22a7a589ea5387396db7354ac92a32119e03c00846e84455ec70fd1a286a6962

Analysis

max time kernel
136s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 09:20

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General

Target

$0/uninstall.exe
Size

87KB
MD5

d445cf2b1abb1e43b5bc15ad8b3ee425
SHA1

c32bd43025189c83ffc2d4656c7558b30f623c5a
SHA256

7ce4961b1e2246109df696d8479c3b6d41f658010bd4455d3573c5933e189a53
SHA512

099f2a0783d9415a3e27d2fdf5af83461327ec80f8d801396be91e4c8546377fd884aad75ce1d80ae490daa3db74f6bd2176b46129b8015583321e4e3bcdb32d
SSDEEP

1536:nEkjY1zy214Qay0DGkJbvPJDtimfOPcucp17GP/W8eptep2/DyQM:EkjAJ4dDGkJzniUT3OPebp0o/Y

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1172	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
1172	Au_.exe
1172	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	uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral4/files/0x000700000002349f-3.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1932 wrote to memory of 1172	1932	uninstall.exe	86
PID 1932 wrote to memory of 1172	1932	uninstall.exe	86
PID 1932 wrote to memory of 1172	1932	uninstall.exe	86

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:1932
- 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:1172

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\nsq7BF7.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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C:\Users\Admin\AppData\Local\Temp\nsq7BF7.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

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C:\Users\Admin\AppData\Local\Temp\nsq7BF7.tmp\ioSpecial.ini

Filesize
598B

MD5
5371aa481e35858e1ef9e60e8649ea8f

SHA1
1c8f19d998b5fc2a4790bbc68ce2e9e2c68e5e17

SHA256
06ea41a9b26a82b053bc56cf703149ea97b26f101f2826b611c0548132a3b2a3

SHA512
4945c31f2096e04d3b3916190120aa8057d2e659cce1eacc60ad54e2d9d5b4ec7db560df0699f9926014192d6ba6714ec6e18aec88c72dd3fd0ebceb7ff9c33d

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

Filesize
87KB

MD5
d445cf2b1abb1e43b5bc15ad8b3ee425

SHA1
c32bd43025189c83ffc2d4656c7558b30f623c5a

SHA256
7ce4961b1e2246109df696d8479c3b6d41f658010bd4455d3573c5933e189a53

SHA512
099f2a0783d9415a3e27d2fdf5af83461327ec80f8d801396be91e4c8546377fd884aad75ce1d80ae490daa3db74f6bd2176b46129b8015583321e4e3bcdb32d

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