941cc44f629086310dba8c9e96ab55994f230eef6917a2e70ec6c9b698154d88 | Triage

Analysis

max time kernel
140s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
24/06/2024, 12:13

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General

Target

RTFC.dll
Size

72KB
MD5

e9257c5379c36eba7e8f301472bccc88
SHA1

2aa90a5d69753df9d899d4d8a27a1d19d51b2c1d
SHA256

8e2e899f029ee75aa583597566f182f9a3cccd2e9dc4d60ea371efb98152c077
SHA512

cdb2cc5216d41c9d9bfb4b82d99c19dec5cbd84df16c8ce2b130e9297ca059db843db441c0fa9c68ee8dbe3b5597c52933729204b7f92406f9a4724300c5d8fd
SSDEEP

1536:y8Hdxz/ItCFzDGhS5bh7SOXpY9YG3qxQRhus:X9Ahya3qxQRhu

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3280	1152	WerFault.exe	89

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4964 wrote to memory of 1152	4964	rundll32.exe	89
PID 4964 wrote to memory of 1152	4964	rundll32.exe	89
PID 4964 wrote to memory of 1152	4964	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\RTFC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\RTFC.dll,#1
  2⤵
  PID:1152
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1152 -s 628
    3⤵
    - Program crash
    PID:3280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1152 -ip 1152
1⤵
PID:892

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4136 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:4904

Network

MITRE ATT&CK Matrix

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