a32b668a91b9c3a6d3cff3b15d556572b948ddfddb24ac7f84a46335e2790f6f

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-09-2024 22:51

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General

Target

iis_rewrite/Rewrite.dll
Size

136KB
MD5

afe04864cb12e4a50dbf78cc7a0286b3
SHA1

8c979cc31ff93269b362545e46a2edef7482b7c4
SHA256

318fc2f6025aaeed7a236e57b4b6fc86ab218c9dd49bf2d0b027dcccb9a49499
SHA512

e88f202679e55c779335e587841731903c2bebbc4049dfdf9da8c644a906f15805e8a9da20824145b3629a85a4f4385b5a72a7a77d640d6ef2e85b677cf3001b
SSDEEP

3072:vODKsHGDzhimd4xW0BUPpj9WImxHWwkuqihyg9:11bj9WIUTVyg

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2972 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
2972	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 2556 wrote to memory of 1720	2556	rundll32.exe	rundll32.exe
PID 2556 wrote to memory of 1720	2556	rundll32.exe	rundll32.exe
PID 2556 wrote to memory of 1720	2556	rundll32.exe	rundll32.exe
PID 2556 wrote to memory of 1720	2556	rundll32.exe	rundll32.exe
PID 2556 wrote to memory of 1720	2556	rundll32.exe	rundll32.exe
PID 2556 wrote to memory of 1720	2556	rundll32.exe	rundll32.exe
PID 2556 wrote to memory of 1720	2556	rundll32.exe	rundll32.exe
PID 1720 wrote to memory of 2972	1720	rundll32.exe	WerFault.exe
PID 1720 wrote to memory of 2972	1720	rundll32.exe	WerFault.exe
PID 1720 wrote to memory of 2972	1720	rundll32.exe	WerFault.exe
PID 1720 wrote to memory of 2972	1720	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\iis_rewrite\Rewrite.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2556

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\iis_rewrite\Rewrite.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 256
3⤵
- Program crash
PID:2972

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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