49a6613b3b1575f5bedec9f348d5afca76ce39dc5f867a03aa5750135498b9b3

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/08/2024, 16:01

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General

Target

$0/uninstall.exe
Size

83KB
MD5

b8581e4563421179a21eb5f9daff2380
SHA1

99531598663bfaf0acd2e656532d9df44a69e4f3
SHA256

79334466126d6e4bf47b1964675c01885a9dbf27541fd72e72aae58f95acfd23
SHA512

800e36eeff74e6e0a03d2cb75c71a9460c6fa1cbcc7457301996e20f1e578cf0cf9cba66de8e964bedf0f4a188bd954dc4799c0a87e4d2cea76b8b8e4b92cb33
SSDEEP

1536:6EkjY1zy214Qay0DGkJ7qAELVigJU4cp9iCxVF97d2/D8q:BkjAJ4dDGkJ+AI0bxvxVDQ/F

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4328	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
4328	Au_.exe
4328	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
behavioral8/files/0x00070000000234b5-3.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 4328	1056	uninstall.exe	84
PID 1056 wrote to memory of 4328	1056	uninstall.exe	84
PID 1056 wrote to memory of 4328	1056	uninstall.exe	84

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:1056
- 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:4328

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\nsp8638.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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C:\Users\Admin\AppData\Local\Temp\nsp8638.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

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C:\Users\Admin\AppData\Local\Temp\nsp8638.tmp\ioSpecial.ini

Filesize
697B

MD5
90d20c71430388079047af6b1583bafd

SHA1
2cdecd4411381a74ab9c66fc05b31ad4c3c5ff97

SHA256
9449410436f11c22fa5ab8f95b770c8e7a8585756996da3409f8212a4cbe3cd7

SHA512
acb541f81c15284e2cfd38daef79f37a7e12a9d666576ef85d0a70493cc91355b449794bfb01724bc257a4a5117a8c845fa50103618983ea904d7a6da17cff94

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

Filesize
83KB

MD5
b8581e4563421179a21eb5f9daff2380

SHA1
99531598663bfaf0acd2e656532d9df44a69e4f3

SHA256
79334466126d6e4bf47b1964675c01885a9dbf27541fd72e72aae58f95acfd23

SHA512
800e36eeff74e6e0a03d2cb75c71a9460c6fa1cbcc7457301996e20f1e578cf0cf9cba66de8e964bedf0f4a188bd954dc4799c0a87e4d2cea76b8b8e4b92cb33

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