fe9ef92c748a292553f5a2b93fae0154750581642ececf5671ea68013ee51066

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
02/02/2024, 16:15

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General

Target

Setup/locales/fi.pak
Size

338KB
MD5

aac0554a39bb1ae91e2ed4246e04c30e
SHA1

031785024765eda1534fd9504eccbe1b471ae618
SHA256

df8cefa4831fc2fdf817dd6d49a6373edee4f51f23cf990c690e72ce348f69bb
SHA512

a6afc9464047c75157dcb8ece086c1c5bf4dccb48d33da24e35c43110f300cfea503c4cca093f3d4bcc7a0fdcb306138da5be288ef646881b625751e40d93689
SSDEEP

6144:3pR/2jxpvwhnVgQsm3aOE/8aCEELsR5w5jSH4EJ18GWU/8nZRuX1wr2:vOnvoG8a35w5+H4EJ18GWU/o2

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-1-5-21-3470981204-343661084-3367201002-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_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
2628	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2628	AcroRd32.exe
2628	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 2580	2032	cmd.exe	29
PID 2032 wrote to memory of 2580	2032	cmd.exe	29
PID 2032 wrote to memory of 2580	2032	cmd.exe	29
PID 2580 wrote to memory of 2628	2580	rundll32.exe	30
PID 2580 wrote to memory of 2628	2580	rundll32.exe	30
PID 2580 wrote to memory of 2628	2580	rundll32.exe	30
PID 2580 wrote to memory of 2628	2580	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Setup\locales\fi.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Setup\locales\fi.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2580
- - 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\Setup\locales\fi.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2628

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
e12dcde0dac56945b86a7c216e2b53e3

SHA1
e64067606904b19effa68ccafc83075e62c36319

SHA256
3d25c355858dccad26d8307b9654e87a1baa7aee8fc2c75a415e968470a7c9f6

SHA512
6f0c5661861ed5f879e2e277ad43853117f4781a1f051ada0bda9d782ffd2fdcc22393dbfb71fa72e3c86d639d6e5bd6230c784fe147b9305176eddd800de4c7

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