General
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Target
03683799.exe
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Size
799KB
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Sample
230618-m18lzsfh6t
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MD5
002a7e2b0d94d2dde8cf0a8922c40b46
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SHA1
c72d97df09b2f2ca3786c456ed513767668837d6
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SHA256
5f0a3120ede0d514ad5201434c2761d03304321198b97c61b6cefd0364b459e2
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SHA512
48eaa90b1cfb52f9869efbd6770d0bcb46701a10bedcbf1543160db619033a142eddb1f0fdec449c75526efffee620fb649e42eb0cefcab3dd3c81e43553654b
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SSDEEP
12288:t3Ms7UqXhs/+Lt8MR2yOjgsKwHEvzTfKq1m5lYjfQosfbxrHGaYPL:tcodXPFTOEcEvfYQ0W
Static task
static1
Behavioral task
behavioral1
Sample
03683799.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
03683799.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.ahui
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offline_id
vPWUuYIO6Lzy2cGt8zL7FERKTf4QMBPjn7F005t1
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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
vidar
4.3
a129a8292a021d62796bfced1018aa1f
https://steamcommunity.com/profiles/76561199514261168
https://t.me/kamaprimo
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profile_id_v2
a129a8292a021d62796bfced1018aa1f
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user_agent
Mozilla/5.0 (Linux; U; Tizen 2.0; en-us) AppleWebKit/537.1 (KHTML, like Gecko) Mobile TizenBrowser/2.0
Targets
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Target
03683799.exe
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Size
799KB
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MD5
002a7e2b0d94d2dde8cf0a8922c40b46
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SHA1
c72d97df09b2f2ca3786c456ed513767668837d6
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SHA256
5f0a3120ede0d514ad5201434c2761d03304321198b97c61b6cefd0364b459e2
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SHA512
48eaa90b1cfb52f9869efbd6770d0bcb46701a10bedcbf1543160db619033a142eddb1f0fdec449c75526efffee620fb649e42eb0cefcab3dd3c81e43553654b
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SSDEEP
12288:t3Ms7UqXhs/+Lt8MR2yOjgsKwHEvzTfKq1m5lYjfQosfbxrHGaYPL:tcodXPFTOEcEvfYQ0W
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Detected Djvu ransomware
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Downloads MZ/PE file
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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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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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