2911feecf3f18123b896d468abc66fe8de08549d1ae751f03bf18170225291aa

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 00:20

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General

Target

uninstall.exe
Size

289KB
MD5

1b8f7dd0715a72537972a474ddec3acd
SHA1

5f18ebef0c05b173830d3ac2a18f77e18ee588ef
SHA256

94ad80767e91e46e1eb5c5bad9c3c60af4d7ce52ae24be3b75c0665343ccba43
SHA512

5ac4acc1b3d3d3b9ee53d9090bb295aa3ec030b62270576077fdd8b0c7af299ff406d9f6496eb0deea8085a09af90ff43ebf1ca2ca6236bd784a83e04681a58d
SSDEEP

6144:Ue34m+Rg4l8ai5PQtTZ763J8eWW43YLYjn5uO7D32fuCa7BmG:n+q4OaQQTYJ8eP4/L5uO7D3f5Bb

Score

7^/10

discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1228	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
1244	uninstall.exe
1228	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/0x000500000001a2b9-2.dat	nsis_installer_1
behavioral13/files/0x000500000001a2b9-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 1228	1244	uninstall.exe	30
PID 1244 wrote to memory of 1228	1244	uninstall.exe	30
PID 1244 wrote to memory of 1228	1244	uninstall.exe	30
PID 1244 wrote to memory of 1228	1244	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:1244
- 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:1228

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\nsdD1E0.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
1b8f7dd0715a72537972a474ddec3acd

SHA1
5f18ebef0c05b173830d3ac2a18f77e18ee588ef

SHA256
94ad80767e91e46e1eb5c5bad9c3c60af4d7ce52ae24be3b75c0665343ccba43

SHA512
5ac4acc1b3d3d3b9ee53d9090bb295aa3ec030b62270576077fdd8b0c7af299ff406d9f6496eb0deea8085a09af90ff43ebf1ca2ca6236bd784a83e04681a58d

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