c33d70a631de1ca7600609233a751d630956be9a6d01363b3a6b1d6f01c6a9a9

Analysis

max time kernel
16s
max time network
18s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09/07/2024, 15:47

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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

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1944	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
1944	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2300	uninst.exe
1944	Au_.exe
1944	Au_.exe
1944	Au_.exe

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

System Information Discovery
T1082

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral7/files/0x00050000000187c0-2.dat	nsis_installer_1
behavioral7/files/0x00050000000187c0-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 1944	2300	uninst.exe	29
PID 2300 wrote to memory of 1944	2300	uninst.exe	29
PID 2300 wrote to memory of 1944	2300	uninst.exe	29
PID 2300 wrote to memory of 1944	2300	uninst.exe	29
PID 2300 wrote to memory of 1944	2300	uninst.exe	29
PID 2300 wrote to memory of 1944	2300	uninst.exe	29
PID 2300 wrote to memory of 1944	2300	uninst.exe	29

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2300
- 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
  PID:1944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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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