General
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Target
f073b540a352759bb44d7a1eb641fe61.exe
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Size
267KB
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Sample
220106-hxnp7abaf9
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MD5
f073b540a352759bb44d7a1eb641fe61
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SHA1
af036e219b6e7d6551713ad406d816d9f88b4312
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SHA256
067e76900265c87d66a44f765bb720bd310e52181badf19efd63f30210f62001
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SHA512
6a1d3e5bfd07f6a4b4d052078f6e09f3c8ff26a553fbfe0a713f580dc7e8a5c73772becb4df82d614aec6172c70f3986565f4bef40accb87bcf183c81c0c2c6e
Static task
static1
Behavioral task
behavioral1
Sample
f073b540a352759bb44d7a1eb641fe61.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
Targets
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Target
f073b540a352759bb44d7a1eb641fe61.exe
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Size
267KB
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MD5
f073b540a352759bb44d7a1eb641fe61
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SHA1
af036e219b6e7d6551713ad406d816d9f88b4312
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SHA256
067e76900265c87d66a44f765bb720bd310e52181badf19efd63f30210f62001
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SHA512
6a1d3e5bfd07f6a4b4d052078f6e09f3c8ff26a553fbfe0a713f580dc7e8a5c73772becb4df82d614aec6172c70f3986565f4bef40accb87bcf183c81c0c2c6e
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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