71ddfacd8ba48806396c95b279237998945cf8124875728f92d8a9d0489cddd2

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
09-11-2023 22:02

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General

Target

abc.pyc
Size

6KB
MD5

77d1073653635e1d64467985019e2804
SHA1

63b8f4bdcc9b62736cdb7bb4db232e1a778dd244
SHA256

6c147d0976c7e7333ec9bc7a37e5191a602b10775bed9543cea99a4b8b08a747
SHA512

d00fc86e19194dcd781a9ab18cf34e008d3fedc9584a87459b64aacfea83a2e97660763a5d34c526800266d8588c85d4118ed4eb3432eea0840faa676591a7cc
SSDEEP

96:l8Cx06+SenQH/0x0CenQ9ZY6kj152Hvk2aqNonSmfcTxj+k6zB+BELfwLt2C2te:62+xf8152Pk2aioXfcMVyt22

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-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_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-1-5-21-2084844033-2744876406-2053742436-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2708	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2708	AcroRd32.exe
2708	AcroRd32.exe
2708	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2628 wrote to memory of 2284	2628	cmd.exe	29
PID 2628 wrote to memory of 2284	2628	cmd.exe	29
PID 2628 wrote to memory of 2284	2628	cmd.exe	29
PID 2284 wrote to memory of 2708	2284	rundll32.exe	30
PID 2284 wrote to memory of 2708	2284	rundll32.exe	30
PID 2284 wrote to memory of 2708	2284	rundll32.exe	30
PID 2284 wrote to memory of 2708	2284	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\abc.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\abc.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2284
- - 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\abc.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2708

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
f526adf962ddb7ae5bf93685019f6d45

SHA1
edc25cd459588a611fee55881197c23273136259

SHA256
461a0626334e5837fab79c46ebfbd593ecfffddb3ee971a716b7e0745589588e

SHA512
3fa65161acd5e414adf2bf903909989e155d441bf792d8002474eadbea2ab3d55664e573a0714cb4792d9ac07479f0dbaba352675fa1b17779fc9ad6c0b00f30

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