Analysis
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max time kernel
119s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
14-06-2024 06:19
Behavioral task
behavioral1
Sample
solus.exe
Resource
win7-20240221-en
windows7-x64
Behavioral task
behavioral2
Sample
solus.exe
Resource
win10v2004-20240611-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
Stub.pyc
Resource
win7-20240611-en
windows7-x64
Behavioral task
behavioral4
Sample
Stub.pyc
Resource
win10v2004-20240508-en
windows10-2004-x64
General
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Target
Stub.pyc
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Size
874KB
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MD5
f9369c0d943787d8d24ad6e60d338ece
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SHA1
f0f1d82b2c8f817f85630a1aafa9613d761d1f8a
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SHA256
1c10921d6f3272516f6d78dd4827d65e7fcc78210c84f31b13ee6c2d8b80cff3
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SHA512
7653577098f7b0a241e3d28bd160445b0ae49576217233eb0847d3ff474b63e03f63b9c68f0f620e4656623dae8f21e4a4bcab9d1c5325cf5461b313d54546d4
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SSDEEP
12288:SNMzgcDJP6+QPSQus/ukmLSdItqQXbbbqOESR1Gw3J/ZU926rfUbj7UXR5n2:SNMbPaSxJ3XXLPHGyegIfPB5n2
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-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file\shell rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\.pyc rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\.pyc\ = "pyc_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file\shell\Read\command rundll32.exe Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\pyc_auto_file rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2532 rundll32.exe -
Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe 2532 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2432 AcroRd32.exe 2432 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2860 wrote to memory of 2532 2860 cmd.exe 29 PID 2860 wrote to memory of 2532 2860 cmd.exe 29 PID 2860 wrote to memory of 2532 2860 cmd.exe 29 PID 2532 wrote to memory of 2432 2532 rundll32.exe 32 PID 2532 wrote to memory of 2432 2532 rundll32.exe 32 PID 2532 wrote to memory of 2432 2532 rundll32.exe 32 PID 2532 wrote to memory of 2432 2532 rundll32.exe 32
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Stub.pyc1⤵
- Suspicious use of WriteProcessMemory
PID:2860 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Stub.pyc2⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2532 -
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\Stub.pyc"3⤵
- Suspicious use of SetWindowsHookEx
PID:2432
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3KB
MD56678c88a21afc1c62f9766c0f4a519ec
SHA13e38c488d8e46d2dd6012f490e3e0d0cd52c0ec5
SHA256db36d058bf92b32a3323d3adc8444fefd41fac49de42573c4883c02fabb40e16
SHA5127a13eb7196d5f804f12cef9d45f99084c930d5fbe8848be37d8058279a52d274d85ebbd2eddd28d6741632667ec47d9378efece51ecba6c424808f1365f4fffc