General
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Target
668785ba1ebccf34e1b7b0a828fcc0233ca0bfe8e654620ad60de26479ecaf8b
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Size
146KB
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Sample
221001-ert38sfde5
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MD5
84aa3bae7784fefd45bf783ef15423a2
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SHA1
b181ea2d68b8b0e4f9094db959203679050f268c
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SHA256
668785ba1ebccf34e1b7b0a828fcc0233ca0bfe8e654620ad60de26479ecaf8b
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SHA512
f884aa43fcae20cdd820fb95bc07555ff7dc0885022c6e7eb445e5546e69484bc3cf98e4a7748da8264364079f0680e50cb941b1d2aede55f2a57d9054c0e1aa
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SSDEEP
3072:l8wUBqVUPR1p0dEHrPYQHzMXcU79LB8mr9Oy13:jVSyWHsKqcApSmr9Oyt
Static task
static1
Behavioral task
behavioral1
Sample
668785ba1ebccf34e1b7b0a828fcc0233ca0bfe8e654620ad60de26479ecaf8b.exe
Resource
win10v2004-20220812-en
Malware Config
Extracted
djvu
http://winnlinne.com/lancer/get.php
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extension
.ofww
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offline_id
xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1
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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
54.7
517
https://t.me/trampapanam
https://nerdculture.de/@yoxhyp
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profile_id
517
Extracted
redline
installi
78.153.144.6:2510
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auth_value
f7a95740dfddbaa1471d1ac4f63cb78e
Targets
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Target
668785ba1ebccf34e1b7b0a828fcc0233ca0bfe8e654620ad60de26479ecaf8b
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Size
146KB
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MD5
84aa3bae7784fefd45bf783ef15423a2
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SHA1
b181ea2d68b8b0e4f9094db959203679050f268c
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SHA256
668785ba1ebccf34e1b7b0a828fcc0233ca0bfe8e654620ad60de26479ecaf8b
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SHA512
f884aa43fcae20cdd820fb95bc07555ff7dc0885022c6e7eb445e5546e69484bc3cf98e4a7748da8264364079f0680e50cb941b1d2aede55f2a57d9054c0e1aa
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SSDEEP
3072:l8wUBqVUPR1p0dEHrPYQHzMXcU79LB8mr9Oy13:jVSyWHsKqcApSmr9Oyt
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Detected Djvu ransomware
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Detects Smokeloader packer
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Modifies security service
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload
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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 Microsoft Outlook profiles
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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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MITRE ATT&CK Matrix ATT&CK v6
Persistence
Modify Existing Service
2Registry Run Keys / Startup Folder
1Scheduled Task
1Defense Evasion
Modify Registry
4Disabling Security Tools
2Bypass User Account Control
1File Permissions Modification
1