General
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Target
E39198B2387731ADAF3B28EF7234A83C.exe
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Size
4.0MB
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Sample
210703-j6y111tfhx
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MD5
e39198b2387731adaf3b28ef7234a83c
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SHA1
ee6a8aa67f0ed2634bc43b09b0f7d5666e03516b
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SHA256
fceeb6a2cbe5569d068c73f4d8b89ef6eebd51691f879a2f8d6db8f8300aea97
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SHA512
a3eb7728c8f63f772af553a1730e1585bae28487afa4e8e2e84f7e70f0ac1bb778dd2642a8c15b95138b196db8ec3d4f433cbed70a502649d0a4519d5055e7aa
Static task
static1
Behavioral task
behavioral1
Sample
E39198B2387731ADAF3B28EF7234A83C.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
E39198B2387731ADAF3B28EF7234A83C.exe
Resource
win10v20210408
Malware Config
Extracted
redline
DomAni
varinnitof.xyz:80
Extracted
C:\_readme.txt
https://we.tl/t-ggGVjyTdgD
Targets
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Target
E39198B2387731ADAF3B28EF7234A83C.exe
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Size
4.0MB
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MD5
e39198b2387731adaf3b28ef7234a83c
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SHA1
ee6a8aa67f0ed2634bc43b09b0f7d5666e03516b
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SHA256
fceeb6a2cbe5569d068c73f4d8b89ef6eebd51691f879a2f8d6db8f8300aea97
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SHA512
a3eb7728c8f63f772af553a1730e1585bae28487afa4e8e2e84f7e70f0ac1bb778dd2642a8c15b95138b196db8ec3d4f433cbed70a502649d0a4519d5055e7aa
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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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Checks for common network interception software
Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.
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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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Drops file in Drivers directory
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Executes dropped EXE
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Modifies Windows Firewall
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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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 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 NtCreateThreadExHideFromDebugger
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v6
Persistence
Modify Existing Service
2New Service
1Registry Run Keys / Startup Folder
2Defense Evasion
Disabling Security Tools
2File and Directory Permissions Modification
1Install Root Certificate
1Modify Registry
6Virtualization/Sandbox Evasion
1Web Service
1