4113ee678970bd438e135454ca93f5004b531ebeae76d29b49eb5c32620f5e29

Analysis

max time kernel
119s
max time network
132s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 13:10

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General

Target

locales/es-419.pak
Size

515KB
MD5

5abcb35738fcb4217888925eaa8f943b
SHA1

a195fb95343d2fad6ec79a80efc848497f2b0083
SHA256

51ff321a6612d56daabc7874ec306680f610c391ff4392c61a59d3ac2a3380b5
SHA512

1272ddc6310fa9135e327111c6426fff39187df07d770b9fb366d6a87922e5ee1dd81cc676b17f8ed6370b786badf92c850910674ef5dadcef3bc7987ea62d3c
SSDEEP

3072:Ln1o/wiAUJHOkNejz28CU1g6Cjnp4EcO37Su8pnYl4lbjK2oE1AozsoLhWRR5BXF:LnAwlsejlHDXzpnY8KJ5BXmLFmQIzL5

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_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-1-5-21-3787592910-3720486031-2929222812-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2236	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2236	AcroRd32.exe
2236	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 2588	2200	cmd.exe	29
PID 2200 wrote to memory of 2588	2200	cmd.exe	29
PID 2200 wrote to memory of 2588	2200	cmd.exe	29
PID 2588 wrote to memory of 2236	2588	rundll32.exe	30
PID 2588 wrote to memory of 2236	2588	rundll32.exe	30
PID 2588 wrote to memory of 2236	2588	rundll32.exe	30
PID 2588 wrote to memory of 2236	2588	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\es-419.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\es-419.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2588
- - 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\es-419.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2236

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
750442ea07dbca8446b3117146cdfd18

SHA1
b96fee16d5e082d850342d79c436496245d698e4

SHA256
1d5d1be75e8b1b4d4c6d5053a212f739a2d4774b3357a706cd7fe713839cd8ec

SHA512
c0b9389e6093fbf0a6f7ccec38e7384225212463aabb73a6c5d3b3c83a11087d084a79c0c9cfa5a964693cb087fa6c281dcdce60320fc41f3a327cc6cba7a5b7

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