General
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Target
558b5bdfe0b41577bba78b413fcff5b07e870177b48daf3a3a8d2c6f217078a3
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Size
215KB
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Sample
230425-s2555sbb68
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MD5
fd5168a3d3adb20b0eedfd5f43ee3626
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SHA1
d0afe4c21b84f95df3ab25b832d8066c4f4974cb
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SHA256
558b5bdfe0b41577bba78b413fcff5b07e870177b48daf3a3a8d2c6f217078a3
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SHA512
e34f2b533abb41081c9b85196ed546ed5f3d6e407bb990b95078489cb3c5954da4fbb174f97421aedaea8fc63a52a7fcd7a4b6b3b73b70f7968dad37398aa249
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SSDEEP
3072:CRoYA8XY2xLrvac9UjAYzS4Ad6RO5iAUwed:mAc7sjAGxAdgAUwed
Static task
static1
Behavioral task
behavioral1
Sample
558b5bdfe0b41577bba78b413fcff5b07e870177b48daf3a3a8d2c6f217078a3.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
smokeloader
2022
http://potunulit.org/
http://hutnilior.net/
http://bulimu55t.net/
http://soryytlic4.net/
http://novanosa5org.org/
http://nuljjjnuli.org/
http://tolilolihul.net/
http://somatoka51hub.net/
http://hujukui3.net/
http://bukubuka1.net/
http://golilopaster.org/
http://newzelannd66.org/
http://otriluyttn.org/
http://aapu.at/tmp/
http://poudineh.com/tmp/
http://firsttrusteedrx.ru/tmp/
http://kingpirate.ru/tmp/
http://hoh0aeghwugh2gie.com/
http://hie7doodohpae4na.com/
http://aek0aicifaloh1yo.com/
http://yic0oosaeiy7ahng.com/
http://wa5zu7sekai8xeih.com/
Extracted
vidar
3.6
6908ab4fa5f20120a1d1ab0aab96b784
https://steamcommunity.com/profiles/76561199499188534
https://t.me/nutalse
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profile_id_v2
6908ab4fa5f20120a1d1ab0aab96b784
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user_agent
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
Extracted
smokeloader
pub1
Extracted
amadey
3.70
77.73.134.27/n9kdjc3xSf/index.php
Extracted
djvu
http://zexeq.com/lancer/get.php
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extension
.foty
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offline_id
JFtdCcJoPS9sBORc6lnQV44QG764HrKKynxqdVt1
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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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Extracted
smokeloader
sprg
Extracted
vidar
3.6
5cb879265de0011bfc7588d5d251aee6
https://steamcommunity.com/profiles/76561199499188534
https://t.me/nutalse
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profile_id_v2
5cb879265de0011bfc7588d5d251aee6
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user_agent
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
Extracted
vidar
3.6
acfe5a66e11e3bf64369ac07af193354
https://steamcommunity.com/profiles/76561199499188534
https://t.me/nutalse
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profile_id_v2
acfe5a66e11e3bf64369ac07af193354
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user_agent
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
Targets
-
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Target
558b5bdfe0b41577bba78b413fcff5b07e870177b48daf3a3a8d2c6f217078a3
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Size
215KB
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MD5
fd5168a3d3adb20b0eedfd5f43ee3626
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SHA1
d0afe4c21b84f95df3ab25b832d8066c4f4974cb
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SHA256
558b5bdfe0b41577bba78b413fcff5b07e870177b48daf3a3a8d2c6f217078a3
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SHA512
e34f2b533abb41081c9b85196ed546ed5f3d6e407bb990b95078489cb3c5954da4fbb174f97421aedaea8fc63a52a7fcd7a4b6b3b73b70f7968dad37398aa249
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SSDEEP
3072:CRoYA8XY2xLrvac9UjAYzS4Ad6RO5iAUwed:mAc7sjAGxAdgAUwed
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Detected Djvu ransomware
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Modifies security service
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Blocklisted process makes network request
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Downloads MZ/PE file
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Stops running service(s)
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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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Uses the VBS compiler for execution
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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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Legitimate hosting services abused for malware hosting/C2
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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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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v6
Persistence
Modify Existing Service
2Registry Run Keys / Startup Folder
1Scheduled Task
1Defense Evasion
File and Directory Permissions Modification
1Impair Defenses
1Modify Registry
2Scripting
1Web Service
1