eb71dad7e3c7fc10f128a9f4c1aebdb527eb4192e3525010322559ca9b63d610

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
12/03/2024, 23:38

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General

Target

locales/bn.pak
Size

257KB
MD5

ee25e9cf28fdd35846d8a9b3c4220eed
SHA1

702342cc207ced1bb585195abcf263cbc4ea0069
SHA256

9994b9832bce803bee8c48a8176653099df7768074e3c54d09a18593376466b9
SHA512

2b703cd07bacc9f70e36844f148c980cb112a806b4ca11f692b9bbe6995fd5636eb9bdc84c5cfaf79790dbbb1ecf7cf2b61a7d6ff89311eb4907c586e20b7dbd
SSDEEP

1536:mJvNRPap2KJjyr98JMgqxpDwuDkQv+h2mWHc:uNhK9meL

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-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_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
2456	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2456	AcroRd32.exe
2456	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 2576	2916	cmd.exe	29
PID 2916 wrote to memory of 2576	2916	cmd.exe	29
PID 2916 wrote to memory of 2576	2916	cmd.exe	29
PID 2576 wrote to memory of 2456	2576	rundll32.exe	30
PID 2576 wrote to memory of 2456	2576	rundll32.exe	30
PID 2576 wrote to memory of 2456	2576	rundll32.exe	30
PID 2576 wrote to memory of 2456	2576	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bn.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2916
- 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:2576
- - 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:2456

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
defd6333e54e763f9229968eaa987e6b

SHA1
90a68a15b542006096d915b1599ccf74dbdb6f55

SHA256
5c4d28f9f4e8036e6f3ed55789e94e2c230aca5f9e68fd771f8946043af8481c

SHA512
f81d8bd723c2fcc73158b175f3dc248ea0c7740668fc412554d5e772e21089794ee6551dc1c47fb6a7a34e6a8e1b3c98e65b34f93e007075c6d4a496528a6863

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