General
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Target
59dfb3311a97c0424430681e17f1b0e6c406894fe88aaa3676dee3fc88be69ac
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Size
729KB
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Sample
221011-j2hv6sddf2
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MD5
d8eaa6a4796ba5b2bb8ecaa2f9ce3999
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SHA1
0cf6a0cc77e2a73eeef82fc434368e9dbea9836d
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SHA256
59dfb3311a97c0424430681e17f1b0e6c406894fe88aaa3676dee3fc88be69ac
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SHA512
77e0b820d4099e0f35cfb2775140d17473475ba38a844e761b16da89b6ba8e2fbb6453cafd5b352c57916c8570f785020fe423716ddc19c58fd18a38553e79f4
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SSDEEP
12288:AT2CXd83Q6vJ8MJ45nk7Dotw9dSAvdwppq4C+9B345pB5psY1oKAGX/+:ATNL6R5Jmgotw9dSAqzCa3457sVKAGXG
Static task
static1
Behavioral task
behavioral1
Sample
59dfb3311a97c0424430681e17f1b0e6c406894fe88aaa3676dee3fc88be69ac.exe
Resource
win10v2004-20220901-en
Malware Config
Extracted
djvu
http://winnlinne.com/lancer/get.php
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extension
.towz
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offline_id
SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1
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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
59dfb3311a97c0424430681e17f1b0e6c406894fe88aaa3676dee3fc88be69ac
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Size
729KB
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MD5
d8eaa6a4796ba5b2bb8ecaa2f9ce3999
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SHA1
0cf6a0cc77e2a73eeef82fc434368e9dbea9836d
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SHA256
59dfb3311a97c0424430681e17f1b0e6c406894fe88aaa3676dee3fc88be69ac
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SHA512
77e0b820d4099e0f35cfb2775140d17473475ba38a844e761b16da89b6ba8e2fbb6453cafd5b352c57916c8570f785020fe423716ddc19c58fd18a38553e79f4
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SSDEEP
12288:AT2CXd83Q6vJ8MJ45nk7Dotw9dSAvdwppq4C+9B345pB5psY1oKAGX/+:ATNL6R5Jmgotw9dSAqzCa3457sVKAGXG
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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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