dde364f762284b712008127922d3ab75a79687f2a03406ce87175c496cb3ae46 | Triage

Analysis

max time kernel
88s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2023, 12:43

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General

Target

cheirotherium.dll
Size

481KB
MD5

27abb413f6543e7a627880ec2b6bd91f
SHA1

deffa882e0011edf87e2d141e63bc86318d223e2
SHA256

dde364f762284b712008127922d3ab75a79687f2a03406ce87175c496cb3ae46
SHA512

bc1b18e77dc91e52c74359b0ad9d92117ed96dde01ee4564db88e4b3e5043575caa3f21c06e1f4b4db4c60fffa5cb254bd274c1bd16d522d00bf954ea058b693
SSDEEP

12288:FNg5j3vw+WqFlWJfkmVwe1UL4hsao3Oowg9Pdz:M55F4lhrgOon9J

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1960	3336	WerFault.exe	85

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 3336	2128	rundll32.exe	85
PID 2128 wrote to memory of 3336	2128	rundll32.exe	85
PID 2128 wrote to memory of 3336	2128	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cheirotherium.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cheirotherium.dll,#1
  2⤵
  PID:3336
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3336 -s 600
    3⤵
    - Program crash
    PID:1960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3336 -ip 3336
1⤵
PID:2464

Network

MITRE ATT&CK Matrix

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