General
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Target
15678912e8711440cd89fed63ef9d25ce4432d44fc5396b046a8c56c29fd507a
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Size
665KB
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Sample
240128-17v65abce8
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MD5
701c957614453de550805b9bacbd65c5
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SHA1
f271eef4ffb76076e87f95af54dfab52ec4c15d3
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SHA256
15678912e8711440cd89fed63ef9d25ce4432d44fc5396b046a8c56c29fd507a
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SHA512
8b58dddde3e2594a4102d0b352b3cec6840b996eb40d9b7cf8cbbc2d8a384e483bc8f7a9e0180a8de6aeef633775daa69719fa095521965afd9470fe223e45f3
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SSDEEP
12288:uPR2zfywc6e6ZZvRLpvNu1vyeWuksrxNGFdA/nQTugvGmxl:uozfyRApx81vyDqrxNiZemxl
Static task
static1
Behavioral task
behavioral1
Sample
15678912e8711440cd89fed63ef9d25ce4432d44fc5396b046a8c56c29fd507a.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
15678912e8711440cd89fed63ef9d25ce4432d44fc5396b046a8c56c29fd507a.exe
Resource
win10-20231215-en
Malware Config
Extracted
djvu
http://habrafa.com/test1/get.php
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extension
.cdcc
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offline_id
LBxKKiegnAy53rpqH3Pj2j46vwldiEt9kqHSuMt1
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payload_url
http://brusuax.com/dl/build2.exe
http://habrafa.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
7.5
e7447dc405edc4690f5920bdb056364f
https://t.me/bogotatg
https://steamcommunity.com/profiles/76561199621829149
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profile_id_v2
e7447dc405edc4690f5920bdb056364f
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_3) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7
Targets
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Target
15678912e8711440cd89fed63ef9d25ce4432d44fc5396b046a8c56c29fd507a
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Size
665KB
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MD5
701c957614453de550805b9bacbd65c5
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SHA1
f271eef4ffb76076e87f95af54dfab52ec4c15d3
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SHA256
15678912e8711440cd89fed63ef9d25ce4432d44fc5396b046a8c56c29fd507a
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SHA512
8b58dddde3e2594a4102d0b352b3cec6840b996eb40d9b7cf8cbbc2d8a384e483bc8f7a9e0180a8de6aeef633775daa69719fa095521965afd9470fe223e45f3
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SSDEEP
12288:uPR2zfywc6e6ZZvRLpvNu1vyeWuksrxNGFdA/nQTugvGmxl:uozfyRApx81vyDqrxNiZemxl
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Detect Vidar Stealer
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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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Adds Run key to start application
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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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1