General
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Target
42e12adbdd7c229acdc69f19301f64842781beca028547341505caa1360c1746
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Size
715KB
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Sample
230217-j36nmaea4x
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MD5
df741f637e27047a000e15ae0b96fed2
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SHA1
51322cdc2edcdefab8c1f7ce93bb9dde6a275007
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SHA256
42e12adbdd7c229acdc69f19301f64842781beca028547341505caa1360c1746
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SHA512
3f2ba8896eedd13923819dc827ce53b7f6d80624e20c6078079c06ad3c0354d2f493f60e28cb3befaf7278431ffe2860cb17b9ccb50576be1e53e0659d0398fa
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SSDEEP
12288:sB4RqQLB9vMdbGJYuxIaMCExRb1Q4QIxeleEqPBBfDA6fqzaEY9lyVMpJ:sBwTk6Gux4N1QIWeBfD9fq+NQmJ
Static task
static1
Behavioral task
behavioral1
Sample
42e12adbdd7c229acdc69f19301f64842781beca028547341505caa1360c1746.exe
Resource
win10-20220812-en
Malware Config
Extracted
djvu
http://bihsy.com/test1/get.php
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extension
.hhmm
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offline_id
dMMXkgwQTycP13C5xwPbHDSzhx1ZxiPgIMZXewt1
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payload_url
http://uaery.top/dl/build2.exe
http://bihsy.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
2.5
19
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profile_id
19
Targets
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Target
42e12adbdd7c229acdc69f19301f64842781beca028547341505caa1360c1746
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Size
715KB
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MD5
df741f637e27047a000e15ae0b96fed2
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SHA1
51322cdc2edcdefab8c1f7ce93bb9dde6a275007
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SHA256
42e12adbdd7c229acdc69f19301f64842781beca028547341505caa1360c1746
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SHA512
3f2ba8896eedd13923819dc827ce53b7f6d80624e20c6078079c06ad3c0354d2f493f60e28cb3befaf7278431ffe2860cb17b9ccb50576be1e53e0659d0398fa
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SSDEEP
12288:sB4RqQLB9vMdbGJYuxIaMCExRb1Q4QIxeleEqPBBfDA6fqzaEY9lyVMpJ:sBwTk6Gux4N1QIWeBfD9fq+NQmJ
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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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