3f70da063d48c6a6921fee36436a7ca0078c499746c43c575d17476c7aeb19e3

Analysis

max time kernel
118s
max time network
138s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/05/2024, 19:52

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General

Target

locales/cs.pak
Size

494KB
MD5

1101c784521a550b0561b363722086de
SHA1

838f2bfe3432b87b950a2ec5d9862d2f58fde3e5
SHA256

cc6ff937d1c9fec4634db4e2f6c0718d2606fe2d5d25addf1314e110c5b78772
SHA512

eca3ce2075d3c920116c9e34957631e0617a869467bb76b09873ae96f7803f20032a6dd0a0f785f9e59dcfce3a4ccecdab2d445a860bee20d42e140b45e74089
SSDEEP

6144:MI6vfxlz7skzhZZD7ZUVNzrAMnz15/8VEgkNOQw3SBbY8Qm:9mbz7sobnZUVtRz15/8VEzNOl3SX

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-1-5-21-330940541-141609230-1670313778-1000_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
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\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_auto_file\shell	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	rundll32.exe
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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2524	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2524	AcroRd32.exe
2524	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 2664	1888	cmd.exe	29
PID 1888 wrote to memory of 2664	1888	cmd.exe	29
PID 1888 wrote to memory of 2664	1888	cmd.exe	29
PID 2664 wrote to memory of 2524	2664	rundll32.exe	32
PID 2664 wrote to memory of 2524	2664	rundll32.exe	32
PID 2664 wrote to memory of 2524	2664	rundll32.exe	32
PID 2664 wrote to memory of 2524	2664	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\cs.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\cs.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2664
- - 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\cs.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2524

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
923fb7934e481370e31c896c3d1c9f89

SHA1
dd8328b07225dbb5aee957a06507bc91b196b67a

SHA256
014887b4b08b6d8e6b0dc1bed1b439f8180663ba5ca8aa3539c2ed0f5f7ae7ee

SHA512
dedf6a7e1de2ddcdf700fc5613dc12678dfa278d3cd62fa4636ced7221be97bbf2a88df342a0fa78912a3ca0aedaee918ffd4fd543e23a2ba564a4eb3f8d64d6

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