e315b6c1144c05f8031cc752ec6fe84864f004e995476b6354abe5a805544347 | Triage

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26-01-2024 00:28

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General

Target

Codecs/drvc.dll
Size

280KB
MD5

6da31285ac7271bbbfe0f1ee76882383
SHA1

1b8b6cb6ad37dee958be9e0e2e273eb44b61dbb4
SHA256

b172d6680db022b03e8e109d41c271fc644418d0bc3add32513346364d0e8850
SHA512

5bd5c5952c9f6c5711cf3c328820a782abd59641821b1c9d9c1fd492b3350834cfe11e177affa9de27cc9457514c10aff45f41646c3df7ccedbb46247c21b402
SSDEEP

6144:ml06HFrzhnwBxHBxrFPprBxrFBxrzWoEeflc/AljEzz4:mSEFrzhnIWoy/AlYzk

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2760	2104	WerFault.exe	28

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2104	2088	rundll32.exe	28
PID 2088 wrote to memory of 2104	2088	rundll32.exe	28
PID 2088 wrote to memory of 2104	2088	rundll32.exe	28
PID 2088 wrote to memory of 2104	2088	rundll32.exe	28
PID 2088 wrote to memory of 2104	2088	rundll32.exe	28
PID 2088 wrote to memory of 2104	2088	rundll32.exe	28
PID 2088 wrote to memory of 2104	2088	rundll32.exe	28
PID 2104 wrote to memory of 2760	2104	rundll32.exe	29
PID 2104 wrote to memory of 2760	2104	rundll32.exe	29
PID 2104 wrote to memory of 2760	2104	rundll32.exe	29
PID 2104 wrote to memory of 2760	2104	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Codecs\drvc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Codecs\drvc.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 228
    3⤵
    - Program crash
    PID:2760

Network

MITRE ATT&CK Matrix

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Downloads

memory/2104-0-0x0000000060760000-0x00000000607BA000-memory.dmp

Filesize
360KB

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memory/2104-1-0x0000000060760000-0x00000000607BA000-memory.dmp

Filesize
360KB

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