61449feab7bb5877fe19d52c28720d83e3fbfa4a9ee64a380b649a9b1cea8a86

Analysis

max time kernel
121s
max time network
130s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-02-2024 15:23

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General

Target

locales/ca.pak
Size

524KB
MD5

a96207d66f2a66bd9716a80ccaeb6106
SHA1

e7fe4a3cf0d681eb9fc6aa8707bda5e41d0be9d0
SHA256

61c1c2a1aad4d38538ac51f8dff57f3319baa9c5287ea5113ae6fc486cf8af3e
SHA512

c03b97c29ad57f54d3cfdcc3ae0e22e0042bbb792f442dc6ae3f29d202e7afdabf6b2f17925a5944fbb1b39da4f0ae181c5bc14e175ae2b3cb8499b318cad15b
SSDEEP

12288:BLUzxDVtg7kREeopxA3n5PqF4N3Mw2juwHzejm0t3lvq8+x9sfR+IsjcmlLEYjCa:2zxDVRY6vR6QZIMN7vsyL5fGjiu

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-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_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
2908	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2908	AcroRd32.exe
2908	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 2620	1964	cmd.exe	29
PID 1964 wrote to memory of 2620	1964	cmd.exe	29
PID 1964 wrote to memory of 2620	1964	cmd.exe	29
PID 2620 wrote to memory of 2908	2620	rundll32.exe	30
PID 2620 wrote to memory of 2908	2620	rundll32.exe	30
PID 2620 wrote to memory of 2908	2620	rundll32.exe	30
PID 2620 wrote to memory of 2908	2620	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\ca.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1964
- 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:2620
- - 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⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2908

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
2128e383ca6a402e862b987821ef77f7

SHA1
7bbe7eeb444a63509d64354eda488bb0e260a156

SHA256
4c59542163f4522cfd671d2a3ad8e2dac185c452bf954adf7249a2db36701328

SHA512
9aeab53a2fae35c0725b79e9fdf4dc6ad08a09db0ca9b4bb13b9f49f99139e996288c2b242da5af1c414c1c8d58a78b6f454180b61641a0e1e24e2f57b52f7aa

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