3f0d55cc76b37f8cad60406ad252b0b44c12017612f41004c0c04d2985eb1336

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 05:24

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General

Target

uninstall.exe
Size

285KB
MD5

ef6751619af89cd58cce534b07a03413
SHA1

1213f09345f6911bb4c17aace75eaca2924642c8
SHA256

e8e9c2e9b4d99a741548e5f664ca01d8500d4f7d4710acc19234ab8b15319e1e
SHA512

6183b2c71f3a79cbca1e29e3422220e3612e824afaac64eb623d32cb6a573f72d018708501ef3a3486d82d13c2c0e0539831c0fa48d094b44cf74a23a2ba466b
SSDEEP

6144:Ee3448OpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x18:NFeZHkwuPikQ7lKH5p5H9x18

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2340	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
1396	uninstall.exe
2340	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/0x000500000001941a-2.dat	nsis_installer_1
behavioral13/files/0x000500000001941a-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 2340	1396	uninstall.exe	31
PID 1396 wrote to memory of 2340	1396	uninstall.exe	31
PID 1396 wrote to memory of 2340	1396	uninstall.exe	31
PID 1396 wrote to memory of 2340	1396	uninstall.exe	31

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:1396
- 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:2340

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

\Users\Admin\AppData\Local\Temp\nsjE5CE.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
ef6751619af89cd58cce534b07a03413

SHA1
1213f09345f6911bb4c17aace75eaca2924642c8

SHA256
e8e9c2e9b4d99a741548e5f664ca01d8500d4f7d4710acc19234ab8b15319e1e

SHA512
6183b2c71f3a79cbca1e29e3422220e3612e824afaac64eb623d32cb6a573f72d018708501ef3a3486d82d13c2c0e0539831c0fa48d094b44cf74a23a2ba466b

Download Submit