30091faafd62ea7ba9868db2ee575dab98fd126a78d39590f57ea7b38b20d966

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
22-08-2024 20:27

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General

Target

locales/ca.pak
Size

538KB
MD5

bd846046383d64073da6eb192f5cddb1
SHA1

6dd4bfb982101ecafc14eb35834caa1fe5b1e3f5
SHA256

1dca9a7fcd850aecd48288999b436ff7e70cd4a96f47b40319759a800fb8eefa
SHA512

521ddf6e8fb444b911212501825392562af14cfb5b31a80707fdeffb13c8afb04852b0e3f7e3363a1c3a37c5c35bb1cbe84b458e14e30b5e8d8cb00a6a349ce0
SSDEEP

12288:WM49O9Y7BREeApk73K5PqF4N3Mw2juwHzejm0t3lvqbETX9/RSHhIsjcmlLEYuCy:+9aWVzaBRn1WDMN8UpOO5z/ras

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2784	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2784	AcroRd32.exe
2784	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 2808	1752	cmd.exe	31
PID 1752 wrote to memory of 2808	1752	cmd.exe	31
PID 1752 wrote to memory of 2808	1752	cmd.exe	31
PID 2808 wrote to memory of 2784	2808	rundll32.exe	33
PID 2808 wrote to memory of 2784	2808	rundll32.exe	33
PID 2808 wrote to memory of 2784	2808	rundll32.exe	33
PID 2808 wrote to memory of 2784	2808	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\ca.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\ca.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2808
- - 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\ca.pak"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
340505dcff417961d8a7aa6bf3d6daa3

SHA1
d1cb2ea95ea14b02f4da38749aa528771fdef31f

SHA256
9882ddaceac4c9024dbb48bb1507bf35f329cf0cd42af8f1c1fd6bd6a7e43685

SHA512
ba93d418717076e01279f48efd4585e92ce47c0c5aefee2d4f88a0f1f98b43bcfe7d275408a70a6db1b9af9f15d8e88e0387225404cac56384eb4accd3516d07

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