18ce929380ab15f9e9d23d156ff3cff56b94e33641a40379f57e7adc91130c3f

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09-04-2024 22:11

240409-131wtaea38 8

09-04-2024 21:43

09-04-2024 21:18

06-04-2024 10:55

06-04-2024 10:41

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06-04-2024 10:55

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General

Target

locales/af.pak
Size

327KB
MD5

c9312ff081e600e5fb4483b46ddd7c23
SHA1

1ff05a6a06cc73caf2d7545a3821d90c228ac0af
SHA256

b1987cdcbb8d76598422aa1739a246ed6690dc1b211f950fcbf2f040491ed7a8
SHA512

20c136b44770aa0e06259687656675a3e14310ea4e8ba214726b216bc1bcad6026267bf0132cbca642c0b5c49293386d0a1bd93ba40e1c33b648ae70416e8898
SSDEEP

6144:ZP+kgc+kVWlEvC9Z5D49Em7kLjB6oAYxjYgDbwxesB+xSK1IA3y25tHwDwv22iGe:ZPfclEvC2im4LjB6oAYxjYgDbwAVSK16

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-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_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
2592	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2592	AcroRd32.exe
2592	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 3004	2936	cmd.exe	29
PID 2936 wrote to memory of 3004	2936	cmd.exe	29
PID 2936 wrote to memory of 3004	2936	cmd.exe	29
PID 3004 wrote to memory of 2592	3004	rundll32.exe	30
PID 3004 wrote to memory of 2592	3004	rundll32.exe	30
PID 3004 wrote to memory of 2592	3004	rundll32.exe	30
PID 3004 wrote to memory of 2592	3004	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\af.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\af.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3004
- - 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\af.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2592

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
f21f22631e275df2212c6ea99c8a416c

SHA1
19dee563d154841ef0db6e537a17b5db5995eb06

SHA256
7aa9cd9eafa4229b937f25650635b483782fdade779f938b7defb915e25c804c

SHA512
7e73b5997b695464d5bd53ae8e2d0f1829e1209a2ebe86e91325475c12bbd67d3c2b6139a217743e557576e76176beb0119311c8816b414d0ded3f4d40891da2

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