f1a35e14ac13a6e686195edb94f749f4b256e74f38c03e450535765a179efcf7

Analysis

max time kernel
94s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 22:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Uninstall.exe
Size

143KB
MD5

20ac6f15f2febb1d632e3a41839f8743
SHA1

2bf36edf070478fa037c6c6877f1e1bd6c40a886
SHA256

5ff4e90901b9038ab4adbb00a6c678103cfc0e96bf1b9e1b4741ddfbf7007d8c
SHA512

638b1fdb39cc9f68caba23f2a3b324c89944c6db6d093f1d645771f8eff9b5988e890075ffd14bf9d08b857e159e003a397f00d79749384486ede064258b50cb
SSDEEP

3072:waF6FISxuJ8JUsxfX9KVVYjPNHxc5mG5lcuTiSNzZT3:pOMxsbqYj9xc555lcsF3

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3732	A~NSISu_.exe

Loads dropped DLL 1 IoCs

pid	Process
3732	A~NSISu_.exe

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	A~NSISu_.exe

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral20/files/0x0008000000023497-4.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 3732	1748	Uninstall.exe	83
PID 1748 wrote to memory of 3732	1748	Uninstall.exe	83
PID 1748 wrote to memory of 3732	1748	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:1748
- C:\Users\Admin\AppData\Local\Temp\A~NSISu_.exe
  "C:\Users\Admin\AppData\Local\Temp\A~NSISu_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\A~NSISu_.exe

Filesize
143KB

MD5
20ac6f15f2febb1d632e3a41839f8743

SHA1
2bf36edf070478fa037c6c6877f1e1bd6c40a886

SHA256
5ff4e90901b9038ab4adbb00a6c678103cfc0e96bf1b9e1b4741ddfbf7007d8c

SHA512
638b1fdb39cc9f68caba23f2a3b324c89944c6db6d093f1d645771f8eff9b5988e890075ffd14bf9d08b857e159e003a397f00d79749384486ede064258b50cb

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsl7C75.tmp\InstallOptions.dll

Filesize
12KB

MD5
07f3b3445f66e1089567796bf3c8be78

SHA1
851eb574c1067b23a654f8aa47b17ef599b24d1c

SHA256
a505e6c537a5ce0166227dda9f7671605395592ac9f1a3764e8a01b713939db1

SHA512
8c56308fff3a947b26fd0d98dbdd96c406ddf967f5d7abee8cba082b6c46a4e575094bb0bb981551ac5160bb5089cf6fb125dd17a659c427e28c07402adab1c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsl7C75.tmp\ioSpecial.ini

Filesize
592B

MD5
222525c61a4d2747b09a3c41828b5558

SHA1
7e80d85e6b1a99d46b66f7bc47717c62c5b29ad6

SHA256
699771f1214d7a2d6650ae9584ea25ea078e86adb9b24fc19af013200f6d3151

SHA512
e1d6ad86d9282741a7fc13cf2ba8af8b164d871887ba9b6dde625cfd3bba67f2618ca0e8de2a4d618738baec1c566b22d823ece3bc1f04440aa69c504db3f474

Download Submit