87fb7d3b0ecb9a34705b9f25e5e3b279b567be516fb11e1a8386ac02f1ddbe61

Analysis

max time kernel
94s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30/09/2024, 15:49

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General

Target

Uninstall.exe
Size

85KB
MD5

24c35fb186cd133bb79e64d869692d1f
SHA1

cb7e156a753c853f63fab7e84d5ad20377a8113c
SHA256

4c53fe1d4959a50e64cca049b7572adb3732adeea2a1e6941ac097caaf1e9cbc
SHA512

1ae3afc0404526e31b96cb69d56bc5e9805ca942d93d9af43de55944dfbc31aaaec236dc3e2d1d641bd847041a267b723b50587ab7fb19431023a376d0112f02
SSDEEP

1536:5pgpHzb9dZVX9fHMvG0D3XJgcWYAUsLtBKwaE3IsYW6rkC0e0qm:zgXdZt9P6D3XJZWYM7KwaE3PCT0qm

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2612	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 2 IoCs

installer

resource	yara_rule
behavioral22/files/0x000700000002348f-4.dat	nsis_installer_1
behavioral22/files/0x000700000002348f-4.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 2612	3396	Uninstall.exe	83
PID 3396 wrote to memory of 2612	3396	Uninstall.exe	83
PID 3396 wrote to memory of 2612	3396	Uninstall.exe	83

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:3396
- 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⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2612

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
85KB

MD5
24c35fb186cd133bb79e64d869692d1f

SHA1
cb7e156a753c853f63fab7e84d5ad20377a8113c

SHA256
4c53fe1d4959a50e64cca049b7572adb3732adeea2a1e6941ac097caaf1e9cbc

SHA512
1ae3afc0404526e31b96cb69d56bc5e9805ca942d93d9af43de55944dfbc31aaaec236dc3e2d1d641bd847041a267b723b50587ab7fb19431023a376d0112f02

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