General
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Target
a4099bbf1b3eb9a62df4f69302e9a84ace8c6b235d9fa3fb2fb9246d7ffa89aa
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Size
810KB
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Sample
230106-nvvcvafh57
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MD5
5c24f6f6c86564db7ea71bf01ec5dbc5
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SHA1
e0c5ac9895ba2621bb3ad63a3740d678d137dc59
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SHA256
a4099bbf1b3eb9a62df4f69302e9a84ace8c6b235d9fa3fb2fb9246d7ffa89aa
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SHA512
ce5c79e5b08087a13847c89ee5f372467f107eb0c376a07586be63ea2e052708aeddc21e3b16125d035351314c6b8fd9fc6038debd3a06d0be5268174159161e
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SSDEEP
24576:tchjW+rO8u7tR6RB8YtcfIE/zraQ4/cXmbv1:tchaKONbAadIICQ4/Ambv1
Static task
static1
Behavioral task
behavioral1
Sample
a4099bbf1b3eb9a62df4f69302e9a84ace8c6b235d9fa3fb2fb9246d7ffa89aa.exe
Resource
win10v2004-20220812-en
Malware Config
Extracted
djvu
http://spaceris.com/test1/get.php
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extension
.bpsm
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offline_id
pu5TgkFNAS5fWQ2rCzdamsmMrE5wSlTupdTI0pt1
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payload_url
http://uaery.top/dl/build2.exe
http://spaceris.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
1.8
19
https://t.me/year2023start
https://steamcommunity.com/profiles/76561199467421923
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profile_id
19
Targets
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Target
a4099bbf1b3eb9a62df4f69302e9a84ace8c6b235d9fa3fb2fb9246d7ffa89aa
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Size
810KB
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MD5
5c24f6f6c86564db7ea71bf01ec5dbc5
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SHA1
e0c5ac9895ba2621bb3ad63a3740d678d137dc59
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SHA256
a4099bbf1b3eb9a62df4f69302e9a84ace8c6b235d9fa3fb2fb9246d7ffa89aa
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SHA512
ce5c79e5b08087a13847c89ee5f372467f107eb0c376a07586be63ea2e052708aeddc21e3b16125d035351314c6b8fd9fc6038debd3a06d0be5268174159161e
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SSDEEP
24576:tchjW+rO8u7tR6RB8YtcfIE/zraQ4/cXmbv1:tchaKONbAadIICQ4/Ambv1
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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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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 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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