Analysis
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max time kernel
98s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
29/08/2023, 14:13
Static task
static1
Behavioral task
behavioral1
Sample
AMGkalem.zip
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
AMGkalem/amgkalem.exe
Resource
win7-20230824-en
Behavioral task
behavioral3
Sample
AMGkalem/amgkalem.exe
Resource
win7-20230712-en
Behavioral task
behavioral4
Sample
AMGkalem/amgkalem.runtimeconfig.json
Resource
win7-20230712-en
General
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Target
AMGkalem/amgkalem.runtimeconfig.json
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Size
266B
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MD5
d720176a229e9d969b40fabeb0baf62e
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SHA1
f2d8e97a6c6098a10dd80553eaaef7547ad32ba3
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SHA256
321b4e463bbacd6113aa337511bdebf5e7356e9971744346b28424607c7b483a
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SHA512
0844f9aca147014a68248c43310bf97e0a0a3679fc84650aa0a27aa09f70f56fa071c0ace1be80f0e33ce4dd3f865eae11e946d98d21af916dc1a7f945acaba0
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 9 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_Classes\Local Settings rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\json_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\json_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\json_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\json_auto_file rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\.json rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\.json\ = "json_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\json_auto_file\shell rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2836 AcroRd32.exe 2836 AcroRd32.exe 2836 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2784 wrote to memory of 2808 2784 cmd.exe 29 PID 2784 wrote to memory of 2808 2784 cmd.exe 29 PID 2784 wrote to memory of 2808 2784 cmd.exe 29 PID 2808 wrote to memory of 2836 2808 rundll32.exe 30 PID 2808 wrote to memory of 2836 2808 rundll32.exe 30 PID 2808 wrote to memory of 2836 2808 rundll32.exe 30 PID 2808 wrote to memory of 2836 2808 rundll32.exe 30
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\AMGkalem\amgkalem.runtimeconfig.json1⤵
- Suspicious use of WriteProcessMemory
PID:2784 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\AMGkalem\amgkalem.runtimeconfig.json2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2808 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\AMGkalem\amgkalem.runtimeconfig.json"3⤵
- Suspicious use of SetWindowsHookEx
PID:2836
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3KB
MD5babcc7c0b9f293f70414b75723bd8455
SHA18d99d5869c341a3275bf7b1e3d8a5b8f3a6a8368
SHA25640d503d8014474aa653464d1a396c59e33e793e23c8d287a2ae331386cf7ae05
SHA512f30f867136ecabfe089eec87e96f9072f377e39612fe53c9256d582aae7d31a8f0ee4a0557885e5cad4b173ca8bac005cc32599f215323f2d36c6fc7209089d1