b74202b42da26bced2ad73bc73b96faa8da54d1ea2049e4083f54b7b2a3348ca

Analysis

max time kernel
93s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30/09/2024, 17:55

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General

Target

$0/uninstall.exe
Size

83KB
MD5

d90e0c54ddcc23cfc75e32579cc56c70
SHA1

83909c3ad775bac6210d4431b3f03e9229ca9877
SHA256

8274bcdae8b130f8580abeab448d44eff756d0929a5ee3b88ff400db9bb8b806
SHA512

548835b3e11e919d2092fef763b093df0cf879a0964eb0a65b98a753971ab708d65c1a48b7129a63a5c8bd15f40c846be01e0b5899bdbf9ebb977056ee797cfa
SSDEEP

1536:LEkjY1zy214Qay0DGkJ7qAELVigJlRHcpX/OrwsKD7cis52/Dd0P:4kjAJ4dDGkJ+AI0SR8tMwRcisY/2

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2444	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2444	Au_.exe
2444	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	Au_.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uninstall.exe

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral8/files/0x00080000000234ba-3.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 2444	2920	uninstall.exe	82
PID 2920 wrote to memory of 2444	2920	uninstall.exe	82
PID 2920 wrote to memory of 2444	2920	uninstall.exe	82

C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2920
- 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\$0\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2444

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

C:\Users\Admin\AppData\Local\Temp\nsc8C91.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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C:\Users\Admin\AppData\Local\Temp\nsc8C91.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

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C:\Users\Admin\AppData\Local\Temp\nsc8C91.tmp\ioSpecial.ini

Filesize
703B

MD5
0bb5744776863d5c42cbc13cc4be584c

SHA1
54654140462d1c4719a14a09a1c2b135dff2e6e0

SHA256
229fc218420d93079e7aefeb3129bd608395d8468b9c089493c26b6eae8d6168

SHA512
75717dc4ea1d674c583f1adf829c815d1b0d669a236769af8da9ee739906621145c9854673391c2d8f05eca4e160dff9dc46283a64e57919fd2aa1446e8be74c

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

Filesize
83KB

MD5
d90e0c54ddcc23cfc75e32579cc56c70

SHA1
83909c3ad775bac6210d4431b3f03e9229ca9877

SHA256
8274bcdae8b130f8580abeab448d44eff756d0929a5ee3b88ff400db9bb8b806

SHA512
548835b3e11e919d2092fef763b093df0cf879a0964eb0a65b98a753971ab708d65c1a48b7129a63a5c8bd15f40c846be01e0b5899bdbf9ebb977056ee797cfa

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