88e5ade2ec431b3a7398b1f81dfc4ed6119a9e95657c29a9d6646fb396f3761b

Resubmissions

29/06/2024, 22:21

240629-19544s1epm 7

29/06/2024, 22:13

240629-145amaxfjc 7

Analysis

max time kernel
122s
max time network
130s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
29/06/2024, 22:13

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General

Target

chrome_200_percent.pak
Size

190KB
MD5

c37bd7a6b677a37313b7ecc4ff01b6f5
SHA1

79db970c44347bd3566cefb6cabd1995e8e173df
SHA256

8c1ae81d19fd6323a02eb460e075e2f25aba322bc7d46f2e6edb1c4600e6537a
SHA512

a7b07133fa05593b102a0e5e5788b29488cb74656c5ee25de897c2ba2b2a7b05c0663ade74a003f7d6df2134d0b75f0ad25e15e9c9e0969e9453b7fc40b9f8bb
SSDEEP

3072:ADQYaE/N6Mrvy/3JP29W2bg3yhPaafR54x5GMR+F44ffbdZnYw9p4AbIVGYoDd+y:ADQYaSN6svyd242k3yxgx5GMRejnbdZR

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-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_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-1-5-21-2737914667-933161113-3798636211-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.pak	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2596	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2596	AcroRd32.exe
2596	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 2828	1612	cmd.exe	29
PID 1612 wrote to memory of 2828	1612	cmd.exe	29
PID 1612 wrote to memory of 2828	1612	cmd.exe	29
PID 2828 wrote to memory of 2596	2828	rundll32.exe	30
PID 2828 wrote to memory of 2596	2828	rundll32.exe	30
PID 2828 wrote to memory of 2596	2828	rundll32.exe	30
PID 2828 wrote to memory of 2596	2828	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:1612
- 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:2828
- - 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:2596

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
73c0b5e7f2027fba1969adb93a3e51a2

SHA1
ed86f136d92216d89399d66a0ed9f6539b3b39bf

SHA256
7ad9b46d398b00c6403dc24f5ab54a8960da265e2025e9b5ba49c5677d31d6fc

SHA512
375ac7739420368cda6f0bc2faf595b7883a2c13f832c4723b134d323b07f098c69cfe8ce73cc55241f31a8f561d82eede6076f734a84a2f353a0a26c077470e

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