3f50ce0474094a6774673b72faa456bf2fcda5830edb0cc2b00aba5c08611585

Analysis

max time kernel
429s
max time network
1155s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/09/2024, 15:30

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General

Target

uninstall.exe
Size

40KB
MD5

8c20cd51867103de604603ab46c869da
SHA1

eecd7384c9eed0f90ef78678131073a284c28afd
SHA256

5f3dcf97cf54e0b58cb0fe1633d72b5f0a428e7d2045faa41c9caf70791f87dd
SHA512

16a267f4a74addc3deb34dcf0f3e42a8ea724c26164c788dcc8bec8f44682251f8b4ea1facb23b770a264dc6e1eccea4e52af99ae61bb46f41e1f52efc6969bd
SSDEEP

768:dHJd0TpH2+bQ2dUWVX9Hfv1JMWmtLEJOyuBxG0D3mjfS3XJhJRnNA:dpgpHzb9dZVX9fHMvG0D3XJfA

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4716	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
4716	Au_.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral28/files/0x0002000000022a83-3.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 4716	4784	uninstall.exe	85
PID 4784 wrote to memory of 4716	4784	uninstall.exe	85
PID 4784 wrote to memory of 4716	4784	uninstall.exe	85

C:\Users\Admin\AppData\Local\Temp\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
40KB

MD5
8c20cd51867103de604603ab46c869da

SHA1
eecd7384c9eed0f90ef78678131073a284c28afd

SHA256
5f3dcf97cf54e0b58cb0fe1633d72b5f0a428e7d2045faa41c9caf70791f87dd

SHA512
16a267f4a74addc3deb34dcf0f3e42a8ea724c26164c788dcc8bec8f44682251f8b4ea1facb23b770a264dc6e1eccea4e52af99ae61bb46f41e1f52efc6969bd

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