f71b79e2877e4b056a147e65c476cc6c074eebb355909bd24ee9bcc2f9839a4c

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
22/05/2024, 12:27

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General

Target

update_perm.sh
Size

57B
MD5

661f41a030fafeea654c007035a7a25a
SHA1

488a3d05b802779c9cb03d74bd5ac1679fe1620e
SHA256

f71b79e2877e4b056a147e65c476cc6c074eebb355909bd24ee9bcc2f9839a4c
SHA512

5a3cf0d7451feca85327749861cacbefb9a50d2df9ff9ac0ea80daa00c13b60d69e58fc84c74b0df2605f8f2b1bb66d2a96282adb698e36ad058c8d7d7cda294

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-1-5-21-3627615824-4061627003-3019543961-1000_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-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.sh	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.sh\ = "sh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\sh_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2684	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2684	AcroRd32.exe
2684	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2544	2232	cmd.exe	29
PID 2232 wrote to memory of 2544	2232	cmd.exe	29
PID 2232 wrote to memory of 2544	2232	cmd.exe	29
PID 2544 wrote to memory of 2684	2544	rundll32.exe	30
PID 2544 wrote to memory of 2684	2544	rundll32.exe	30
PID 2544 wrote to memory of 2684	2544	rundll32.exe	30
PID 2544 wrote to memory of 2684	2544	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\update_perm.sh
1⤵
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\update_perm.sh
  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\update_perm.sh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2684

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
ba4e97f810fe83774fd5091107b9882f

SHA1
7653ffde1997a823fad8359b6366db0103715f31

SHA256
144aa2f2cb733e3582827d5051099ac1c4abb93c3f90ad965684b7077dd06d55

SHA512
dbad82886e57da93a14556efef2b1a663836ab97f86bd24a97c6d98a165b40c10c9749eeb464c9b6e0056302c1b935e3d65a1451b7014277eabcfe65fb384626

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