5a34e94bb5cb2a260c290c4f630ab0a5c1bfe0a236fa28ed4f6269e7c80b57a8

Analysis

max time kernel
11s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/10/2024, 07:07

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General

Target

uninstall.exe
Size

289KB
MD5

cceb3a3b9dbfed85bb656f2be7d8f16d
SHA1

8aadc169015c9a38f06d9d2aad51005a0c3c5d9c
SHA256

dcb24a0e6e823dde6add4d3e8019ee33c9d38c457291aff860cd350e585251a5
SHA512

ffb9ab7a133254af9eeb56a0e98fdab52a6f6ce831d8669b2613ffe9b8a12ed20064d630ff3ada771ea909fb4d4c824539882728149b55c69145751f38c13b7e
SSDEEP

6144:Ue34RzRg4l8ai5PQtTZ763J8eWW43YLYjn5uO7D32fuCa7BmC:Uzq4OaQQTYJ8eP4/L5uO7D3f5BT

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2480	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
1120	uninstall.exe
2480	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/0x000d000000018b64-2.dat	nsis_installer_1
behavioral13/files/0x000d000000018b64-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 2480	1120	uninstall.exe	29
PID 1120 wrote to memory of 2480	1120	uninstall.exe	29
PID 1120 wrote to memory of 2480	1120	uninstall.exe	29
PID 1120 wrote to memory of 2480	1120	uninstall.exe	29

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:1120
- 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:2480

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\nso31BB.tmp\aminsis.dll

Filesize
567KB

MD5
450753ad96785a240a39deccab3af0d0

SHA1
21c544064d2ffa6444508268ce258a330d459fc5

SHA256
1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

SHA512
c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab

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

Filesize
289KB

MD5
cceb3a3b9dbfed85bb656f2be7d8f16d

SHA1
8aadc169015c9a38f06d9d2aad51005a0c3c5d9c

SHA256
dcb24a0e6e823dde6add4d3e8019ee33c9d38c457291aff860cd350e585251a5

SHA512
ffb9ab7a133254af9eeb56a0e98fdab52a6f6ce831d8669b2613ffe9b8a12ed20064d630ff3ada771ea909fb4d4c824539882728149b55c69145751f38c13b7e

Download Submit