777730664beeade5b6f7b22e8dab7682caa8dfa1456b4c503be930f857265cea

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04/05/2024, 08:24

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General

Target

uninst.exe
Size

36KB
MD5

27f2d91f7ea7e5474dda07833609817e
SHA1

524e6cc8a19418a90a4d2838cf703cfe22ccf09f
SHA256

1814816c054425790ea1d005c8ce15d6f505e9856892087226f79376722d732f
SHA512

5f052f2f9924fc570e4fa64c6b0366c9be5ae0e49b15fb3addea1f7065d60fe9e8ec380cd46ac3e79e0f9ae97135e50eadc3a70585113c3aebb34d79dfd1fbcd
SSDEEP

768:s4wO7XBz+5Qm3W0tYdrQZHV4EWuWEUOg4jjfS3XJgKSWfM:fLXB65939tY6HBg4sXJgKS6M

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1556	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
1556	Au_.exe

Loads dropped DLL 1 IoCs

pid	Process
2868	uninst.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
behavioral15/files/0x003800000001566b-2.dat	nsis_installer_1
behavioral15/files/0x003800000001566b-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 1556	2868	uninst.exe	28
PID 2868 wrote to memory of 1556	2868	uninst.exe	28
PID 2868 wrote to memory of 1556	2868	uninst.exe	28
PID 2868 wrote to memory of 1556	2868	uninst.exe	28

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:2868
- 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
  PID:1556

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
36KB

MD5
27f2d91f7ea7e5474dda07833609817e

SHA1
524e6cc8a19418a90a4d2838cf703cfe22ccf09f

SHA256
1814816c054425790ea1d005c8ce15d6f505e9856892087226f79376722d732f

SHA512
5f052f2f9924fc570e4fa64c6b0366c9be5ae0e49b15fb3addea1f7065d60fe9e8ec380cd46ac3e79e0f9ae97135e50eadc3a70585113c3aebb34d79dfd1fbcd

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