General
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Target
fcff9a6bedb4de464eb838d2b1d9fed9626e7b890936e41a2c8acf28b0620458
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Size
729KB
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Sample
221011-j81pkaeahj
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MD5
0cb4753490c6383c0005aa3c025d16c7
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SHA1
7fd69a77ece673870edff6d18cc49efedadaf366
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SHA256
fcff9a6bedb4de464eb838d2b1d9fed9626e7b890936e41a2c8acf28b0620458
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SHA512
d0f3591580ae56125b5ae8c52581fab6afad411148eb445b6859a5fe08cc120908926fe17d955d0e4e2daa1f01f4092f4b25993286630ebe521dc911d1fba0ce
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SSDEEP
12288:VjSu0oIVWdypxDamvdVjR7PIt7NJwpTeL2hGTSYQ8XryeVkrnByvhAs5br3o3Dcp:VjXIcypxD7Z7aAp6L2hGWubymCnGCs57
Static task
static1
Behavioral task
behavioral1
Sample
fcff9a6bedb4de464eb838d2b1d9fed9626e7b890936e41a2c8acf28b0620458.exe
Resource
win10-20220812-en
Malware Config
Extracted
djvu
http://winnlinne.com/test1/get.php
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extension
.tohj
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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
fcff9a6bedb4de464eb838d2b1d9fed9626e7b890936e41a2c8acf28b0620458
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Size
729KB
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MD5
0cb4753490c6383c0005aa3c025d16c7
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SHA1
7fd69a77ece673870edff6d18cc49efedadaf366
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SHA256
fcff9a6bedb4de464eb838d2b1d9fed9626e7b890936e41a2c8acf28b0620458
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SHA512
d0f3591580ae56125b5ae8c52581fab6afad411148eb445b6859a5fe08cc120908926fe17d955d0e4e2daa1f01f4092f4b25993286630ebe521dc911d1fba0ce
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SSDEEP
12288:VjSu0oIVWdypxDamvdVjR7PIt7NJwpTeL2hGTSYQ8XryeVkrnByvhAs5br3o3Dcp:VjXIcypxD7Z7aAp6L2hGWubymCnGCs57
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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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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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