d1d626b7690fef2026c44746436638bbb92286dc44d9e567d4856e39f98ec199

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 14:23

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General

Target

uninstall.exe
Size

289KB
MD5

821fc22cdaf2375414b7e18772f77783
SHA1

7634b7fa77265e219c4257518ce37c9865857cb7
SHA256

39d40b19ba63460e19054ea9d8880cd20a460220e21a15da7a872be8ec3acdb3
SHA512

c683ea761e6c7cd5ffeb75e4995885d2861f35622b93f0a5cebab1e5f7b892d9470d5e353c2b2882dbe1e8b7f0ca93a4391cadd80d2110569dee455bfa5d801b
SSDEEP

6144:Ue34dfRg4l8ai5PQtTZ763J8eWW43YLYjn5uO7D32fuCa7Bmd:gfq4OaQQTYJ8eP4/L5uO7D3f5Bo

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2556	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2440	uninstall.exe
2556	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/0x000500000001961d-2.dat	nsis_installer_1
behavioral13/files/0x000500000001961d-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 2556	2440	uninstall.exe	30
PID 2440 wrote to memory of 2556	2440	uninstall.exe	30
PID 2440 wrote to memory of 2556	2440	uninstall.exe	30
PID 2440 wrote to memory of 2556	2440	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:2440
- 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:2556

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\nsyDBCF.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
821fc22cdaf2375414b7e18772f77783

SHA1
7634b7fa77265e219c4257518ce37c9865857cb7

SHA256
39d40b19ba63460e19054ea9d8880cd20a460220e21a15da7a872be8ec3acdb3

SHA512
c683ea761e6c7cd5ffeb75e4995885d2861f35622b93f0a5cebab1e5f7b892d9470d5e353c2b2882dbe1e8b7f0ca93a4391cadd80d2110569dee455bfa5d801b

Download Submit