b4b87355602da3e7e9ae03c3ae1def2c61d7e799a7c1e0cfc25ed8f4a6905fca

Analysis

max time kernel
83s
max time network
18s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
10-09-2024 06:01

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General

Target

$PLUGINSDIR/nsisdl.dll
Size

14KB
MD5

41f557e065b405f94d0ece8b5727233b
SHA1

c6d1704eefbdfe0a7d4a03c65acc70cdde883598
SHA256

9de492995d2180635aa3194b88ce6dd94e0c2b001af5952a73d4a84fbc32b6ab
SHA512

43b35b2366ba54593087c8c9127da5acc8efb45ebb84603138027692877173294b7478f8c6308ed9b168813c7b6d5f2b8dd261b75e58d0c97440baa4d0fbe493
SSDEEP

384:4ck76gi51kE5aYOMLDC4UnDp9B0Jc5HNw2rE:4ck76gibLCMLDLCx04HNVrE

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2556 2336 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
2556	2336	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 2320 wrote to memory of 2336	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2336	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2336	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2336	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2336	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2336	2320	rundll32.exe	rundll32.exe
PID 2320 wrote to memory of 2336	2320	rundll32.exe	rundll32.exe
PID 2336 wrote to memory of 2556	2336	rundll32.exe	WerFault.exe
PID 2336 wrote to memory of 2556	2336	rundll32.exe	WerFault.exe
PID 2336 wrote to memory of 2556	2336	rundll32.exe	WerFault.exe
PID 2336 wrote to memory of 2556	2336	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsisdl.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsisdl.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2336
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2336 -s 224
    3⤵
    - Program crash
    PID:2556

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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