Analysis
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max time kernel
117s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
06/07/2024, 09:07
Behavioral task
behavioral1
Sample
source_prepared.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
source_prepared.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral3
Sample
misc.pyc
Resource
win7-20240220-en
Behavioral task
behavioral4
Sample
misc.pyc
Resource
win10v2004-20240704-en
Behavioral task
behavioral5
Sample
source_prepared.pyc
Resource
win7-20240705-en
Behavioral task
behavioral6
Sample
source_prepared.pyc
Resource
win10v2004-20240704-en
General
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Target
source_prepared.pyc
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Size
100KB
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MD5
a16c42a4f0fb5c1d35025ec99e2135d5
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SHA1
fa7fa621da00d28e03ff3b3908a9ca23fec41178
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SHA256
6c31e5cf27c205e192793e7da557175df8125d4ac94355d38c3a451b44e3d735
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SHA512
0db13018ee4391d6f3dc375932e934db2d16d1c34396cfc10dec034cc99eadbe0d9981d6118e343a2e50b64e3e080a43204a0eb65325e373ad895f18660bde86
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SSDEEP
3072:u8cUzkogPFLIoVPZTJ0uplQbIvdXzK+siw:ub2koGuoKSpsT
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-1-5-21-2660163958-4080398480-1122754539-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\.pyc rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\.pyc\ = "pyc_auto_file" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\pyc_auto_file rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\pyc_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\pyc_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\pyc_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000_CLASSES\pyc_auto_file\shell\Read\command rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2792 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2792 AcroRd32.exe 2792 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2728 wrote to memory of 2780 2728 cmd.exe 31 PID 2728 wrote to memory of 2780 2728 cmd.exe 31 PID 2728 wrote to memory of 2780 2728 cmd.exe 31 PID 2780 wrote to memory of 2792 2780 rundll32.exe 32 PID 2780 wrote to memory of 2792 2780 rundll32.exe 32 PID 2780 wrote to memory of 2792 2780 rundll32.exe 32 PID 2780 wrote to memory of 2792 2780 rundll32.exe 32
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\source_prepared.pyc1⤵
- Suspicious use of WriteProcessMemory
PID:2728 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\source_prepared.pyc2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2780 -
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\source_prepared.pyc"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2792
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3KB
MD56ac2a50671c1c8601d11913420e906eb
SHA11d5b90a6b13078cd069f04374cf0ac398a64f79c
SHA256eb21a8c9b228964347c04f954255639ff11109ba054ffe47d5a9edb2de8008da
SHA512fa8fa962541560abef279e31327c9884368a9c372b9c2aea73685a229bbb6d706e20398d7f4266671e563e21624fb5a943276a52432effc7c51a5041511b1806