General
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Target
setup.exe
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Size
249KB
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Sample
230401-cjzyeagf4y
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MD5
71d7642a17f565f951d4ad1883f65c7b
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SHA1
26311d285cdbc64e368afb40f1509e0369314db7
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SHA256
b1dcbe40b8c9e76486412c5fa3ef326eb1bb0289691e4022ba8dde878816fdf6
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SHA512
bf1a09e6527e7fb775ccff00813dc54a2fdcde3a586541b04d2cbcea743259cbbfbbcebf835dfbdded004b6462994828c5a53cc0d25bbd26077d50e7768da201
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SSDEEP
3072:qSs2lQFOot8XlD8RiZROpCRZ6m5C0IDJ6XZpQ5reDT8nugc3XZpxwWM7vy:llQovlDQpYZj5C0KJUzS8T8nGyV
Static task
static1
Behavioral task
behavioral1
Sample
setup.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
setup.exe
Resource
win10v2004-20230220-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
djvu
http://zexeq.com/test2/get.php
http://zexeq.com/lancer/get.php
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extension
.nifr
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offline_id
FCP2fiITr4rryFhFBnA59GMgwES5CunmcbPc76t1
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payload_url
http://uaery.top/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
smokeloader
pub1
Extracted
vidar
3.2
5df88deb5dde677ba658b77ad5f60248
https://steamcommunity.com/profiles/76561199489580435
https://t.me/tabootalks
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profile_id_v2
5df88deb5dde677ba658b77ad5f60248
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user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79
Extracted
amadey
3.65
77.73.134.27/8bmdh3Slb2/index.php
Targets
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Target
setup.exe
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Size
249KB
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MD5
71d7642a17f565f951d4ad1883f65c7b
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SHA1
26311d285cdbc64e368afb40f1509e0369314db7
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SHA256
b1dcbe40b8c9e76486412c5fa3ef326eb1bb0289691e4022ba8dde878816fdf6
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SHA512
bf1a09e6527e7fb775ccff00813dc54a2fdcde3a586541b04d2cbcea743259cbbfbbcebf835dfbdded004b6462994828c5a53cc0d25bbd26077d50e7768da201
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SSDEEP
3072:qSs2lQFOot8XlD8RiZROpCRZ6m5C0IDJ6XZpQ5reDT8nugc3XZpxwWM7vy:llQovlDQpYZj5C0KJUzS8T8nGyV
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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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Blocklisted process makes network request
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Downloads MZ/PE file
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Stops running service(s)
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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Suspicious use of SetThreadContext
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