5cd50d57a32b96d16db5abb18023bc202afffbb894060ef2f0d59f03f65a906e

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-11-2024 16:58

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General

Target

unrar.dll
Size

174KB
MD5

4289541be75e95bcfff04857f7144d87
SHA1

5ec8085e30d75ec18b8b1e193b3d5aa1648b0d2e
SHA256

2631fcdf920610557736549e27939b9c760743a2cddec0b2c2254cfa40003fb0
SHA512

3137a7790de74a6413aca6c80fd57288bcc30a7df3a416f3c6e8666041cd47a9609136c91405eee23224c4ae67c9aebbba4dd9c4e5786b09b83318755b4a55fd
SSDEEP

3072:4Jb18kAn0/QVt5ch1fIBNXaQpZj1JtmosqpdFBVhz3s5xqW3W5/9rSgvWFI:g58kA0/QVPch1QXK6HmosyBhY62Y9Lee

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2700 2732 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
2700	2732	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 2444 wrote to memory of 2732	2444	rundll32.exe	rundll32.exe
PID 2444 wrote to memory of 2732	2444	rundll32.exe	rundll32.exe
PID 2444 wrote to memory of 2732	2444	rundll32.exe	rundll32.exe
PID 2444 wrote to memory of 2732	2444	rundll32.exe	rundll32.exe
PID 2444 wrote to memory of 2732	2444	rundll32.exe	rundll32.exe
PID 2444 wrote to memory of 2732	2444	rundll32.exe	rundll32.exe
PID 2444 wrote to memory of 2732	2444	rundll32.exe	rundll32.exe
PID 2732 wrote to memory of 2700	2732	rundll32.exe	WerFault.exe
PID 2732 wrote to memory of 2700	2732	rundll32.exe	WerFault.exe
PID 2732 wrote to memory of 2700	2732	rundll32.exe	WerFault.exe
PID 2732 wrote to memory of 2700	2732	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\unrar.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2444

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\unrar.dll,#1
2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2732 -s 220
3⤵
- Program crash
PID:2700

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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