General
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Target
file.exe
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Size
259KB
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Sample
230327-jzeezaed91
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MD5
37d059689141316003e150dc31a34c23
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SHA1
c5ec49918d6b6730c81d2a4285bb2445553dcd02
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SHA256
dfafc19065140674c7b3e3ffe533f121fe6b2fe1ffb9c0a2dfc15a9d030a0630
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SHA512
4c0b8f91fd8486c7737698ac00add93398c4fffb59b0bc59a9793e119d0737f08517368550f8f9604ac198d8538c5efa1bd7291d8cd59addb9f1b112640698c6
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SSDEEP
3072:5TlmjeeWXQDwL/5qiFexXUKaKO9y4oeeW2BfsfBXYjzBJzVrsNME4Cs5xbKuEXq:5YXDwLgimX5GdeDBfsJXYjzbiNP45zE
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
file.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/
http://hoh0aeghwugh2gie.com/
http://hie7doodohpae4na.com/
http://aek0aicifaloh1yo.com/
http://yic0oosaeiy7ahng.com/
http://wa5zu7sekai8xeih.com/
Extracted
djvu
http://zexeq.com/lancer/get.php
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extension
.typo
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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
Targets
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Target
file.exe
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Size
259KB
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MD5
37d059689141316003e150dc31a34c23
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SHA1
c5ec49918d6b6730c81d2a4285bb2445553dcd02
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SHA256
dfafc19065140674c7b3e3ffe533f121fe6b2fe1ffb9c0a2dfc15a9d030a0630
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SHA512
4c0b8f91fd8486c7737698ac00add93398c4fffb59b0bc59a9793e119d0737f08517368550f8f9604ac198d8538c5efa1bd7291d8cd59addb9f1b112640698c6
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SSDEEP
3072:5TlmjeeWXQDwL/5qiFexXUKaKO9y4oeeW2BfsfBXYjzBJzVrsNME4Cs5xbKuEXq:5YXDwLgimX5GdeDBfsJXYjzbiNP45zE
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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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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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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 Microsoft Outlook profiles
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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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Legitimate hosting services abused for malware hosting/C2
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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 NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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