00d4402179d21bface52a488a4aebc7d455f52f8ba19f6a01064a7c03e2a1816

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
05/08/2023, 20:38

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General

Target

Start.pyc
Size

1KB
MD5

c39d4cc566999e60a297c8f6d0b83da5
SHA1

4d84ecb5d59c49735b75ef18c9aa6f6df56d3532
SHA256

805ea120cbd0b5e17e7b91abb2b5e9f0671a0c1d83443a58cb2cee02e7ecf3a6
SHA512

d4ac0ad4ab47d697633bdca0a352aedfdbbb8dcbb066958a7aaba0c39def4c1ff4dafb4bf4a633694058128d03b4dac312d464c5f1a4916d75ffe64db3028be1

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-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_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-1-5-21-3408354897-1169622894-3874090110-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3408354897-1169622894-3874090110-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2860	AcroRd32.exe
2860	AcroRd32.exe
2860	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2900	2292	cmd.exe	29
PID 2292 wrote to memory of 2900	2292	cmd.exe	29
PID 2292 wrote to memory of 2900	2292	cmd.exe	29
PID 2900 wrote to memory of 2860	2900	rundll32.exe	30
PID 2900 wrote to memory of 2860	2900	rundll32.exe	30
PID 2900 wrote to memory of 2860	2900	rundll32.exe	30
PID 2900 wrote to memory of 2860	2900	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Start.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Start.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2900
- - 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\Start.pyc"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2860

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
e82eb2a6678b81357f49a63c963ecfef

SHA1
005c1e5885cd873e5d5dbddae2b920e2aa23eee0

SHA256
c6d39674334e8ed08360ffb50e4ca3d0f49074956c898f2240c824d2c67d1ccb

SHA512
68ef0b7f8343ad833f427b8e36493ff46b33eab5de46d33e583c60105d18932ef34b27e185c01ec8ff56f473da6079e486940ed2ae7ec5c2560040f4fd3ecf7e

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