5303b0ca9cb27d649f528bef5f8f904ea1036f8f3833da3933e44f5c7109e099

Resubmissions

08/06/2024, 01:35

240608-bzxbsagb457

08/06/2024, 01:20

240608-bqbcysfh857

Analysis

max time kernel
126s
max time network
120s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
08/06/2024, 01:20

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General

Target
pretty.pyc
Size 1KB
Sample240608-bqbcysfh85
SHA256 2a4fe3c3ff33a3503dd52bf76987b828d2a85d49d7a2dc9e08983fa2bed6974d
MD5 e67624948b9c29b89d1c6fb0d2de2478
SHA1 7ad87d4fe3fa39d15df6b9b8cbe95707d917ca69
SHA512 a56552476865cce05b55890f16db16025fc2460447a57c6c9c41bf46f152b59392b90bf0aeefe9ea3e686c185598b7bec7501c4a48bfe747df3d5fcedae6db95
MD5 SHA1 SHA512

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_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-1-5-21-2737914667-933161113-3798636211-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pyc_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2884	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2884	AcroRd32.exe
2884	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2688	2412	cmd.exe	29
PID 2412 wrote to memory of 2688	2412	cmd.exe	29
PID 2412 wrote to memory of 2688	2412	cmd.exe	29
PID 2688 wrote to memory of 2884	2688	rundll32.exe	30
PID 2688 wrote to memory of 2884	2688	rundll32.exe	30
PID 2688 wrote to memory of 2884	2688	rundll32.exe	30
PID 2688 wrote to memory of 2884	2688	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\pretty.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\pretty.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2688
- - 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\pretty.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 deac55f9c538ab6b326c35905b8d6dd3cee6259c0424a8e2863c1feed5cd6e9a
MD5 ca71cef77ba12ff735ac7ac614f55e50
SHA1 4a1c903bd1bb074fb56469af4110cc10d65d1038
SHA512 90dcb3da24209982316331c02a30dd885f3e1c747d27a12c51748223d3f36e410d2ab7e0c1e97e281d26b23eefe7edf721369cb4c0f9b08c94c5b3e03c808380
MD5 SHA1 SHA512

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