867acd3e2e5cbc4534a67d9a71fc20bf9a1805546ae731dc6111ba2831c17da2

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17/08/2024, 05:03

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General

Target

uninst.exe
Size

52KB
MD5

664426bae017b80c292641f1b28df25a
SHA1

b09988bd3d14d75f123bb19d2d6c4d0188f8c914
SHA256

ae7a47aa0019320b276283f9505e0a34bbbcf7927f7f451419d56bb1bc9d2657
SHA512

16ea06fc6927f8092397994fb03fcea477f73e148108b7679c1848d14683a3c0b2a6236641b64b20787d916342907c1348e2b09ed8e33a1cd840b9492ef9fbff
SSDEEP

768:S1cVhpQI2EQK0iPDh84nScF15GYbWjXO3XJtMN51G655shjQDIUyGYZcTlq:wQpQ5EP0ijnRTXJ2DX5wjQE/GYqTlq

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2772	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2688	uninst.exe
2772	Au_.exe
2772	Au_.exe
2772	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
behavioral23/files/0x000500000001963f-2.dat	nsis_installer_1
behavioral23/files/0x000500000001963f-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2772	2688	uninst.exe	30
PID 2688 wrote to memory of 2772	2688	uninst.exe	30
PID 2688 wrote to memory of 2772	2688	uninst.exe	30
PID 2688 wrote to memory of 2772	2688	uninst.exe	30
PID 2688 wrote to memory of 2772	2688	uninst.exe	30
PID 2688 wrote to memory of 2772	2688	uninst.exe	30
PID 2688 wrote to memory of 2772	2688	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:2688
- 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:2772

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
52KB

MD5
664426bae017b80c292641f1b28df25a

SHA1
b09988bd3d14d75f123bb19d2d6c4d0188f8c914

SHA256
ae7a47aa0019320b276283f9505e0a34bbbcf7927f7f451419d56bb1bc9d2657

SHA512
16ea06fc6927f8092397994fb03fcea477f73e148108b7679c1848d14683a3c0b2a6236641b64b20787d916342907c1348e2b09ed8e33a1cd840b9492ef9fbff

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