General
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Target
ef2c2cc837d9b7a159de833660cc0cfd.exe
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Size
280KB
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Sample
220922-sqr45sfefp
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MD5
ef2c2cc837d9b7a159de833660cc0cfd
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SHA1
09e806ab435a519e24e5b74497d0dc5bbcaa60cc
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SHA256
fec0ac35ef551ecb39759a3fc31d40830add20a77be072cf1605fa9cc4153bc2
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SHA512
83bdaeca8ee61a42b504eff4c20e73ddf7ceb2ae8db1f362317fa6c9980737d088fef0d63a51097d294e83ded457ff49217b9fd854957f2aa78d8fb19f02273f
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SSDEEP
6144:5pvyKcLYlEi+TL0pRyYPWiCaC3vjxe/90GwZ4igavwVf9R:5pKKNlE7aRyYPD5k4+BH
Static task
static1
Behavioral task
behavioral1
Sample
ef2c2cc837d9b7a159de833660cc0cfd.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
ef2c2cc837d9b7a159de833660cc0cfd.exe
Resource
win10v2004-20220812-en
Malware Config
Extracted
raccoon
7394a7fc5da9794209d8b0503ca4abf4
http://45.8.145.203
Extracted
djvu
http://winnlinne.com/lancer/get.php
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extension
.ofww
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offline_id
xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1
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payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.com/files/1/build3.exe
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ransomnote
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Extracted
redline
LogsDiller Cloud (Sup: @mr_golds)
77.73.134.27:8163
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auth_value
56c6f7b9024c076f0a96931453da7e56
Extracted
tofsee
svartalfheim.top
jotunheim.name
Targets
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Target
ef2c2cc837d9b7a159de833660cc0cfd.exe
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Size
280KB
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MD5
ef2c2cc837d9b7a159de833660cc0cfd
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SHA1
09e806ab435a519e24e5b74497d0dc5bbcaa60cc
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SHA256
fec0ac35ef551ecb39759a3fc31d40830add20a77be072cf1605fa9cc4153bc2
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SHA512
83bdaeca8ee61a42b504eff4c20e73ddf7ceb2ae8db1f362317fa6c9980737d088fef0d63a51097d294e83ded457ff49217b9fd854957f2aa78d8fb19f02273f
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SSDEEP
6144:5pvyKcLYlEi+TL0pRyYPWiCaC3vjxe/90GwZ4igavwVf9R:5pKKNlE7aRyYPD5k4+BH
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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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Detects Smokeloader packer
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Creates new service(s)
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Downloads MZ/PE file
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Executes dropped EXE
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Modifies Windows Firewall
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Sets service image path in registry
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting
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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 NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Matrix ATT&CK v6
Persistence
New Service
1Modify Existing Service
1Registry Run Keys / Startup Folder
2Scheduled Task
1Defense Evasion
Virtualization/Sandbox Evasion
1Modify Registry
2File Permissions Modification
1