General
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Target
a81c1b508619db121b034f4f23db8de10da54c115118666fc3f95f2b83b28b67
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Size
716KB
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Sample
230819-nn2hkshd68
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MD5
7eb91e6d5171e43544c3ea208e8aabdd
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SHA1
fd11c286d1f2e02ffaa7fd7a50e02e27102c717c
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SHA256
a81c1b508619db121b034f4f23db8de10da54c115118666fc3f95f2b83b28b67
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SHA512
317e5ec726ce6450ad637f79c8b5917f599a75da2d8013a71a4a3165cf4c475e9cfa1c3bedfa975fa72f3e781d155c3725ad27ad5836c79e36c23ff11d79b210
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SSDEEP
12288:ljm4vqLJXufpaM/XUO3yN3Auu7FIaZ855QzSJ5OAQWI2reYMl8G7qn1yP45T:EGstWaM/XUcy3u7CaZE5QzSJ5OAI2reO
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.jaoy
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offline_id
umIwyPwiSJOJvBcdwrWXqzHWO4ar4za6seqWE2t1
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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
5.2
35aa2808fb90f9e9dac907e1be77f310
https://t.me/odyssey_tg
https://steamcommunity.com/profiles/76561199541261200
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profile_id_v2
35aa2808fb90f9e9dac907e1be77f310
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user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.30 (KHTML, like Gecko) Chrome/115.0.1.0 Safari/537.30
Targets
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Target
a81c1b508619db121b034f4f23db8de10da54c115118666fc3f95f2b83b28b67
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Size
716KB
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MD5
7eb91e6d5171e43544c3ea208e8aabdd
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SHA1
fd11c286d1f2e02ffaa7fd7a50e02e27102c717c
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SHA256
a81c1b508619db121b034f4f23db8de10da54c115118666fc3f95f2b83b28b67
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SHA512
317e5ec726ce6450ad637f79c8b5917f599a75da2d8013a71a4a3165cf4c475e9cfa1c3bedfa975fa72f3e781d155c3725ad27ad5836c79e36c23ff11d79b210
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SSDEEP
12288:ljm4vqLJXufpaM/XUO3yN3Auu7FIaZ855QzSJ5OAQWI2reYMl8G7qn1yP45T:EGstWaM/XUcy3u7CaZE5QzSJ5OAI2reO
Score10/10-
Detected Djvu ransomware
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Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Vidar
Vidar is an infostealer based on Arkei stealer.
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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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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses 2FA software files, possible credential harvesting
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Adds Run key to start application
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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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