b1965fa85aff2f92491e1483690f54e0605e659610a3c69e0e63c1cc44e5b548

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12/10/2024, 17:49

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General

Target

uninstall.exe
Size

285KB
MD5

5cd543dc883163d1d7ee36801b5efa50
SHA1

74355611f2834e41bc41b5433c5f33bce91a4b36
SHA256

4246d2d17e634e00f56522b9efd5d96e882c79cf224701b049cbe9841288393f
SHA512

18610008ad5302dfd76abbfe7a5fc9101d6f1bd70f5fcda0d4ff43bf18d83ac9386bf38459a74bc5772e103d0167f768b3fe1988a40debe280bef6d2933c39ba
SSDEEP

6144:Ee34hvpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1a:kheZHkwuPikQ7lKH5p5H9x1a

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2312	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
1984	uninstall.exe
2312	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/0x0005000000018745-2.dat	nsis_installer_1
behavioral13/files/0x0005000000018745-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2312	1984	uninstall.exe	30
PID 1984 wrote to memory of 2312	1984	uninstall.exe	30
PID 1984 wrote to memory of 2312	1984	uninstall.exe	30
PID 1984 wrote to memory of 2312	1984	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:1984
- 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:2312

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\nsoA15F.tmp\aminsis.dll

Filesize
559KB

MD5
51ba1095f0ae45a2d444bea506cb9ad4

SHA1
038a5d53d055a6d440bd2c8864c2f51db206c5e5

SHA256
b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

SHA512
f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361

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

Filesize
285KB

MD5
5cd543dc883163d1d7ee36801b5efa50

SHA1
74355611f2834e41bc41b5433c5f33bce91a4b36

SHA256
4246d2d17e634e00f56522b9efd5d96e882c79cf224701b049cbe9841288393f

SHA512
18610008ad5302dfd76abbfe7a5fc9101d6f1bd70f5fcda0d4ff43bf18d83ac9386bf38459a74bc5772e103d0167f768b3fe1988a40debe280bef6d2933c39ba

Download Submit