2f0938d6bd9306b7bd6b7a1367503c3c00206da7975d3e95ab2b1f39366e0234

Resubmissions

15-04-2024 19:47

240415-yhvsysee92 10

11-02-2024 21:53

240211-1rtncsbh6y 10

11-02-2024 16:00

240211-tf4wmahe8s 10

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
11-02-2024 16:00

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General

Target

creal.pyc
Size

32KB
MD5

651717bdcddac421fd3ffa1e23f14ece
SHA1

3074d6ad6c2cbce00a9de2307d1664d80d890c39
SHA256

18c562fc51a4b30bca6aeca0e07bd3455b0aab96441dea4be498051783bd80b2
SHA512

1c35e2905a026f7eda5dc7675967c7b41ca055f3efe9eb89d5f152160f3bb4165286adad16fcda72834bb684b10627824dfda3187e03990f3703d9d2943dfd9e
SSDEEP

768:L8Dnr72VsfNEiyGuAfKFMrRtfqtvEwS7bnjerAroaHjsIAcn8YC06X:IjrveZaKFcfDwS7fuPc8YD6X

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-1-5-21-452311807-3713411997-1028535425-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2908	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2908	AcroRd32.exe
2908	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 3016	2496	cmd.exe	29
PID 2496 wrote to memory of 3016	2496	cmd.exe	29
PID 2496 wrote to memory of 3016	2496	cmd.exe	29
PID 3016 wrote to memory of 2908	3016	rundll32.exe	30
PID 3016 wrote to memory of 2908	3016	rundll32.exe	30
PID 3016 wrote to memory of 2908	3016	rundll32.exe	30
PID 3016 wrote to memory of 2908	3016	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\creal.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\creal.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3016
- - 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\creal.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2908

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

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
d51883ed7e4bd18f5f9eefe7b00fc119

SHA1
e18af28321d68acae0a63a4fed945293a3466c2b

SHA256
c9ba1f3ca48e3bf00d2849788cd776db8b1b4e5fd92d8a65d13569079c784bbd

SHA512
230fc8e42f71567d738969543038d9f945a5e75fe726315f982de9a5c6a5cdb04162c0a003e6c84093d2bee92547697b94bc9f37647408b3d1d32710c6a1ce7e

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