General
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Target
4f983fefe91a630006f993b9de3e8d3e.exe
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Size
149KB
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Sample
210925-yd46tsdgf4
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MD5
4f983fefe91a630006f993b9de3e8d3e
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SHA1
6eecc14e11d5c183c2a0699ab6ab26e692462462
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SHA256
072dd3cb9c4155de3c094d9ce28b8c4ab7aa7b36d7d77eb034aa3272a017a90f
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SHA512
f2b4038e1c249349e7a68a5e21bf703593bf39878492971e8459f757ed46af93960399dc1d2d8571ba1a6fb52e44f9ed780f63aac1a25131c1ee13e5db6909e7
Static task
static1
Behavioral task
behavioral1
Sample
4f983fefe91a630006f993b9de3e8d3e.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
4f983fefe91a630006f993b9de3e8d3e.exe
Resource
win10v20210408
Malware Config
Extracted
smokeloader
2020
http://naghenrietti1.top/
http://kimballiett2.top/
http://xadriettany3.top/
http://jebeccallis4.top/
http://nityanneron5.top/
http://umayaniela6.top/
http://lynettaram7.top/
http://sadineyalas8.top/
http://geenaldencia9.top/
http://aradysiusep10.top/
Extracted
raccoon
f6d7183c9e82d2a9b81e6c0608450aa66cefb51f
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url4cnc
https://t.me/justoprostohello
Extracted
raccoon
5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4
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url4cnc
https://t.me/agrybirdsgamerept
Extracted
redline
228
159.69.123.122:23857
Targets
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Target
4f983fefe91a630006f993b9de3e8d3e.exe
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Size
149KB
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MD5
4f983fefe91a630006f993b9de3e8d3e
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SHA1
6eecc14e11d5c183c2a0699ab6ab26e692462462
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SHA256
072dd3cb9c4155de3c094d9ce28b8c4ab7aa7b36d7d77eb034aa3272a017a90f
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SHA512
f2b4038e1c249349e7a68a5e21bf703593bf39878492971e8459f757ed46af93960399dc1d2d8571ba1a6fb52e44f9ed780f63aac1a25131c1ee13e5db6909e7
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BitRAT Payload
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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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XMRig Miner Payload
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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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Deletes itself
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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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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
New Service
1Modify Existing Service
1Registry Run Keys / Startup Folder
2Scheduled Task
1Defense Evasion
Disabling Security Tools
1Modify Registry
3Virtualization/Sandbox Evasion
1