fff735b78e50eaabe5f374ce6f5bc37929af6a132a8b54f84fce9a2a41d45067

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-10-2024 07:38

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General

Target

uninstall.exe
Size

285KB
MD5

f96b12de60766411f5d878af9f0cc115
SHA1

8619182ad87a8e873bac64f05ac6f9416da81501
SHA256

e4b71b58b2c5698c73338c28e9d71734cb4c8dd506c8463ccece548472442ce3
SHA512

446d67699fbc8e02e805a4cfa4d778a97f65183517b949788ee39d866d9b3366cf90f120654d0573ac81b1121deb59bdd9ac03ed4027d1ba6a83fddfd553f3ea
SSDEEP

6144:Ee34xVpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1W:8jeZHkwuPikQ7lKH5p5H9x1W

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
448	Au_.exe

Loads dropped DLL 1 IoCs

pid	Process
448	Au_.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
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 2 IoCs

installer

resource	yara_rule
behavioral14/files/0x000700000002346e-3.dat	nsis_installer_1
behavioral14/files/0x000700000002346e-3.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4552 wrote to memory of 448	4552	uninstall.exe	82
PID 4552 wrote to memory of 448	4552	uninstall.exe	82
PID 4552 wrote to memory of 448	4552	uninstall.exe	82

C:\Users\Admin\AppData\Local\Temp\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4552
- 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⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsc8BA7.tmp\aminsis.dll

Filesize
559KB

MD5
51ba1095f0ae45a2d444bea506cb9ad4

SHA1
038a5d53d055a6d440bd2c8864c2f51db206c5e5

SHA256
b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

SHA512
f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361

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

Filesize
285KB

MD5
f96b12de60766411f5d878af9f0cc115

SHA1
8619182ad87a8e873bac64f05ac6f9416da81501

SHA256
e4b71b58b2c5698c73338c28e9d71734cb4c8dd506c8463ccece548472442ce3

SHA512
446d67699fbc8e02e805a4cfa4d778a97f65183517b949788ee39d866d9b3366cf90f120654d0573ac81b1121deb59bdd9ac03ed4027d1ba6a83fddfd553f3ea

Download Submit