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General
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Target
NEAS.661451a475de51170424dd742e46af00_JC.exe
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Size
680KB
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Sample
231102-z3mhrafg8s
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MD5
661451a475de51170424dd742e46af00
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SHA1
7d536fec1ed9ce0b28efb48c6886c29d0e7aa00d
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SHA256
a3e5c424a615e00436c18e4836d80f940bbd748f8163a5c32562fdef933044ef
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SHA512
b8bed8360c7d3db88a37b6c4adf25d557f2711206504e800694ad313c2fbe331a501eaeaeb11cf47224732614098d40b52e6bd42094c5d50158db9948ef1125a
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SSDEEP
12288:rMs3VobqtOpXzd/vMhbxPynTOkOpkW/j/D5Tgq01E60StKdkGgk5aza7hEPkM:rMANkVRsHPy+R/zxIu++gkMza7h4kM
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.661451a475de51170424dd742e46af00_JC.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
NEAS.661451a475de51170424dd742e46af00_JC.exe
Resource
win10v2004-20231020-en
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.zpas
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offline_id
OnB5BCsUkG8OhWvHL3Y0tNlfgHqdMG4puQsBzvt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Targets
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Target
NEAS.661451a475de51170424dd742e46af00_JC.exe
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Size
680KB
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MD5
661451a475de51170424dd742e46af00
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SHA1
7d536fec1ed9ce0b28efb48c6886c29d0e7aa00d
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SHA256
a3e5c424a615e00436c18e4836d80f940bbd748f8163a5c32562fdef933044ef
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SHA512
b8bed8360c7d3db88a37b6c4adf25d557f2711206504e800694ad313c2fbe331a501eaeaeb11cf47224732614098d40b52e6bd42094c5d50158db9948ef1125a
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SSDEEP
12288:rMs3VobqtOpXzd/vMhbxPynTOkOpkW/j/D5Tgq01E60StKdkGgk5aza7hEPkM:rMANkVRsHPy+R/zxIu++gkMza7h4kM
Score10/10-
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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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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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