General
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Target
469962a84b76a4e6c75f448a739230c3.exe
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Size
267KB
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Sample
240306-gf8tcsde72
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MD5
469962a84b76a4e6c75f448a739230c3
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SHA1
7f75e106dc00e16d91dc22d98080c1c61a92186c
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SHA256
6d22ba4779752e3cc313f404b9ed0ef664b5b775f97c310149a2b1aceea302a1
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SHA512
5b526017e690f7af60cc2d7e0451cad745358505a69fe48dbdfeb273e29d49c50cc53229dd406b17bfc9bf770c7a70fda70cf940bd268cfb9ad3a9606309f297
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SSDEEP
3072:D4mRMsbv3SmVddrgPPjGyBplg+sttlRUwsGSBjYgtvUt5pQQsI:nf7VddrgXjGyBpavYZPcJQQs
Static task
static1
Behavioral task
behavioral1
Sample
469962a84b76a4e6c75f448a739230c3.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
469962a84b76a4e6c75f448a739230c3.exe
Resource
win10v2004-20240226-en
Malware Config
Extracted
smokeloader
pub1
Extracted
smokeloader
2022
http://trad-einmyus.com/index.php
http://tradein-myus.com/index.php
http://trade-inmyus.com/index.php
Extracted
djvu
http://sajdfue.com/test1/get.php
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extension
.wisz
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offline_id
4p0Nzrg1q0ND5of5Gtp2UBjthSXuE8VxnMrd4vt1
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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
8.1
e2da5861d01d391b927839bbec00e666
https://steamcommunity.com/profiles/76561199649267298
https://t.me/uprizin
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profile_id_v2
e2da5861d01d391b927839bbec00e666
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 OPR/96.0.0.0
Targets
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Target
469962a84b76a4e6c75f448a739230c3.exe
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Size
267KB
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MD5
469962a84b76a4e6c75f448a739230c3
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SHA1
7f75e106dc00e16d91dc22d98080c1c61a92186c
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SHA256
6d22ba4779752e3cc313f404b9ed0ef664b5b775f97c310149a2b1aceea302a1
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SHA512
5b526017e690f7af60cc2d7e0451cad745358505a69fe48dbdfeb273e29d49c50cc53229dd406b17bfc9bf770c7a70fda70cf940bd268cfb9ad3a9606309f297
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SSDEEP
3072:D4mRMsbv3SmVddrgPPjGyBplg+sttlRUwsGSBjYgtvUt5pQQsI:nf7VddrgXjGyBpavYZPcJQQs
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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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Detect Vidar Stealer
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Detected Djvu ransomware
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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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 Enterprise v15
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
1Defense Evasion
File and Directory Permissions Modification
1Modify Registry
2Subvert Trust Controls
1Install Root Certificate
1