74b8c6ca7e6938a8f17791223de22e972522c2375f7f11ace86def80c2ff39df

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/05/2024, 11:58

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General

Target

start.sh
Size

24B
MD5

2c1e115a952704656dac0865712e93f1
SHA1

04793ffc4a7ba101c646c8691884b65bd75b1f47
SHA256

74b8c6ca7e6938a8f17791223de22e972522c2375f7f11ace86def80c2ff39df
SHA512

f248fe1ec725b1bfaa4f519d241ba4ea34b15c7f671ed9adcee5d663cd23d5af8b0b7b5f2f50f1980b922e2ed2510b644717981d50d4faeb42b098955cce9dcd

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-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.sh\ = "sh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\sh_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\sh_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\sh_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.sh	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\sh_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\sh_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\sh_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2624	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2624	AcroRd32.exe
2624	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2492	2004	cmd.exe	29
PID 2004 wrote to memory of 2492	2004	cmd.exe	29
PID 2004 wrote to memory of 2492	2004	cmd.exe	29
PID 2492 wrote to memory of 2624	2492	rundll32.exe	30
PID 2492 wrote to memory of 2624	2492	rundll32.exe	30
PID 2492 wrote to memory of 2624	2492	rundll32.exe	30
PID 2492 wrote to memory of 2624	2492	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\start.sh
1⤵
- Suspicious use of WriteProcessMemory
PID:2004
- 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:2492
- - 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:2624

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
c0e9bbdc0c617aebcd4865256bf2e081

SHA1
eab26b8604d4888b3e5feffff232441c0c066b04

SHA256
03e67e175003b6bbd5cc85fff913122ffea533fff24f300a41dba4d7c16141e1

SHA512
4e763a649a209b361a5055c1f691be7599295249af4a932aee855cfddae4692da13554ce2f1bbcd48dca862ca2e99fcf8ec2f111abde39b811e4832a1ff0f607

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