a8d5126a1eafba06775bf2eaaf74b52873f15ac8c35a3603517511fcc6e1eaea

Analysis

max time kernel
842s
max time network
847s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 20:06

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General

Target

locales/pl.pak
Size

543KB
MD5

7d822c9fdacb73d39ea98102dec09fee
SHA1

1e3117cc8f465d0724bcd36df117f65354d8ecc0
SHA256

055510218bdc502f8f4b9c9cb71460e75af6860dd6fdd4ea8dc7662d39fa21c4
SHA512

1a2ef9746341c1f411de15942e43d297ac0c762b2cc8cbdffd9cdfcc510027b7e7a439c28abd582359f1565c6adc8a4f304d934d392f023bc6a73896068fc3b4
SSDEEP

12288:XWCtr/9jWoOB/kheU/AGfQfS6HAcbUdP1CUd4e3m/UbMAmw1QhisB5W/N4VckJ:GO9A8zM41Qhn5eE

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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2720	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2720	AcroRd32.exe
2720	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 2628	3020	cmd.exe	29
PID 3020 wrote to memory of 2628	3020	cmd.exe	29
PID 3020 wrote to memory of 2628	3020	cmd.exe	29
PID 2628 wrote to memory of 2720	2628	rundll32.exe	30
PID 2628 wrote to memory of 2720	2628	rundll32.exe	30
PID 2628 wrote to memory of 2720	2628	rundll32.exe	30
PID 2628 wrote to memory of 2720	2628	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\pl.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\pl.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2628
- - 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\locales\pl.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2720

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
e05c7e43296cdf1761db0b3e276829d9

SHA1
22e736d5314c3134c735771a2f1caff9b51dbad4

SHA256
e3cda8b72179e2059c60d8bde1c48a58876be162a3ade75fe9b15569e1db88fc

SHA512
32a37348b1dda6ec042031b374dbc83ce3782babefde07e43348a41c32f26fc7da6c8b1d04be8f1b671628439920a6151a0db6d498d24f64ca50168fcb2e6a0a

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