71d55286d6ff61f51b9a5ffb0eaf05dfaf996dd544df0655ee333f47630e3a9b

Analysis

max time kernel
118s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-02-2024 04:29

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

chrome_200_percent.pak
Size

174KB
MD5

d88936315a5bd83c1550e5b8093eb1e6
SHA1

6445d97ceb89635f6459bc2fb237324d66e6a4ee
SHA256

f49abd81e93a05c1e53c1201a5d3a12f2724f52b6971806c8306b512bf66aa25
SHA512

75142f03df6187fb75f887e4c8b9d5162902ba6aac86351186c85e5f0a2d3825ca312a36cf9f4bd656cdfc23a20cd38d4580ca1b41560d23ebaa0d41e4cf1dd2
SSDEEP

3072:YDQYaEqQZUYUJP1N3/nXCWZQCPxBVrfR54x5GMR+F44ffbdZnYw9p4AbIVGYoDdR:YDQYaRyY1NPyCt9gx5GMRejnbdZnVE6j

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-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell	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\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
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	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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2576	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2576	AcroRd32.exe
2576	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2544	2084	cmd.exe	29
PID 2084 wrote to memory of 2544	2084	cmd.exe	29
PID 2084 wrote to memory of 2544	2084	cmd.exe	29
PID 2544 wrote to memory of 2576	2544	rundll32.exe	30
PID 2544 wrote to memory of 2576	2544	rundll32.exe	30
PID 2544 wrote to memory of 2576	2544	rundll32.exe	30
PID 2544 wrote to memory of 2576	2544	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\chrome_200_percent.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\chrome_200_percent.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2544
- - 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\chrome_200_percent.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2576

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
492fe505afb15afefe5bbaad9765547a

SHA1
40fce64b10cff554bfd858a9df691dc8c7d99d6e

SHA256
7ee54024ffffec66bf6d69cde7667e0d43e163135b56591ffaa606e082487d05

SHA512
b6e899f9d8995a3f6092763d896c1db418068357ac367a32b4cb3a03dd9e1110eb7a604583352bdde24bb99bfcf1d3ce64fe8905adb0eb92746cdf03eb4d16c4

Download Submit