6e341a169924d71f2451a4b76562a14e2d2bdad3d312af72eedbf90e3b7a40e7

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-01-2025 11:22

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General

Target

uninst.exe
Size

35KB
MD5

9331b82efd50c1085b8b01a34a4ff6ff
SHA1

de8d2e8dff020e724171c08ddaaff1554ab404c1
SHA256

f5ff33f631031a3995edad59bed55902032192c65ea3d6123ed47ea60fcee4f4
SHA512

e00ee2395e8cb48c7554c604a14f1cdf9830d3930c580c0d482e7bc965f953828383e182b86a06263f1946883e6d8ec6f52199218bba22cbb8b06e2309d098ce
SSDEEP

768:ZFe0D3XjRal6bOS90v2iMrTxRX0I666Sr2ZvMjBtL3MBJREAMa:Te0DnjRrJav2FnUIRr2vMYBJREAJ

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1772	A~NSISu_.exe

Executes dropped EXE 1 IoCs

pid	Process
1772	A~NSISu_.exe

Loads dropped DLL 4 IoCs

pid	Process
2680	uninst.exe
1772	A~NSISu_.exe
1772	A~NSISu_.exe
1772	A~NSISu_.exe

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	uninst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	A~NSISu_.exe

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral11/files/0x000b0000000120d6-2.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 1772	2680	uninst.exe	30
PID 2680 wrote to memory of 1772	2680	uninst.exe	30
PID 2680 wrote to memory of 1772	2680	uninst.exe	30
PID 2680 wrote to memory of 1772	2680	uninst.exe	30
PID 2680 wrote to memory of 1772	2680	uninst.exe	30
PID 2680 wrote to memory of 1772	2680	uninst.exe	30
PID 2680 wrote to memory of 1772	2680	uninst.exe	30

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Users\Admin\AppData\Local\Temp\A~NSISu_.exe
  "C:\Users\Admin\AppData\Local\Temp\A~NSISu_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\A~NSISu_.exe

Filesize
35KB

MD5
9331b82efd50c1085b8b01a34a4ff6ff

SHA1
de8d2e8dff020e724171c08ddaaff1554ab404c1

SHA256
f5ff33f631031a3995edad59bed55902032192c65ea3d6123ed47ea60fcee4f4

SHA512
e00ee2395e8cb48c7554c604a14f1cdf9830d3930c580c0d482e7bc965f953828383e182b86a06263f1946883e6d8ec6f52199218bba22cbb8b06e2309d098ce

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