a3675de138b620568a924ecb30b08159267dbba29c9eee83aac48bdd03aef435

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
21/05/2024, 05:26

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

start.sh
Size

285B
MD5

d482bc706b44f18c860b0713deb21eb0
SHA1

dffb43421cd45fc9c808c7683267f228e8a64aa7
SHA256

a3675de138b620568a924ecb30b08159267dbba29c9eee83aac48bdd03aef435
SHA512

49b1d80023e68420cf04aea064003dacbc85699677017c9bc84eea6a136a7551d1d9fdacc712a700c9bfc98289a37fff6b8a64720c523bbc573d4a1aeb63b137

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-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\sh_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.sh	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\sh_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\sh_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\sh_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.sh\ = "sh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\sh_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\sh_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
3024	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3024	AcroRd32.exe
3024	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 1944	2416	cmd.exe	29
PID 2416 wrote to memory of 1944	2416	cmd.exe	29
PID 2416 wrote to memory of 1944	2416	cmd.exe	29
PID 1944 wrote to memory of 3024	1944	rundll32.exe	30
PID 1944 wrote to memory of 3024	1944	rundll32.exe	30
PID 1944 wrote to memory of 3024	1944	rundll32.exe	30
PID 1944 wrote to memory of 3024	1944	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\start.sh
1⤵
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\start.sh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1944
- - 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\start.sh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:3024

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
729cafa6c0693c08f21f73bdb6ea2cfe

SHA1
dad70017eb523c8395a1c5dfbbcad199d8bd3098

SHA256
22baab3f8b4dde59c7ec91581b238601c043ceaac17576259081ffde030cf7e6

SHA512
91a422d7b4e03ce1d4b2aeb4be6135bcb8e411325bc7a8ccfa725b9cde5e683747db79ea66831fe2ab00a7cf751c01e25fe332cd923e6d217181481749d82287

Download Submit