b625765ce751d3a56674fee9215ba69777a3e7ab37e6cbcf418c918de423c0a3

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11-09-2023 22:02

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General

Target

base_vertex.sh
Size

188B
MD5

8ca61f9c38649d70235b0d9b9fd2d8e4
SHA1

4c3d34710f1d951ac371f88657cab92977da8b32
SHA256

87fd875bdcb0e0ef9a91a350dd536066a86b22d6b16cd1d7398639040c5619d8
SHA512

f137b0df7b7511d0b73c9cc67ca1b1b76dfc333199f598c22e8e6e651f4d180daa1fcb39c3d857ef907b1052508d7e125c8a2dae9527cffcfc120b97edc78fcf

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-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\.sh\ = "sh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\sh_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\sh_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\.sh	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\sh_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\sh_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_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-1-5-21-607259312-1573743425-2763420908-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\sh_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2732	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2732	AcroRd32.exe
2732	AcroRd32.exe
2732	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 2984	1888	cmd.exe	29
PID 1888 wrote to memory of 2984	1888	cmd.exe	29
PID 1888 wrote to memory of 2984	1888	cmd.exe	29
PID 2984 wrote to memory of 2732	2984	rundll32.exe	30
PID 2984 wrote to memory of 2732	2984	rundll32.exe	30
PID 2984 wrote to memory of 2732	2984	rundll32.exe	30
PID 2984 wrote to memory of 2732	2984	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\base_vertex.sh
1⤵
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\base_vertex.sh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2984
- - 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\base_vertex.sh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2732

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
e6e6380522dd32e72bdc60c188c34a03

SHA1
0e011b23163ab4535902c4f870853abbc8ed183b

SHA256
abb3ea7b561b5f4c000849094f592e72ed6cfb6c19415a3676c482e6623a5970

SHA512
17195f72091bb72b6ad5f580b366952c78fe631b69b86a5a64088ef143e10e5daf42a03425288b39a329dcde003eed4964e7d1b87c66332a852a45b94d9ee5d1

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