General
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Target
file.exe
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Size
146KB
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Sample
221006-elsyzsgefq
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MD5
cd04692eb2df69eb2b87a56de3ca6c6d
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SHA1
b23728ed4296bbb9d77050e61049619a6411226f
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SHA256
4f2ec334a4a758a956936489082423b03d7053d4026705fb325447ef857c3557
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SHA512
7a145fcd614e0e4ed013fc38663ba55a98983200ef84ec29e6f78a8b71da0e8528e7612e22e70d302f2bc6d543a1ea9a6f1f4c9da8d57be56d0e28393fafa58f
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SSDEEP
3072:Jf5LUshfGmDQVNJ/39wUgn8KBpWw7FesBbO:pWouz/390n8KrFesl
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220901-en
Malware Config
Extracted
djvu
http://winnlinne.com/lancer/get.php
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extension
.adww
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offline_id
z8lhl4oForVEc7gy9Ra8rSqjYMl3xiFRuIW4not1
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payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
54.9
517
https://t.me/larsenup
https://ioc.exchange/@zebra54
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profile_id
517
Targets
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Target
file.exe
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Size
146KB
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MD5
cd04692eb2df69eb2b87a56de3ca6c6d
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SHA1
b23728ed4296bbb9d77050e61049619a6411226f
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SHA256
4f2ec334a4a758a956936489082423b03d7053d4026705fb325447ef857c3557
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SHA512
7a145fcd614e0e4ed013fc38663ba55a98983200ef84ec29e6f78a8b71da0e8528e7612e22e70d302f2bc6d543a1ea9a6f1f4c9da8d57be56d0e28393fafa58f
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SSDEEP
3072:Jf5LUshfGmDQVNJ/39wUgn8KBpWw7FesBbO:pWouz/390n8KrFesl
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Detected Djvu ransomware
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Detects Smokeloader packer
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Downloads MZ/PE file
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Executes dropped EXE
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Loads dropped DLL
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Modifies file permissions
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Accesses Microsoft Outlook profiles
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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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Suspicious use of SetThreadContext
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