General
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Target
31646747fe74d32212a7cbcb97c7d78d.exe
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Size
331KB
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Sample
211228-ewdl2sddf2
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MD5
31646747fe74d32212a7cbcb97c7d78d
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SHA1
62df758f397934053749ee38416a74f81a6d8ed6
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SHA256
02bcb080116ab55475edbcd1293246a0e5d8894793ee9e699db805bff2935408
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SHA512
d665c5a31de37667636d439483d46bcd1ca7f612256889a9c2b4cdab49faae2e23fe1dbbce09043eee0b17c65cd7cba400a133a5b06720062d81ceca345a1483
Static task
static1
Behavioral task
behavioral1
Sample
31646747fe74d32212a7cbcb97c7d78d.exe
Resource
win7-en-20211208
Malware Config
Extracted
smokeloader
2020
http://host-data-coin-11.com/
http://file-coin-host-12.com/
Extracted
tofsee
patmushta.info
parubey.info
Extracted
raccoon
10da56e7e71e97bdc1f36eb76813bbc3231de7e4
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url4cnc
http://194.180.174.53/capibar
http://91.219.236.18/capibar
http://194.180.174.41/capibar
http://91.219.236.148/capibar
https://t.me/capibar
Targets
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Target
31646747fe74d32212a7cbcb97c7d78d.exe
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Size
331KB
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MD5
31646747fe74d32212a7cbcb97c7d78d
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SHA1
62df758f397934053749ee38416a74f81a6d8ed6
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SHA256
02bcb080116ab55475edbcd1293246a0e5d8894793ee9e699db805bff2935408
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SHA512
d665c5a31de37667636d439483d46bcd1ca7f612256889a9c2b4cdab49faae2e23fe1dbbce09043eee0b17c65cd7cba400a133a5b06720062d81ceca345a1483
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Arkei Stealer 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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Deletes itself
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Drops startup file
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Loads dropped DLL
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Accesses cryptocurrency files/wallets, possible credential harvesting
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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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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
1Defense Evasion
Disabling Security Tools
1Modify Registry
3Virtualization/Sandbox Evasion
1Install Root Certificate
1