General
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Target
7c3f03e447f1dd80729807b0a615512e7813f0d9d21646c1fe419e72ff72455b
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Size
3.1MB
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Sample
220312-ys7khaaec6
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MD5
fd8a840f717d40f95b95e76b1ed2a118
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SHA1
425ff87a1cbd4959a23accd5c1ab732d855e09ce
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SHA256
7c3f03e447f1dd80729807b0a615512e7813f0d9d21646c1fe419e72ff72455b
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SHA512
a89ed4185c21aa4b186a97f7835e5868a018050569bde114b3b6ecadd28091df75f435dbf45999b1f904bd5cfa22009d54fb3b70af6e8d877c70351e1861d146
Static task
static1
Behavioral task
behavioral1
Sample
7c3f03e447f1dd80729807b0a615512e7813f0d9d21646c1fe419e72ff72455b.exe
Resource
win7-20220310-en
Behavioral task
behavioral2
Sample
7c3f03e447f1dd80729807b0a615512e7813f0d9d21646c1fe419e72ff72455b.exe
Resource
win10v2004-20220310-en
Malware Config
Extracted
vidar
39.4
706
https://sergeevih43.tumblr.com/
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profile_id
706
Extracted
tofsee
patmushta.info
ovicrush.cn
Extracted
raccoon
ccba3157b9f42051adf38fbb8f5d0aca7f2b7366
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url4cnc
http://185.163.204.81/nui8xtgen
http://194.180.191.33/nui8xtgen
http://174.138.11.98/nui8xtgen
http://194.180.191.44/nui8xtgen
http://91.219.236.120/nui8xtgen
https://t.me/nui8xtgen
Extracted
vidar
50.7
937
https://ruhr.social/@sam9al
https://koyu.space/@samsa2l
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profile_id
937
Extracted
djvu
http://fuyt.org/test3/get.php
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extension
.xcbg
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offline_id
y6oQcfhmSRc7ZQ1q8yjLE3LhY8kK7FHg6LLlEht1
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payload_url
http://zerit.top/dl/build2.exe
http://fuyt.org/files/1/build3.exe
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ransomnote
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Extracted
smokeloader
2020
http://ppcspb.com/upload/
http://mebbing.com/upload/
http://twcamel.com/upload/
http://howdycash.com/upload/
http://lahuertasonora.com/upload/
http://kpotiques.com/upload/
Extracted
redline
ServAni
87.251.71.195:82
Extracted
redline
ruzki12_03
176.122.23.55:11768
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auth_value
c51ddc8008e8581a01cec6e8291c5530
Targets
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Target
7c3f03e447f1dd80729807b0a615512e7813f0d9d21646c1fe419e72ff72455b
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Size
3.1MB
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MD5
fd8a840f717d40f95b95e76b1ed2a118
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SHA1
425ff87a1cbd4959a23accd5c1ab732d855e09ce
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SHA256
7c3f03e447f1dd80729807b0a615512e7813f0d9d21646c1fe419e72ff72455b
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SHA512
a89ed4185c21aa4b186a97f7835e5868a018050569bde114b3b6ecadd28091df75f435dbf45999b1f904bd5cfa22009d54fb3b70af6e8d877c70351e1861d146
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Detected Djvu ransomware
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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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Suspicious use of NtCreateUserProcessOtherParentProcess
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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OnlyLogger Payload
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Vidar Stealer
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Blocklisted process makes network request
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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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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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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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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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Drops file in System32 directory
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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
Modify Existing Service
2New Service
1Registry Run Keys / Startup Folder
1Scheduled Task
1Defense Evasion
Modify Registry
3Disabling Security Tools
1Virtualization/Sandbox Evasion
1Install Root Certificate
1