8a714538823fc5e4cdbec6114c6d30fe3ab2eb2b557b81de4c59e073c85aa765

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 20:21

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General

Target

Creal.pyc
Size

397KB
MD5

7bf34bc63c944b81516226e9ed996cf3
SHA1

23eb0ff3f0a315c5a81095d135537984a39ff5a7
SHA256

b88747a93c42675aafb603b1df42aadd5d3768ea21019cde2049c6031598da54
SHA512

d9915cc8f54443e381a924c5b9ce1e7ed5eb45ed898482cc549281fad61624d8b8ed250093262b6c3a731c63c9d2149ef38ae20ee212157a79ecea875b0f15ee
SSDEEP

6144:fQUg605ApAzYmfiTNh3zDv8GT72EBEO35rNx0E:oUg6nAUmfiTNh3zDv8GOLA5WE

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
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000_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
2972	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2972	AcroRd32.exe
2972	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2556	2720	cmd.exe	29
PID 2720 wrote to memory of 2556	2720	cmd.exe	29
PID 2720 wrote to memory of 2556	2720	cmd.exe	29
PID 2556 wrote to memory of 2972	2556	rundll32.exe	30
PID 2556 wrote to memory of 2972	2556	rundll32.exe	30
PID 2556 wrote to memory of 2972	2556	rundll32.exe	30
PID 2556 wrote to memory of 2972	2556	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Creal.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2720
- 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:2556
- - 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:2972

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
cd4d1c57ea3a9078e6b9af5e7dfa2af0

SHA1
3818607962e26be9bc68d15353e8ca866fff98cf

SHA256
09b482096627910f64e6370bc95c1086252e984d9c66ee49eddfa5038337cdfa

SHA512
d48ec64c7ac0982c6615f897eec9c2c08c864fae71b925b26b36b5ae81ea5afe8023aa640b62c68f32ae0f27fd24e53673cf127fc747a3bb4f2e83eb2d4ef68b

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