ca5837c6b4cdde0e3ef9942ba308ca19e9b51439048bd0c2fcf5753e1403a517 | Triage

Analysis

max time kernel
42s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
15-12-2022 00:29

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General

Target

vcruntime140.dll
Size

78KB
MD5

a37ee36b536409056a86f50e67777dd7
SHA1

1cafa159292aa736fc595fc04e16325b27cd6750
SHA256

8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825
SHA512

3a7c260646315cf8c01f44b2ec60974017496bd0d80dd055c7e43b707cadba2d63aab5e0efd435670aa77886ed86368390d42c4017fc433c3c4b9d1c47d0f356
SSDEEP

1536:lw2886xv555et/MCsjw0BuRK3jteo3ecbA2W86b+Ld:lw28V55At/zqw+Iq9ecbA2W8H

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1912 1996 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1980 wrote to memory of 1996	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 1996	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 1996	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 1996	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 1996	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 1996	1980	rundll32.exe	rundll32.exe
PID 1980 wrote to memory of 1996	1980	rundll32.exe	rundll32.exe
PID 1996 wrote to memory of 1912	1996	rundll32.exe	WerFault.exe
PID 1996 wrote to memory of 1912	1996	rundll32.exe	WerFault.exe
PID 1996 wrote to memory of 1912	1996	rundll32.exe	WerFault.exe
PID 1996 wrote to memory of 1912	1996	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\vcruntime140.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\vcruntime140.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1996 -s 224
    3⤵
    - Program crash
    PID:1912

Network

MITRE ATT&CK Matrix

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Downloads

memory/1912-56-0x0000000000000000-mapping.dmp

Download
memory/1996-54-0x0000000000000000-mapping.dmp

Download
memory/1996-55-0x0000000076031000-0x0000000076033000-memory.dmp

Filesize
8KB

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