General
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Target
00e04bfff7ac2f455aaa9907086f7a2d59656bbbb8d9270bab74e50b2528fc61
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Size
345KB
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Sample
230429-hgk95aab33
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MD5
3f94b9c7227b99ffd983e4be2247e9c9
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SHA1
496a4d940f52348407f15fa9c7aa04e09dd15ee0
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SHA256
00e04bfff7ac2f455aaa9907086f7a2d59656bbbb8d9270bab74e50b2528fc61
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SHA512
dc4ba39e06ee66b3607b5acc9ffbed0ead172df2ee41384af0af7f1091fa2452954082cda2fc1416aaab8ba91638534f67294b2097790d7ecdc498da5c1efe8b
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SSDEEP
3072:3f5207RyNr+/BR7xmmOAe/uQe4w7v9tfmrIEmmkga1ivDsiiTefqCjU:RbMqpSmO7C7VdPEmm5siiE9
Static task
static1
Behavioral task
behavioral1
Sample
00e04bfff7ac2f455aaa9907086f7a2d59656bbbb8d9270bab74e50b2528fc61.exe
Resource
win10-20230220-en
Malware Config
Extracted
smokeloader
2022
http://potunulit.org/
http://hutnilior.net/
http://bulimu55t.net/
http://soryytlic4.net/
http://novanosa5org.org/
http://nuljjjnuli.org/
http://tolilolihul.net/
http://somatoka51hub.net/
http://hujukui3.net/
http://bukubuka1.net/
http://golilopaster.org/
http://newzelannd66.org/
http://otriluyttn.org/
http://aapu.at/tmp/
http://poudineh.com/tmp/
http://firsttrusteedrx.ru/tmp/
http://kingpirate.ru/tmp/
Extracted
smokeloader
pub1
Extracted
amadey
3.70
77.73.134.27/n9kdjc3xSf/index.php
Extracted
djvu
http://zexeq.com/lancer/get.php
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extension
.foty
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offline_id
JFtdCcJoPS9sBORc6lnQV44QG764HrKKynxqdVt1
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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
3.6
1616034f091df9fd0229bc38dd17597f
https://steamcommunity.com/profiles/76561199499188534
https://t.me/nutalse
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profile_id_v2
1616034f091df9fd0229bc38dd17597f
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user_agent
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
Extracted
vidar
3.6
5cb879265de0011bfc7588d5d251aee6
https://steamcommunity.com/profiles/76561199499188534
https://t.me/nutalse
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profile_id_v2
5cb879265de0011bfc7588d5d251aee6
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user_agent
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
Targets
-
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Target
00e04bfff7ac2f455aaa9907086f7a2d59656bbbb8d9270bab74e50b2528fc61
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Size
345KB
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MD5
3f94b9c7227b99ffd983e4be2247e9c9
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SHA1
496a4d940f52348407f15fa9c7aa04e09dd15ee0
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SHA256
00e04bfff7ac2f455aaa9907086f7a2d59656bbbb8d9270bab74e50b2528fc61
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SHA512
dc4ba39e06ee66b3607b5acc9ffbed0ead172df2ee41384af0af7f1091fa2452954082cda2fc1416aaab8ba91638534f67294b2097790d7ecdc498da5c1efe8b
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SSDEEP
3072:3f5207RyNr+/BR7xmmOAe/uQe4w7v9tfmrIEmmkga1ivDsiiTefqCjU:RbMqpSmO7C7VdPEmm5siiE9
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Detected Djvu ransomware
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Modifies security service
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Downloads MZ/PE file
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Stops running service(s)
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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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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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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v6
Persistence
Modify Existing Service
2Registry Run Keys / Startup Folder
1Scheduled Task
1Defense Evasion
File and Directory Permissions Modification
1Impair Defenses
1Modify Registry
2