defc4938d8bd97582c87076512ca24e49a8eb945287f150562ab98d6d9812454

Analysis

max time kernel
139s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20/05/2024, 02:24

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General

Target

defc4938d8bd97582c87076512ca24e49a8eb945287f150562ab98d6d9812454.dll
Size

223KB
MD5

bb8f8bb8b53b8f5b4c205429edb0d9eb
SHA1

f45fe9761a8850636f5519bd87d5015423d1e1e4
SHA256

defc4938d8bd97582c87076512ca24e49a8eb945287f150562ab98d6d9812454
SHA512

427fc1488c1334278915ef3f66b9acfd04330d6308f796f3900592157e987af20688ac28f69a520c290dc83e9af79ef24042b118bb635d3f4f6932c7ac5d8b1c
SSDEEP

3072:6huf5AUWGIcvRJvK2agufAjWZdlGZxIOtY81fs2lQBV+UdE+rECWp7hK1n:ZBAUWG7Vaguf6vLIBV+UdvrEFp7hKp

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000900000002351c-1.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
4552	rundll32.exe
4552	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000900000002351c-1.dat	upx
behavioral2/memory/4552-6-0x0000000001030000-0x0000000001060000-memory.dmp	upx
behavioral2/memory/4552-10-0x0000000001030000-0x0000000001060000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3664	4552	WerFault.exe	91

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4552	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 4552	536	rundll32.exe	91
PID 536 wrote to memory of 4552	536	rundll32.exe	91
PID 536 wrote to memory of 4552	536	rundll32.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\defc4938d8bd97582c87076512ca24e49a8eb945287f150562ab98d6d9812454.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:536
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\defc4938d8bd97582c87076512ca24e49a8eb945287f150562ab98d6d9812454.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4552
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4552 -s 712
    3⤵
    - Program crash
    PID:3664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4552 -ip 4552
1⤵
PID:1400

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 --field-trial-handle=4088,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=3772 /prefetch:8
1⤵
PID:2492

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/4552-6-0x0000000001030000-0x0000000001060000-memory.dmp

Filesize
192KB

Download
memory/4552-10-0x0000000001030000-0x0000000001060000-memory.dmp

Filesize
192KB

Download
memory/4552-8-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download