eb21a698101b0781187b0df85ea6683043e36d5e4229dc692b0a2e410c8adc6e

Analysis

max time kernel
119s
max time network
140s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/04/2024, 13:16

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General

Target

locales/en-US.pak
Size

391KB
MD5

c9c2abcb04e1ad5f1a20244da8d595a8
SHA1

89ca81da21900074a5ccdcdc852768277b2b620b
SHA256

0364c73f320e441b03cb2afcaaca3ffbfac51a3559dcd0ff99a1accf82c7f762
SHA512

96bbf21174f56a111a2fc6ec024ab2f143945306797e77d773367a7fad42b7828ebb7b08d0dab76858d9fa340bf3205be403bc53df9e5e4e390058c94a751ffd
SSDEEP

6144:1InAdQi32OqOMWvX3BO4XMP9ehWMIfaYRGrc55FSMnC/M1UwB:1IAdQqOONvXMyWMGv57SoUwB

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-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2752	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2752	AcroRd32.exe
2752	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2776	3028	cmd.exe	30
PID 3028 wrote to memory of 2776	3028	cmd.exe	30
PID 3028 wrote to memory of 2776	3028	cmd.exe	30
PID 2776 wrote to memory of 2752	2776	rundll32.exe	31
PID 2776 wrote to memory of 2752	2776	rundll32.exe	31
PID 2776 wrote to memory of 2752	2776	rundll32.exe	31
PID 2776 wrote to memory of 2752	2776	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\en-US.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\en-US.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2776
- - 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\en-US.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2752

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
2d05ee4bbaecae363b5d85c44ba367c7

SHA1
d0cf06c7e5456d3e31dcbf9fcee607c2561771d2

SHA256
d404f6a6f67203fa38530dee451be54b7466d7ca105c7ad27e0bef64df60e6af

SHA512
5a3234a3ed85c191293b0a35264083e07baadb1571c902d8e41d11065587b8bf3184d1fd934a90fe02ed626b50a47fb019ac41a8732fad71272f9c4254654620

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