f8a2c7bf6611cc965e76f1286fc460ec47f3d7e4353877716417cd8b553b2667

Analysis

max time kernel
1565s
max time network
1570s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03-02-2024 00:54

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General

Target

locales/ru.pak
Size

214KB
MD5

a953b6e38d0e545575b842fd46292755
SHA1

17e15c48ef172375b6d7f26a16ad0332ecf85c84
SHA256

81d1befb25506720d1f336b18a586250ef1c4b389f58eb573784a0ab585f92d3
SHA512

b227f9ab64f0c22080708ffc4ffbba51cf022ee37a1ce9cd82dd06dd58ad12292d6a274badf8f1f27e5f42dcc5b9523e3fee254c02abd1d0844be61a3a713634
SSDEEP

6144:gEaX+/KuMHVOorn+T52wdOrsL489QgIv7RW9o3MfZyLv9YxTYDdVxPA:gEaX+/KuMHVOorn+T52wdOrsL489QgIa

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-1-5-21-3601492379-692465709-652514833-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_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
2652	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2652	AcroRd32.exe
2652	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2804	2496	cmd.exe	29
PID 2496 wrote to memory of 2804	2496	cmd.exe	29
PID 2496 wrote to memory of 2804	2496	cmd.exe	29
PID 2804 wrote to memory of 2652	2804	rundll32.exe	30
PID 2804 wrote to memory of 2652	2804	rundll32.exe	30
PID 2804 wrote to memory of 2652	2804	rundll32.exe	30
PID 2804 wrote to memory of 2652	2804	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\ru.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\ru.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2804
- - 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\ru.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2652

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
4d7d0dc4c02ea1605ad04832a46fd3bd

SHA1
21c1342d1b36a54a6b41256d9bbf9b4fc38925f7

SHA256
5c0ed0f5677880567014ccc3594954ba7ac22bc821301fe5e983d6dbe92d6568

SHA512
f1dd5b94f4396bc58cc4e4becb6730510fd30a10593220442b7d70a74889ee263fbf8bba423cb48f780eab136e6ecb4c64d6e1bbcfcf4b175f58ad4f041636f4

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