bb1821600a013ca31d2b971c8275252747bdc4201402ab0d7e4ad7b39d7a223c

Analysis

max time kernel
122s
max time network
128s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30/09/2024, 08:19

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General

Target

uninstall.exe
Size

289KB
MD5

1530cc9a9116ed034b59985c5fd1ecac
SHA1

e650a706c5879ba484a179c7ff382ef31a734c56
SHA256

7272ac7ed9174ac43db5d6ae5015f3fbbdec276ae9bfbea4927dcb5ca696d949
SHA512

785f332adf2651b353ca2dc47d4e92856e93093f63decc141cf870ec641d7f779d9e9384dbcc55b754584e2ab039887c230deeed85b070aea71b056f75cce903
SSDEEP

6144:Ue34LDRg4l8ai5PQtTZ763J8eWW43YLYjn5uO7D32fuCa7Bmg:6Dq4OaQQTYJ8eP4/L5uO7D3f5B5

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2128	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2992	uninstall.exe
2128	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
behavioral13/files/0x0005000000018ef7-5.dat	nsis_installer_1
behavioral13/files/0x0005000000018ef7-5.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 2128	2992	uninstall.exe	30
PID 2992 wrote to memory of 2128	2992	uninstall.exe	30
PID 2992 wrote to memory of 2128	2992	uninstall.exe	30
PID 2992 wrote to memory of 2128	2992	uninstall.exe	30

C:\Users\Admin\AppData\Local\Temp\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2992
- 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:2128

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

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Downloads

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

Filesize
289KB

MD5
1530cc9a9116ed034b59985c5fd1ecac

SHA1
e650a706c5879ba484a179c7ff382ef31a734c56

SHA256
7272ac7ed9174ac43db5d6ae5015f3fbbdec276ae9bfbea4927dcb5ca696d949

SHA512
785f332adf2651b353ca2dc47d4e92856e93093f63decc141cf870ec641d7f779d9e9384dbcc55b754584e2ab039887c230deeed85b070aea71b056f75cce903

Download Submit
\Users\Admin\AppData\Local\Temp\nsj6836.tmp\aminsis.dll

Filesize
567KB

MD5
450753ad96785a240a39deccab3af0d0

SHA1
21c544064d2ffa6444508268ce258a330d459fc5

SHA256
1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

SHA512
c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab

Download Submit