c3287943f04829680ed363dde92950259b70235de215e44b958ff2090b960d1f

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 19:53

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General

Target

creal.pyc
Size

49KB
MD5

156359611afe30c92b1eea1dc3c8234f
SHA1

2aed1d8a56c6f0a4489c921474362769e21a439b
SHA256

e3c2c462f098f00425cbe737f8878880c90ebebe48966d42694db87d89a331fc
SHA512

b1341f750734c783f246d4843794b7aa04552fed5805f73f0f2405f2334ad524ed5cbbaa548309632c1630542e83fd2e1c834a8024d8dbf17d7b582a08283a71
SSDEEP

1536:zr1GFEfrLPpZ73YU725iZc8QQmGw9HRpN:zhGFEDLfYUUiibN

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-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_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
2508	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2508	AcroRd32.exe
2508	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 2664	2856	cmd.exe	29
PID 2856 wrote to memory of 2664	2856	cmd.exe	29
PID 2856 wrote to memory of 2664	2856	cmd.exe	29
PID 2664 wrote to memory of 2508	2664	rundll32.exe	30
PID 2664 wrote to memory of 2508	2664	rundll32.exe	30
PID 2664 wrote to memory of 2508	2664	rundll32.exe	30
PID 2664 wrote to memory of 2508	2664	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\creal.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2856
- 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:2664
- - 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:2508

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
1d722d15c3fbeecbf2afd2d5987cd2ea

SHA1
33811eed4619e5fa8d369c1d8a03f092d694fe08

SHA256
de859c059e3edf9e0f017d0167982d32bb0e06551a0dd47777c3a20817dcef9d

SHA512
bddbec6783dca56af3e6607c061dad1a6a6296a92cea8198606d2670fb2534a223a4d8b2a410ce6210527615c85f02b410c25b7ffd85942b4020f686bd4206ae

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