e54d7b6b9f1cc61d59519d5cac352c798158f63f834b663a035198a1e6685a8b

Analysis

max time kernel
122s
max time network
147s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02-03-2024 19:46

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General

Target

locales/ca.pak
Size

524KB
MD5

a96207d66f2a66bd9716a80ccaeb6106
SHA1

e7fe4a3cf0d681eb9fc6aa8707bda5e41d0be9d0
SHA256

61c1c2a1aad4d38538ac51f8dff57f3319baa9c5287ea5113ae6fc486cf8af3e
SHA512

c03b97c29ad57f54d3cfdcc3ae0e22e0042bbb792f442dc6ae3f29d202e7afdabf6b2f17925a5944fbb1b39da4f0ae181c5bc14e175ae2b3cb8499b318cad15b
SSDEEP

12288:BLUzxDVtg7kREeopxA3n5PqF4N3Mw2juwHzejm0t3lvq8+x9sfR+IsjcmlLEYjCa:2zxDVRY6vR6QZIMN7vsyL5fGjiu

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_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-1-5-21-3787592910-3720486031-2929222812-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2552	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2552	AcroRd32.exe
2552	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2560 wrote to memory of 2432	2560	cmd.exe	30
PID 2560 wrote to memory of 2432	2560	cmd.exe	30
PID 2560 wrote to memory of 2432	2560	cmd.exe	30
PID 2432 wrote to memory of 2552	2432	rundll32.exe	31
PID 2432 wrote to memory of 2552	2432	rundll32.exe	31
PID 2432 wrote to memory of 2552	2432	rundll32.exe	31
PID 2432 wrote to memory of 2552	2432	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\ca.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2560
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\ca.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2432
- - 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\ca.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2552

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
aa5a04d7b828034ae0bde0360f483684

SHA1
cd3fa9744fa0ade42f1919f5a08e753af7ac253f

SHA256
200dc852558a446ab35e546dce4e712f5a88b8cbb2914dd065f1d3b38befed5e

SHA512
fd7ad190329ee302d498f7f6112607444e48e30a80af5a897016200518252db8c5559a7489341a53cc9b4005427b7ca0cf7c3de2eccb668f2dc339bbdc0ab16c

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