General
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Target
c3c3397dcbb33aafaec4614e5472b9be820b6ccc95e02e09c9a563319c0528ca
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Size
769KB
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Sample
240329-ccc53afa78
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MD5
03ff1a794fae55922ed756cb5deae722
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SHA1
6df1de24d73da9860b32585523998b10b47213b6
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SHA256
c3c3397dcbb33aafaec4614e5472b9be820b6ccc95e02e09c9a563319c0528ca
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SHA512
f36f8f96478f8305d7a45fb87581a48b2c2aac7b0ff30f11147c5ae354a3b7b44e6dc325eece69d498b07c2edc163d152f7963b88fe3e646a3ad58d6c5836b45
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SSDEEP
12288:ibJbu4SBUSEGeqhQgonnXR4NHeTntddE80XmrPkf8wDssnfmIaS:ig43GeKQgoO+VwX2P48UssOS
Static task
static1
Behavioral task
behavioral1
Sample
c3c3397dcbb33aafaec4614e5472b9be820b6ccc95e02e09c9a563319c0528ca.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
c3c3397dcbb33aafaec4614e5472b9be820b6ccc95e02e09c9a563319c0528ca.exe
Resource
win10-20240221-en
Malware Config
Extracted
djvu
http://sajdfue.com/test2/get.php
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extension
.looy
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offline_id
1eSPzWRaNslCgtjBZfL5pzvovoiaVI4IZSnvAwt1
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payload_url
http://sdfjhuz.com/dl/build2.exe
http://sajdfue.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
8.6
5739ef2bbcd39fcd59c5746bfe4238c5
https://steamcommunity.com/profiles/76561199658817715
https://t.me/sa9ok
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profile_id_v2
5739ef2bbcd39fcd59c5746bfe4238c5
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36
Targets
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Target
c3c3397dcbb33aafaec4614e5472b9be820b6ccc95e02e09c9a563319c0528ca
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Size
769KB
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MD5
03ff1a794fae55922ed756cb5deae722
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SHA1
6df1de24d73da9860b32585523998b10b47213b6
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SHA256
c3c3397dcbb33aafaec4614e5472b9be820b6ccc95e02e09c9a563319c0528ca
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SHA512
f36f8f96478f8305d7a45fb87581a48b2c2aac7b0ff30f11147c5ae354a3b7b44e6dc325eece69d498b07c2edc163d152f7963b88fe3e646a3ad58d6c5836b45
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SSDEEP
12288:ibJbu4SBUSEGeqhQgonnXR4NHeTntddE80XmrPkf8wDssnfmIaS:ig43GeKQgoO+VwX2P48UssOS
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Detect Vidar Stealer
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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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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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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1