71ddfacd8ba48806396c95b279237998945cf8124875728f92d8a9d0489cddd2

Analysis

max time kernel
153s
max time network
130s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
09-11-2023 22:02

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General

Target

UserDict.pyc
Size

11KB
MD5

efcbe1f3ba66174c7498b9d02b74c84c
SHA1

dbe94d3516b2b179124dbb7db5fa6241c3e6045c
SHA256

94dd9035bc81842df7e50550da82db7bcf3d2786387c34bca660e0836d67e9b3
SHA512

b3133caccd23b2598a10e38d08b5338426b2bd4488f984841535dd8802054619690b7763e1c38c5a61e9de1f7d15543fb0da6d91672256649022f3aa858d510d
SSDEEP

192:rhktDonbVYqbaighlUFLynIxNaHH28fbKHO0uo9DIKJq70KZEJ4blivYbi5+SH5P:3nbOqbaiAqFLynIxNanBfOO0uoaKJq7G

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-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\pyc_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2620	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2620	AcroRd32.exe
2620	AcroRd32.exe
2620	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2604	2412	cmd.exe	29
PID 2412 wrote to memory of 2604	2412	cmd.exe	29
PID 2412 wrote to memory of 2604	2412	cmd.exe	29
PID 2604 wrote to memory of 2620	2604	rundll32.exe	30
PID 2604 wrote to memory of 2620	2604	rundll32.exe	30
PID 2604 wrote to memory of 2620	2604	rundll32.exe	30
PID 2604 wrote to memory of 2620	2604	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\UserDict.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\UserDict.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2604
- - 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\UserDict.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2620

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

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Downloads

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

Filesize
3KB

MD5
57611a6f5cfacb8ada46ae25879dce76

SHA1
32c66524dbd3ed5051d79cf943ac98ce3da0d2c1

SHA256
2ebaaae812ba3dcd992d3f870a0e8d9d3a6e097a55905e8c13b5b019718d3990

SHA512
9bc4dfd644d4fe0aae074726674cfc686c956cfb65b49cdcc35506faf6b757daa01355c659807eacdca61a86cdff937049b5d7a9a9dda28bdc0a0a6a76907c15

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