Analysis
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max time kernel
92s -
max time network
122s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
14/03/2024, 12:47
General
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Target
c8a77831eeaf7d17ef4e83e85e0605fa.exe
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Size
111KB
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MD5
c8a77831eeaf7d17ef4e83e85e0605fa
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SHA1
68ad7815b514111a48bd6b0a414ea2e66abe7fbe
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SHA256
24dc9bd87d4bf5af5098943b8a293e34ddd2b9e35367c994379ca6277e819791
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SHA512
7b833a5c845e7d452b69ff7a29094281819c773b313b82519679a6459f0a27ac771f7d6e486669c967ccc53f3f04965b9bbd28d6e9a90f6baf1fbd11e6bd60a3
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SSDEEP
3072:iXrFzL5OuRBnvV6Ci42FTieI9BPebAPTMHJX:YBzL5OgBv7UTkhy
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Loads dropped DLL 2 IoCs
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UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Adds Run key to start application 2 TTPs 1 IoCs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in System32 directory 2 IoCs
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 5 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
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Modifies Control Panel 8 IoCs
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Modifies registry class 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious behavior: RenamesItself 1 IoCs
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Suspicious use of AdjustPrivilegeToken 11 IoCs
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Suspicious use of WriteProcessMemory 3 IoCs
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\c8a77831eeaf7d17ef4e83e85e0605fa.exe"C:\Users\Admin\AppData\Local\Temp\c8a77831eeaf7d17ef4e83e85e0605fa.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Checks processor information in registry
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\.tt5498.tmp.vbs"2⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\srtasks.exeC:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:21⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\srtasks.exeC:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:31⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1002B
MD59df700c8f6fd43fac0a89aef04214bbd
SHA16ec8bc6d4041ccf19757757c0da6592469f71c57
SHA2569ab6f2c3cc3965cd05f81d859bdfac3b25a5e70178f61ea677d31987c4e142fd
SHA5128bbcd322f3998c0f7d81884737ca313c1353ac7e3899f168fc8d44eafbe064193353b8b16f92113288ff2102c47623b542861440c414b8acf36d75c4ad645d4d
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Filesize
59KB
MD5538f9ead95eba12134d95b4fe7082331
SHA1527c50b92b5cededdd5b7e3edda71cb13d108dac
SHA256a416bab39037854c14540edaaf80cff7b5f2e9db31eee235527574e8dedd54e6
SHA5124631ff7cf868348585ee0e26591b95be3ee8b232c7980f5013f4464f285b0fbdef41794c44cb8653d6fb6dc815c0c0a9f4af780bfeb9b23d2f4c3bdc62bf4581
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Filesize
220KB
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Filesize
192KB
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Filesize
220KB
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Filesize
220KB
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Filesize
220KB
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Filesize
720KB
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Filesize
220KB
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Filesize
192KB