General
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Target
81708f0ddc438b5e98627043061e2c323b8d7a8e5d6ece467f28eded0d2ed9ff
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Size
243KB
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Sample
210919-l697bseebk
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MD5
a538c3aca8a6d23aa31e710e8c8f976e
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SHA1
e79ed494ec836fb39ce89cd4cc64dbbf5a3f6d16
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SHA256
81708f0ddc438b5e98627043061e2c323b8d7a8e5d6ece467f28eded0d2ed9ff
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SHA512
ecf3e387a9e5413bb897aaacd892b1ee0e85ac3b3457528f57cec8b557ce1ba95a1f2c5dd8459fc4a4852e8db51986e38888ba88791eb6e01348108f05fa67f9
Static task
static1
Malware Config
Extracted
smokeloader
2020
http://venerynnet1.top/
http://kevonahira2.top/
http://vegangelist3.top/
http://kingriffaele4.top/
http://arakeishant5.top/
Extracted
redline
UDP
45.9.20.20:13441
Targets
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Target
81708f0ddc438b5e98627043061e2c323b8d7a8e5d6ece467f28eded0d2ed9ff
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Size
243KB
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MD5
a538c3aca8a6d23aa31e710e8c8f976e
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SHA1
e79ed494ec836fb39ce89cd4cc64dbbf5a3f6d16
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SHA256
81708f0ddc438b5e98627043061e2c323b8d7a8e5d6ece467f28eded0d2ed9ff
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SHA512
ecf3e387a9e5413bb897aaacd892b1ee0e85ac3b3457528f57cec8b557ce1ba95a1f2c5dd8459fc4a4852e8db51986e38888ba88791eb6e01348108f05fa67f9
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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 Enterprise v6
Persistence
Modify Existing Service
1New Service
1Registry Run Keys / Startup Folder
2Defense Evasion
Disabling Security Tools
1Modify Registry
3Virtualization/Sandbox Evasion
1