479f024e77b53300da8dd0e0d0243dca32af5c1aefaa2f254127bc59f2901d93

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
08-07-2024 11:24

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General

Target

locales/am.pak
Size

551KB
MD5

952933d2d388683c91ee7eaa7539e625
SHA1

7a0f5a10d7d61c32577c0d027db8c66c27e56c7d
SHA256

55357baf28716a73f79ac9a6af1ae63972eb79f93c415715518027fc5c528504
SHA512

5aa5ef0ed1da98b36840389e694dc5dcef496524314b61603d0c5ee03a663bb4c753623fb400792754b51331df20ac6d9cf97c183922f19fc0072822688f988d
SSDEEP

12288:WcWln6HuPPL8xJTgWHsEaYM5g9yaAVmHukPQyx30jH8+I:WR6YL8xOWHbaYM5g9yaAVmvPQ+

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_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-1-5-21-3294248377-1418901787-4083263181-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2712 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2712 AcroRd32.exe
2712 AcroRd32.exe

pid	process
2712	AcroRd32.exe

pid	process
2712	AcroRd32.exe
2712	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 3012 wrote to memory of 2652	3012	cmd.exe	rundll32.exe
PID 3012 wrote to memory of 2652	3012	cmd.exe	rundll32.exe
PID 3012 wrote to memory of 2652	3012	cmd.exe	rundll32.exe
PID 2652 wrote to memory of 2712	2652	rundll32.exe	AcroRd32.exe
PID 2652 wrote to memory of 2712	2652	rundll32.exe	AcroRd32.exe
PID 2652 wrote to memory of 2712	2652	rundll32.exe	AcroRd32.exe
PID 2652 wrote to memory of 2712	2652	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\am.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:3012

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\am.pak
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2652

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\am.pak"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2712

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
a83593dd3b86fa3f9da1779e7d93ec3a

SHA1
b7187483ca6823595ec12e08ebd51ded2f7652ba

SHA256
3b9004aa159984f620e4887a7de7b9d427f6f5a23d7ce380df2958f83be004f7

SHA512
4a7ea787a0b7e66cf77df5507ae79193812fe19b4fa4fe9d433b554f25ca403823663d54ab7486aa8fc0e066c5617ba4e1750ce028559febef4c73414f90d315

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