e54d7b6b9f1cc61d59519d5cac352c798158f63f834b663a035198a1e6685a8b

Analysis

max time kernel
121s
max time network
128s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02-03-2024 19:46

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General

Target

locales/bg.pak
Size

861KB
MD5

0e8005b17ac49f50fb60f116f822840d
SHA1

f2486da277de22e5741356f8e73e60b7a7492510
SHA256

50e4f6b9c387adf4baba3377c61d99326cc3987928d8d60b88d1ac29352820ea
SHA512

5df18bbeabd56e70d4c5a80dee5b7ce48259000665941634937e556e3b3a1c6403aa45c410f6f755607549c9dd35d722987b447c50efca51228ffeca4628756d
SSDEEP

24576:9MCo3qBsklYOdAs1axUYVbOAHi373Z5+3aAK5kVDV5uRumpod2JK5ITOuORx6QKq:9MCo3qBsklY/UYVbOAHi373Z83a1kVDj

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\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\	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\pak_auto_file\shell\Read\command	rundll32.exe
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
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\pak_auto_file\shell\Read	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 2024 wrote to memory of 2628	2024	cmd.exe	29
PID 2024 wrote to memory of 2628	2024	cmd.exe	29
PID 2024 wrote to memory of 2628	2024	cmd.exe	29
PID 2628 wrote to memory of 2908	2628	rundll32.exe	30
PID 2628 wrote to memory of 2908	2628	rundll32.exe	30
PID 2628 wrote to memory of 2908	2628	rundll32.exe	30
PID 2628 wrote to memory of 2908	2628	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2628
- - 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\bg.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
ebd761da22ead2266d055912e611a608

SHA1
c11be76a88e7bf50604a85848dfeb09b1d8f429a

SHA256
5dd4741a41b2404ac5bbfc3d66caee1399de247f313aeba2f1f5a4afe4c296b2

SHA512
1ab390eaaea378b72f72214987264ecf414dbfd32558fef60b45473fd30c240ad13c8435974a3961aee395c85ef2a3663a66b9dc27ad0da30f0e3704f281e8b9

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