General
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Target
1efa56669738d9ef717aae854188495d.exe
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Size
175KB
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Sample
210331-k2vmzvys8e
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MD5
1efa56669738d9ef717aae854188495d
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SHA1
3ff0cbdc4ec92da762c909fa42c23fcd6ff5519c
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SHA256
addfb046313926c0cfb9e4293f76c408d8e6798e129f1a1043835088c54aa69b
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SHA512
291ec99476a3d35d6f4d862b8f7e1380cb6cc49f4c5725befe53888d38e77b346e849aace9685e0d233b53ac2b4f8e5f4943976dc4295f2385b6d080c9eb984a
Static task
static1
Behavioral task
behavioral1
Sample
1efa56669738d9ef717aae854188495d.exe
Resource
win7v20201028
Malware Config
Extracted
smokeloader
2020
http://xsss99.icu/upload/
http://bingooodsg.icu/upload/
http://junntd.xyz/upload/
http://ginessa11.xyz/upload/
http://overplayninsx.xyz/upload/
http://bananinze.com/upload/
http://daunimlas.com/upload/
Targets
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Target
1efa56669738d9ef717aae854188495d.exe
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Size
175KB
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MD5
1efa56669738d9ef717aae854188495d
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SHA1
3ff0cbdc4ec92da762c909fa42c23fcd6ff5519c
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SHA256
addfb046313926c0cfb9e4293f76c408d8e6798e129f1a1043835088c54aa69b
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SHA512
291ec99476a3d35d6f4d862b8f7e1380cb6cc49f4c5725befe53888d38e77b346e849aace9685e0d233b53ac2b4f8e5f4943976dc4295f2385b6d080c9eb984a
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Suspicious use of NtCreateProcessExOtherParentProcess
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Creates new service(s)
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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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Deletes itself
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Loads dropped DLL
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Modifies file permissions
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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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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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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
2Bootkit
1Defense Evasion
Modify Registry
3File Permissions Modification
1Install Root Certificate
1