General
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Target
setup.exe
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Size
249KB
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Sample
230324-bq8nfsbd24
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MD5
d1861a36f3f52128284a71957dc509f3
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SHA1
99e898ea74f6bfa19f62f47b6f7e6508f4617a5a
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SHA256
0cec683000fbbba67a387f8e508a5ffd167b0cfdb76fc4009ed820b0eb8ae09b
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SHA512
637e37ddc796b6666fb21cf776a90cf3b98df0056cc8b4c6108a85b1b23a712446f1611ce860ad980fb9d03a785794524cda125ad181c0afbe053d1db7b11b18
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SSDEEP
3072:Si3wQulF+VQL1Al9ugEAlWDWZYaU4yr3FiLpqMKa6mTSd5RcR+E5:hDVQLSlkOlhU4wUvKaL0u
Static task
static1
Behavioral task
behavioral1
Sample
setup.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
setup.exe
Resource
win10v2004-20230221-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/
http://hoh0aeghwugh2gie.com/
http://hie7doodohpae4na.com/
http://aek0aicifaloh1yo.com/
http://yic0oosaeiy7ahng.com/
http://wa5zu7sekai8xeih.com/
Extracted
djvu
http://zexeq.com/test2/get.php
http://zexeq.com/lancer/get.php
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extension
.tywd
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offline_id
Yao2o6f5vNghOpgVBhEIA8O96SC5vLcgITgaRMt1
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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
smokeloader
sprg
Extracted
amadey
3.65
77.73.134.27/8bmdh3Slb2/index.php
Extracted
vidar
3.1
00d92484c9b27bc8482a2cc94cacc508
https://steamcommunity.com/profiles/76561199472266392
https://t.me/tabootalks
http://135.181.26.183:80
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profile_id_v2
00d92484c9b27bc8482a2cc94cacc508
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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
Targets
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Target
setup.exe
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Size
249KB
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MD5
d1861a36f3f52128284a71957dc509f3
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SHA1
99e898ea74f6bfa19f62f47b6f7e6508f4617a5a
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SHA256
0cec683000fbbba67a387f8e508a5ffd167b0cfdb76fc4009ed820b0eb8ae09b
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SHA512
637e37ddc796b6666fb21cf776a90cf3b98df0056cc8b4c6108a85b1b23a712446f1611ce860ad980fb9d03a785794524cda125ad181c0afbe053d1db7b11b18
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SSDEEP
3072:Si3wQulF+VQL1Al9ugEAlWDWZYaU4yr3FiLpqMKa6mTSd5RcR+E5:hDVQLSlkOlhU4wUvKaL0u
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Detected Djvu ransomware
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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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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Executes dropped EXE
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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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