249bdaa4332b3e1a3a2148d4fd587a42bd48615af556d1c72da51c55bb2ca697

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 19:02

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General

Target

locales/bn.pak
Size

216KB
MD5

80c804a82c617e7e0fc1e7f0df63290c
SHA1

a81f3ac6e92785e4c96e7dbd01fca8bfd446071a
SHA256

b4ed891e8b38452623348da12d325b52407446114cba664a8e25a26a7cfaf773
SHA512

919856917f185dcaa6204a0b990e49498ef59b72cf93f8b6da44785f4e889b70c0b05300ac15009260ddb36a8d4f06fee5d8c4796e60a43c2957ea436f7316bf
SSDEEP

768:fPjRXprzuB7CPIqPp2nKEZ3UzKoZ4CfrNuduY0Jri0CI58JRKgqZBiCYWY0PnxRB:fbbNp2KGCDjr58JMgqbxRRImv7hfUHm/

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-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_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-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2684 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2684 AcroRd32.exe
2684 AcroRd32.exe

pid	process
2684	AcroRd32.exe

pid	process
2684	AcroRd32.exe
2684	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1384 wrote to memory of 1452	1384	cmd.exe	rundll32.exe
PID 1384 wrote to memory of 1452	1384	cmd.exe	rundll32.exe
PID 1384 wrote to memory of 1452	1384	cmd.exe	rundll32.exe
PID 1452 wrote to memory of 2684	1452	rundll32.exe	AcroRd32.exe
PID 1452 wrote to memory of 2684	1452	rundll32.exe	AcroRd32.exe
PID 1452 wrote to memory of 2684	1452	rundll32.exe	AcroRd32.exe
PID 1452 wrote to memory of 2684	1452	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bn.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1384

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:1452

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:2684

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
7d5ae5843588c897b678f11480903404

SHA1
b0cce02b727d7871c01b7b516027fbddec8f13ca

SHA256
a401b806677b8a814ce7c48e305e2d3e4906ad00191bde7faa01329983bc7a80

SHA512
9025e9b5138ed0ff01db1a091b2d73f4ece9609d978410601d8f449abbcb3b1ff0123ce69777a96a7aad1de746dbed6c17aeaf22a18139e044d7890fcf210a3d

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