce4dabe41cc0ff75b5a6d665e962afa7a0ae9facd3a07aeedb341445f99f7cd0f15131b92f925d508ff5bd22b00de0
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SSDEEP
12288:UNBgVotGzNU6m7oUcHh71kFS20AwKL6xuFClGNypqNo2uRgTTvgrEf:UNBB4zK6m5cHhZl/AwKYuslshXuRJEf
Static task
static1
Behavioral task
behavioral1
Sample
1c8c5b1541162218b3a0a6be555beb9b89a4ccb62a6da752156a49b49684e3bc.exe
Resource
win10-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.jyos
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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
1c8c5b1541162218b3a0a6be555beb9b89a4ccb62a6da752156a49b49684e3bc
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Size
765KB
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MD5
d50ec5de7eb66a90d16cf0b2fafd7c28
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SHA1
9d3c577b45e1a398050d483dee36f6e98a7d2255
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SHA256
1c8c5b1541162218b3a0a6be555beb9b89a4ccb62a6da752156a49b49684e3bc
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SHA512
723b936e46fc2973f82de1216eab657638ce4dabe41cc0ff75b5a6d665e962afa7a0ae9facd3a07aeedb341445f99f7cd0f15131b92f925d508ff5bd22b00de0
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SSDEEP
12288:UNBgVotGzNU6m7oUcHh71kFS20AwKL6xuFClGNypqNo2uRgTTvgrEf:UNBB4zK6m5cHhZl/AwKYuslshXuRJEf
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Detected Djvu ransomware
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Downloads MZ/PE file
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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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