81def15975007162ff65c1e9804e77f0e21adacc8a50717f99a18c5284c0e274

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-10-2024 09:27

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General

Target

uninstall.exe
Size

289KB
MD5

26558c2ecae4ebfa87c68e3cf253eac2
SHA1

96ed265acfa385dd6a71928f731e55c8a37fbbfc
SHA256

b13d1bfd00c1a9960969e734c4eb7cf33c24c22eb0a5760576208b6eae7cd781
SHA512

eb81546bb299fd796ec852f33186e9febc6cc708a7907a6549954ef80aa46f9167f7ee1bf75399af3bb6bfc7f42083e7700f400f1990f7de10f743873a93ceb2
SSDEEP

6144:Ue34NpRg4l8ai5PQtTZ763J8eWW43YLYjn5uO7D32fuCa7Bm/:gpq4OaQQTYJ8eP4/L5uO7D3f5BC

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2692	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2264	uninstall.exe
2692	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/0x00050000000195e4-2.dat	nsis_installer_1
behavioral13/files/0x00050000000195e4-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 2692	2264	uninstall.exe	30
PID 2264 wrote to memory of 2692	2264	uninstall.exe	30
PID 2264 wrote to memory of 2692	2264	uninstall.exe	30
PID 2264 wrote to memory of 2692	2264	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:2264
- 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:2692

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\nstC22.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
26558c2ecae4ebfa87c68e3cf253eac2

SHA1
96ed265acfa385dd6a71928f731e55c8a37fbbfc

SHA256
b13d1bfd00c1a9960969e734c4eb7cf33c24c22eb0a5760576208b6eae7cd781

SHA512
eb81546bb299fd796ec852f33186e9febc6cc708a7907a6549954ef80aa46f9167f7ee1bf75399af3bb6bfc7f42083e7700f400f1990f7de10f743873a93ceb2

Download Submit