4d4cd5823c33476f1c244ca48d7666784dda8ffa32a6f34a92e034e2c71034bc

Analysis

max time kernel
130s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
26-05-2024 20:09

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General

Target

4d4cd5823c33476f1c244ca48d7666784dda8ffa32a6f34a92e034e2c71034bc.dll
Size

223KB
MD5

790d9c26827ee5f27c1f7fbd1918f8d5
SHA1

f5278a539a2cf46c4e0b33702e444e7b17899904
SHA256

4d4cd5823c33476f1c244ca48d7666784dda8ffa32a6f34a92e034e2c71034bc
SHA512

47193c7537f7db379eaed2e2760f887ab122e5d46cb45c8716da8b33cbc803dcf6a3a15f0f4a25df3cac975754a2d76201dd59af2cef9851e8322a2106ded0ea
SSDEEP

3072:6hu8dWGIcvzJvK2agufAnAZdlGZxIOtY81fs2lQBV+UdE+rECWp7hKA+d5u:Z8dWGtVagufYLIBV+UdvrEFp7hK/w

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/0x00060000000232a4-1.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
3440	rundll32.exe
3440	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00060000000232a4-1.dat	upx
behavioral2/memory/3440-6-0x0000000000640000-0x0000000000670000-memory.dmp	upx
behavioral2/memory/3440-10-0x0000000000640000-0x0000000000670000-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
1924	3440	WerFault.exe	82

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3440	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3956 wrote to memory of 3440	3956	rundll32.exe	82
PID 3956 wrote to memory of 3440	3956	rundll32.exe	82
PID 3956 wrote to memory of 3440	3956	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d4cd5823c33476f1c244ca48d7666784dda8ffa32a6f34a92e034e2c71034bc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3956
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d4cd5823c33476f1c244ca48d7666784dda8ffa32a6f34a92e034e2c71034bc.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:3440
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3440 -s 700
    3⤵
    - Program crash
    PID:1924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3440 -ip 3440
1⤵
PID:4748

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/3440-6-0x0000000000640000-0x0000000000670000-memory.dmp

Filesize
192KB

Download
memory/3440-8-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download
memory/3440-10-0x0000000000640000-0x0000000000670000-memory.dmp

Filesize
192KB

Download