61449feab7bb5877fe19d52c28720d83e3fbfa4a9ee64a380b649a9b1cea8a86

Analysis

max time kernel
117s
max time network
133s
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/bn.pak
Size

1.1MB
MD5

c8173f0cc63ca9e02c07abec94892b53
SHA1

2688b199cc40bb2082247fa451eac1304608e48b
SHA256

e6adcfb4f3b3bccd4a27edadc168b503c36551cd6b27fb24043efeb21f691ce5
SHA512

3d2317430722dc15c5d938fa55235af1caa03dcff7a574b44d37d89e7cf2c94dd2e84518b3eeca4a5a8dbec1b99d94aed97429aaf55c63998002d50ce9cb5019
SSDEEP

3072:HPvKTlIymMTAKhwg8KgMokBw20kzhY0/ukfe0/Q8hhar6j7dkjBbJrlD+B5rwDlo:HPvtMTAKhwlFpKAShhG6j7wBb85mlo

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
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_auto_file\shell\Read	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	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
2576	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2576	AcroRd32.exe
2576	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2712	2204	cmd.exe	29
PID 2204 wrote to memory of 2712	2204	cmd.exe	29
PID 2204 wrote to memory of 2712	2204	cmd.exe	29
PID 2712 wrote to memory of 2576	2712	rundll32.exe	30
PID 2712 wrote to memory of 2576	2712	rundll32.exe	30
PID 2712 wrote to memory of 2576	2712	rundll32.exe	30
PID 2712 wrote to memory of 2576	2712	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bn.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\bn.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2712
- - 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\bn.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2576

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
13246d2c5c18d197c04b0f545d50a21b

SHA1
7c248660666147c77506b021d365b014b2429c5b

SHA256
d26e7d976f04d18dfbefa34f256aa68317a0942c61a8dad51f17391df8399576

SHA512
37adc16173e8464f1d92b75cd8cc0ed5e358e489855b50ca9577911e96010c3a5bfb442250e44b344d12339017ede93181a82a3e290d5c1bf1e96edc19dca1a7

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