b3409b2aeac0378d1164049e7f7e32fe3ad4d626fd4420d467268eb0edc5bc98

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
04-08-2024 00:41

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General

Target

$PLUGINSDIR/nsis7z.dll
Size

424KB
MD5

80e44ce4895304c6a3a831310fbf8cd0
SHA1

36bd49ae21c460be5753a904b4501f1abca53508
SHA256

b393f05e8ff919ef071181050e1873c9a776e1a0ae8329aefff7007d0cadf592
SHA512

c8ba7b1f9113ead23e993e74a48c4427ae3562c1f6d9910b2bbe6806c9107cf7d94bc7d204613e4743d0cd869e00dafd4fb54aad1e8adb69c553f3b9e5bc64df
SSDEEP

6144:aUWQQ5O3fz0NG3ucDaEUTWfk+ZA0NrCL/k+uyoyBOX1okfW7w+Pfzqibckl:an5QEG39fPAkrE4yrBOXDfaNbck

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2904 1720 WerFault.exe rundll32.exe
System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

pid	pid_target	process	target process
2904	1720	WerFault.exe	rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1960 wrote to memory of 1720	1960	rundll32.exe	rundll32.exe
PID 1960 wrote to memory of 1720	1960	rundll32.exe	rundll32.exe
PID 1960 wrote to memory of 1720	1960	rundll32.exe	rundll32.exe
PID 1960 wrote to memory of 1720	1960	rundll32.exe	rundll32.exe
PID 1960 wrote to memory of 1720	1960	rundll32.exe	rundll32.exe
PID 1960 wrote to memory of 1720	1960	rundll32.exe	rundll32.exe
PID 1960 wrote to memory of 1720	1960	rundll32.exe	rundll32.exe
PID 1720 wrote to memory of 2904	1720	rundll32.exe	WerFault.exe
PID 1720 wrote to memory of 2904	1720	rundll32.exe	WerFault.exe
PID 1720 wrote to memory of 2904	1720	rundll32.exe	WerFault.exe
PID 1720 wrote to memory of 2904	1720	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1960

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#1
2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 220
3⤵
- Program crash
PID:2904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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