General
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Target
4eb8aaa41fc2ef6fdc3432cc47c09c66.exe
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Size
339KB
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Sample
211231-wsl8fshbb9
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MD5
4eb8aaa41fc2ef6fdc3432cc47c09c66
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SHA1
6aa99adf337e5db142aa3a75c416bad6e8f7a2ed
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SHA256
8cedc3fb74185394bbf60d2dc1f9618b1e576986f13031b9e29ef12daa6eaf2c
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SHA512
38c0f954f5e371fa11ad0a918e5d8e817807aea0e445b1f614e7a26583e692606966213e8e9c5df818f2a0fd1b7d93c48e25229a2825500bc56bb735f51f000d
Static task
static1
Behavioral task
behavioral1
Sample
4eb8aaa41fc2ef6fdc3432cc47c09c66.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
4eb8aaa41fc2ef6fdc3432cc47c09c66.exe
Resource
win10-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
4eb8aaa41fc2ef6fdc3432cc47c09c66.exe
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Size
339KB
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MD5
4eb8aaa41fc2ef6fdc3432cc47c09c66
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SHA1
6aa99adf337e5db142aa3a75c416bad6e8f7a2ed
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SHA256
8cedc3fb74185394bbf60d2dc1f9618b1e576986f13031b9e29ef12daa6eaf2c
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SHA512
38c0f954f5e371fa11ad0a918e5d8e817807aea0e445b1f614e7a26583e692606966213e8e9c5df818f2a0fd1b7d93c48e25229a2825500bc56bb735f51f000d
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Suspicious use of NtCreateProcessExOtherParentProcess
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Arkei Stealer 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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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
1Defense Evasion
Disabling Security Tools
1Modify Registry
2Virtualization/Sandbox Evasion
1