12ed02e0563211a72b5a2bf977a863be7074b1db173720159c88b5d9bea9b4cc

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/09/2024, 23:27

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General

Target

uninst.exe
Size

37KB
MD5

a95b412a002f4305708312b0dac94ab9
SHA1

4c6f9a336dd38c23d1e7be2ea21b6accf25cb080
SHA256

afa5195836eecf8934c14c4f04dc0a87cda7bb9c1a534d975daacd7021403903
SHA512

128f5fd4a2db0d11360a48b78e5f980cf85fc805251dacdb6af76a68e329016cb84c0ec85a4f4067bedc5587b9f3866f48d4e0d906420c11234dd59c73c530b6
SSDEEP

768:EHJd0TpH2+bQ2dUWVX9Hfv1JMWmtLEJOyuBxG0D3mjfS3XJKTQvDXF:EpgpHzb9dZVX9fHMvG0D3XJm8F

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2108	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2108	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
1600	uninst.exe
2108	Au_.exe
2108	Au_.exe
2108	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	uninst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral11/files/0x000600000001747d-2.dat	nsis_installer_1
behavioral11/files/0x000600000001747d-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 2108	1600	uninst.exe	30
PID 1600 wrote to memory of 2108	1600	uninst.exe	30
PID 1600 wrote to memory of 2108	1600	uninst.exe	30
PID 1600 wrote to memory of 2108	1600	uninst.exe	30
PID 1600 wrote to memory of 2108	1600	uninst.exe	30
PID 1600 wrote to memory of 2108	1600	uninst.exe	30
PID 1600 wrote to memory of 2108	1600	uninst.exe	30

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1600
- 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:2108

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
37KB

MD5
a95b412a002f4305708312b0dac94ab9

SHA1
4c6f9a336dd38c23d1e7be2ea21b6accf25cb080

SHA256
afa5195836eecf8934c14c4f04dc0a87cda7bb9c1a534d975daacd7021403903

SHA512
128f5fd4a2db0d11360a48b78e5f980cf85fc805251dacdb6af76a68e329016cb84c0ec85a4f4067bedc5587b9f3866f48d4e0d906420c11234dd59c73c530b6

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