724500fee4e1c5e15c52fdcdf5c1aba918580d6755d136bdb83ff4619f1347f5

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/10/2024, 07:29

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General

Target

uninstall.exe
Size

289KB
MD5

03b75db1fd393818ee419ed513c8463e
SHA1

cc1fdac2971a1b42d246716e429d8a5bf2e13802
SHA256

c9038d70cf2df0173f3c708a2c2e7b7b03b8200fabc98c9358f443df45040897
SHA512

bef64d36394672f494d88ac7d559a16ad201e17e4ed07cf874b3d5b664d4b23ad37134f5224acffa1211a0534b4bc44612990ec7717a7e70b6b2c3c4e2dc0377
SSDEEP

6144:Ue34RoRg4l8ai5PQtTZ763J8eWW43YLYjn5uO7D32fuCa7Bmc:8oq4OaQQTYJ8eP4/L5uO7D3f5Bh

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2900	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
1656	uninstall.exe
2900	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	Au_.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uninstall.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral13/files/0x0005000000019241-2.dat	nsis_installer_1
behavioral13/files/0x0005000000019241-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 2900	1656	uninstall.exe	28
PID 1656 wrote to memory of 2900	1656	uninstall.exe	28
PID 1656 wrote to memory of 2900	1656	uninstall.exe	28
PID 1656 wrote to memory of 2900	1656	uninstall.exe	28

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:1656
- 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:2900

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\nsyA62F.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
03b75db1fd393818ee419ed513c8463e

SHA1
cc1fdac2971a1b42d246716e429d8a5bf2e13802

SHA256
c9038d70cf2df0173f3c708a2c2e7b7b03b8200fabc98c9358f443df45040897

SHA512
bef64d36394672f494d88ac7d559a16ad201e17e4ed07cf874b3d5b664d4b23ad37134f5224acffa1211a0534b4bc44612990ec7717a7e70b6b2c3c4e2dc0377

Download Submit