General
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Target
jojojo.exe
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Size
34KB
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Sample
210120-kb1wrf1kmn
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MD5
5bb718a52c52383cea5361519559b683
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SHA1
54298a1c380568d1d76b103fa267ded82d6a778a
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SHA256
43ae34f089374f6293998924525d9e8516c59bf2cd8150a7c01d6c565c85aa10
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SHA512
36ad2bbb7315f4290844cb433c081265815b69553c2fd025615e989bbf3214f16d0686e100f701db7c827d9c43f0d21f41da9b3d5648ec423b14b35ecc7d9781
Static task
static1
Behavioral task
behavioral1
Sample
jojojo.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
jojojo.exe
Resource
win10v20201028
Malware Config
Targets
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Target
jojojo.exe
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Size
34KB
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MD5
5bb718a52c52383cea5361519559b683
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SHA1
54298a1c380568d1d76b103fa267ded82d6a778a
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SHA256
43ae34f089374f6293998924525d9e8516c59bf2cd8150a7c01d6c565c85aa10
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SHA512
36ad2bbb7315f4290844cb433c081265815b69553c2fd025615e989bbf3214f16d0686e100f701db7c827d9c43f0d21f41da9b3d5648ec423b14b35ecc7d9781
Score10/10-
Modifies WinLogon for persistence
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Turns off Windows Defender SpyNet reporting
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Looks for VirtualBox Guest Additions in registry
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Looks for VMWare Tools registry key
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Drops startup file
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Enumerates physical storage devices
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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
Winlogon Helper DLL
1Modify Existing Service
1Registry Run Keys / Startup Folder
1Defense Evasion
Modify Registry
6Disabling Security Tools
4Virtualization/Sandbox Evasion
2