c49f0320eeab8dd644ba344a2039b4de48a26ef77c05eb069721477f0cd182ba

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
21/08/2024, 11:14

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General

Target

uninstall.exe
Size

55KB
MD5

314e390f6ec6b3f0b0dfd38f8828f878
SHA1

edc9beb21d5bdf7f8d04b4988c946c72b38bb337
SHA256

8be9f2cd6e894f14c4f031207afa16fd0be4b5fd1ddb7587fc52dbc90ce3b941
SHA512

5a0b0ee1d0eceaf4bcdb9012c891e2545b9b51a4ff59aa4e91a511086cd6cbc949745f6c1c2f57bb13881ba7e04180985744002e709373ee70df76945804a7ec
SSDEEP

1536:ZXwjCzX139sZDM4y0DhmJFhkFUe1BgUyY:VYU94fDhmJFh0Ue1BP

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2848	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2848	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2676	uninstall.exe
2848	Au_.exe
2848	Au_.exe
2848	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
behavioral25/files/0x0006000000017400-2.dat	nsis_installer_1
behavioral25/files/0x0006000000017400-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2848	2676	uninstall.exe	30
PID 2676 wrote to memory of 2848	2676	uninstall.exe	30
PID 2676 wrote to memory of 2848	2676	uninstall.exe	30
PID 2676 wrote to memory of 2848	2676	uninstall.exe	30
PID 2676 wrote to memory of 2848	2676	uninstall.exe	30
PID 2676 wrote to memory of 2848	2676	uninstall.exe	30
PID 2676 wrote to memory of 2848	2676	uninstall.exe	30

C:\Users\Admin\AppData\Local\Temp\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2676
- 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
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2848

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

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

Filesize
55KB

MD5
314e390f6ec6b3f0b0dfd38f8828f878

SHA1
edc9beb21d5bdf7f8d04b4988c946c72b38bb337

SHA256
8be9f2cd6e894f14c4f031207afa16fd0be4b5fd1ddb7587fc52dbc90ce3b941

SHA512
5a0b0ee1d0eceaf4bcdb9012c891e2545b9b51a4ff59aa4e91a511086cd6cbc949745f6c1c2f57bb13881ba7e04180985744002e709373ee70df76945804a7ec

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