General
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Target
5350d84876668885a80cd528627f5c982f9e0325b9fd56f8737f3bcc74326444
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Size
258KB
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Sample
230331-1dy1xsdf39
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MD5
9845f491a2e160211325d9887ed38fc4
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SHA1
f9a1f8b4a13019510a313813fde3d5ab0a4f5d25
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SHA256
5350d84876668885a80cd528627f5c982f9e0325b9fd56f8737f3bcc74326444
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SHA512
515c00a234010214451781faa7e8c1a887da12763fad97c2ff6d6b0ca0174b15ede13596ffa702b64955646a1760df61452b9d0756cb3cd4aac823e56938b0ac
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SSDEEP
3072:AgytBUJdTGWQ5YhA0m4jnkLqc/JYZzkM/8OMJW5cR0Bu2A:f/XQ5YC0HjkLqc/QdM1R0/A
Static task
static1
Behavioral task
behavioral1
Sample
5350d84876668885a80cd528627f5c982f9e0325b9fd56f8737f3bcc74326444.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/
Extracted
djvu
http://zexeq.com/test2/get.php
http://zexeq.com/lancer/get.php
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extension
.nifr
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offline_id
FCP2fiITr4rryFhFBnA59GMgwES5CunmcbPc76t1
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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
smokeloader
pub1
Extracted
amadey
3.65
77.73.134.27/8bmdh3Slb2/index.php
Extracted
vidar
3.2
5df88deb5dde677ba658b77ad5f60248
https://steamcommunity.com/profiles/76561199489580435
https://t.me/tabootalks
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profile_id_v2
5df88deb5dde677ba658b77ad5f60248
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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
5350d84876668885a80cd528627f5c982f9e0325b9fd56f8737f3bcc74326444
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Size
258KB
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MD5
9845f491a2e160211325d9887ed38fc4
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SHA1
f9a1f8b4a13019510a313813fde3d5ab0a4f5d25
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SHA256
5350d84876668885a80cd528627f5c982f9e0325b9fd56f8737f3bcc74326444
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SHA512
515c00a234010214451781faa7e8c1a887da12763fad97c2ff6d6b0ca0174b15ede13596ffa702b64955646a1760df61452b9d0756cb3cd4aac823e56938b0ac
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SSDEEP
3072:AgytBUJdTGWQ5YhA0m4jnkLqc/JYZzkM/8OMJW5cR0Bu2A:f/XQ5YC0HjkLqc/QdM1R0/A
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Detected Djvu ransomware
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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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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 v6
Persistence
Modify Existing Service
1Registry Run Keys / Startup Folder
1Scheduled Task
1Defense Evasion
File and Directory Permissions Modification
1Impair Defenses
1Modify Registry
1