a3924df964a4e90c60ab76c7627706dd4986c06c3c513b9dae66d2cb9dc80fe1 | Triage

Analysis

max time kernel
118s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
01/01/2024, 08:01

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General

Target

msvcr71.dll
Size

340KB
MD5

ca2f560921b7b8be1cf555a5a18d54c3
SHA1

432dbcf54b6f1142058b413a9d52668a2bde011d
SHA256

c4d4339df314a27ff75a38967b7569d9962337b8d4cd4b0db3aba5ff72b2bfbb
SHA512

23e0bdd9458a5a8e0f9bbcb7f6ce4f87fcc9e47c1ee15f964c17ff9fe8d0f82dd3a0f90263daaf1ee87fad4a238aa0ee92a16b3e2c67f47c84d575768edba43e
SSDEEP

6144:cPlV59g81QWguohIP/siMbo8Crn2zzwRFMciFMNrb3YgxS3bCAO5kkG:OlVvN1QWguohInJDrn8zwNF7eCr

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1472	4480	WerFault.exe	14

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4044 wrote to memory of 4480	4044	rundll32.exe	14
PID 4044 wrote to memory of 4480	4044	rundll32.exe	14
PID 4044 wrote to memory of 4480	4044	rundll32.exe	14

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr71.dll,#1
1⤵
PID:4480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4480 -s 604
  2⤵
  - Program crash
  PID:1472

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr71.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4480 -ip 4480
1⤵
PID:5096

Network

MITRE ATT&CK Matrix

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