5ce9e6d1e11c658631f427b384d27dc366dea29dd4f33d2c874bea7cb78273f9 | Triage

Analysis

max time kernel
93s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
16/07/2024, 09:39

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General

Target

codecs/atrc.dll
Size

34KB
MD5

4b1e7a6581970491b94de2a8f79694ae
SHA1

04980cd386bde2ceb7de74f0f2c6f175d919c867
SHA256

2df895f38b75425ee8c6ccf6becbc3290519edd88e26aac5bcdd54ea77ed8b27
SHA512

0d65437216349a967a43447f4de60d87eeba3e149d6aac47079a5b244feb425649de023ff5b0bd6ed04530a7c59f09aebfb9035e211c44da66d5be4e9116eac5
SSDEEP

768:clrO2jn9UuqssLod5mGEpplRo2sqF+nmwTFS3TYXgeRir:2a2jn9ZMLod5mdpplRoZqOHY3TcnRo

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

resource	yara_rule
behavioral30/memory/3288-1-0x0000000060A20000-0x0000000060A70000-memory.dmp	upx
behavioral30/memory/3288-0-0x0000000060E70000-0x0000000060E8A000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4416	3288	WerFault.exe	84

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 952 wrote to memory of 3288	952	rundll32.exe	84
PID 952 wrote to memory of 3288	952	rundll32.exe	84
PID 952 wrote to memory of 3288	952	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\codecs\atrc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:952
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\codecs\atrc.dll,#1
  2⤵
  PID:3288
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3288 -s 616
    3⤵
    - Program crash
    PID:4416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3288 -ip 3288
1⤵
PID:1032

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3288-1-0x0000000060A20000-0x0000000060A70000-memory.dmp

Filesize
320KB

Download
memory/3288-0-0x0000000060E70000-0x0000000060E8A000-memory.dmp

Filesize
104KB

Download