b75ff60aaccd7c025a5a2d27afc266bf23808cf46840a4bc868859f0902e09a8 | Triage

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2024, 15:27

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General

Target

TwistedBrush/ISL.dll
Size

114KB
MD5

1e7b267a206d1ea887d930747d5d7062
SHA1

5402b2d248f469f1f90cb09a9e28d5107741c1e9
SHA256

c958755cbed8135e4a7e0b929098d5c6060f910e476766df6155bfae08278984
SHA512

35ba382414507ee089925ecddb592761a0eeddc9cf3c6f599c41413e5af46c1f7477bc42d86ec937c081965291e31e1c30c5aebbc3e387af8b91449cde71d982
SSDEEP

3072:0QvTM6jJ7eGg4HYKxuwLmh0yIlsN3IKNnGYgsvW:0eghGXVuXKEN3HJtgsv

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

resource	yara_rule
behavioral6/memory/2880-0-0x0000000010000000-0x0000000010212000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4432	2880	WerFault.exe	89

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 2880	2584	rundll32.exe	89
PID 2584 wrote to memory of 2880	2584	rundll32.exe	89
PID 2584 wrote to memory of 2880	2584	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\TwistedBrush\ISL.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\TwistedBrush\ISL.dll,#1
  2⤵
  PID:2880
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2880 -s 600
    3⤵
    - Program crash
    PID:4432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2880 -ip 2880
1⤵
PID:876

Network

MITRE ATT&CK Matrix

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Downloads

memory/2880-0-0x0000000010000000-0x0000000010212000-memory.dmp

Filesize
2.1MB

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