4eed5863f1a259b619e6819691364f97cb5487b05503c44a8ac782f8668efe40

Analysis

max time kernel
18s
max time network
18s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13-01-2024 19:55

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General

Target

tpd-keys.pyc
Size

2KB
MD5

cfea6c1de7042354aed4fb315b49e910
SHA1

4333eb7fd7fda8aa2f0d7165ba06014e501127f2
SHA256

73602bbc2cb052a86fc6efbd28fed0b854a2330ab049e1951539ed2283e3fbd9
SHA512

40d9dfc5c505b4b1bcc507c58345181dd991422bcf74b0972ee09832df87529e5325bd2399a4034b7d1352814d6c934b95635ad22673c30e9041d0ad6a911828

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-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2652	AcroRd32.exe
2652	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2612 wrote to memory of 2372	2612	cmd.exe	29
PID 2612 wrote to memory of 2372	2612	cmd.exe	29
PID 2612 wrote to memory of 2372	2612	cmd.exe	29
PID 2372 wrote to memory of 2652	2372	rundll32.exe	30
PID 2372 wrote to memory of 2652	2372	rundll32.exe	30
PID 2372 wrote to memory of 2652	2372	rundll32.exe	30
PID 2372 wrote to memory of 2652	2372	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\tpd-keys.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\tpd-keys.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2372
- - 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\tpd-keys.pyc"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2652

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
daf23c0ac8bea162a4cc0afd457ab26d

SHA1
892132713a83526c708cec12cbc054f3ff365ff1

SHA256
683483cf8ce7cf421d712b787bd6ee5eaac2019a37af02c4d9301f6760c2f26b

SHA512
a0c7723f5b77a873d6378ca193af90cc92c4a9cdcc6050fd750353de603f77c2613ea666fc004913d5ca65c4c0fccd1361c0f74b0d3706823a9536623a860696

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