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General
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Target
55cfb8de29960161a96abd8fa.exe
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Size
752KB
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Sample
230709-m5373ace66
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MD5
a1166c17c91bcb4de729365c3f58f1d5
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SHA1
0da62ba24c9a85e5787b28d8f43f817e7d804231
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SHA256
55cfb8de29960161a96abd8fa86ef7353957a3fd220a4cd6f867179192c773b0
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SHA512
f5f1b3eb9100e7670cec60d0c21ba946342d7dd052c7eea4bf0b45c6fb8d0562a9cb827747fc0b7eefbfa1a27131bd7cd69cc7455ce308ab8cecfbd50b1f37b2
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SSDEEP
12288:9Ax6Umh0GT8y9lp9LZuD7Y8JUlmtWI14YexoJkwjrWU6MfCb58hJ+T:7Uw0H0TufY5GWI14YWpwt6MfQYAT
Static task
static1
Behavioral task
behavioral1
Sample
55cfb8de29960161a96abd8fa.exe
Resource
win7-20230705-en
Behavioral task
behavioral2
Sample
55cfb8de29960161a96abd8fa.exe
Resource
win10v2004-20230703-en
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.wazp
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offline_id
V5TMuF1BBuDZFeJXDU5xmjrzp6rwS1IuZWNpDCt1
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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
4.6
dcad9d884915bbb6106f78e5e2ea6168
https://steamcommunity.com/profiles/76561199523054520
https://t.me/game4serv
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profile_id_v2
dcad9d884915bbb6106f78e5e2ea6168
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:103.0) Gecko/20100101 Firefox/103.0
Targets
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Target
55cfb8de29960161a96abd8fa.exe
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Size
752KB
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MD5
a1166c17c91bcb4de729365c3f58f1d5
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SHA1
0da62ba24c9a85e5787b28d8f43f817e7d804231
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SHA256
55cfb8de29960161a96abd8fa86ef7353957a3fd220a4cd6f867179192c773b0
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SHA512
f5f1b3eb9100e7670cec60d0c21ba946342d7dd052c7eea4bf0b45c6fb8d0562a9cb827747fc0b7eefbfa1a27131bd7cd69cc7455ce308ab8cecfbd50b1f37b2
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SSDEEP
12288:9Ax6Umh0GT8y9lp9LZuD7Y8JUlmtWI14YexoJkwjrWU6MfCb58hJ+T:7Uw0H0TufY5GWI14YWpwt6MfQYAT
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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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