systembc | 329501486d4922ccf3a28e8ecf0046151e7106dc31ea6df33670d0d15d10cf54 | Triage

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
08-02-2023 18:27

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General

Target

1cfd78420793c0fafebf0f4e1a09c1ff.dll
Size

1.2MB
MD5

1cfd78420793c0fafebf0f4e1a09c1ff
SHA1

8c6df311b3f42ffab51df0d411cefae923ef0929
SHA256

329501486d4922ccf3a28e8ecf0046151e7106dc31ea6df33670d0d15d10cf54
SHA512

1f4a85c4186a31c3e20f6e7dbffcf25fbf7f7587b782c3009013d643f1abcb27f2c79778a1587cb4b0ceff14327451d1b0a08ef2eef2ade94baa45f7a94dc182
SSDEEP

24576:BB++leR75eeScNFG0tUDWlmulwI49SnymKLRd:BMseR7IexXM/ulRAsURd

Score

10^/10

systembc trojan

Malware Config

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3728 4804 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4912 wrote to memory of 4804	4912	rundll32.exe	rundll32.exe
PID 4912 wrote to memory of 4804	4912	rundll32.exe	rundll32.exe
PID 4912 wrote to memory of 4804	4912	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1cfd78420793c0fafebf0f4e1a09c1ff.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4912

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1cfd78420793c0fafebf0f4e1a09c1ff.dll,#1
2⤵
PID:4804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 580
3⤵
- Program crash
PID:3728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4804 -ip 4804
1⤵
PID:3900

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/4804-132-0x0000000000000000-mapping.dmp

Download
memory/4804-133-0x0000000010000000-0x000000001013B000-memory.dmp

Filesize
1.2MB

Download
memory/4804-135-0x00000000012C0000-0x00000000012C4000-memory.dmp

Filesize
16KB

Download
memory/4804-134-0x0000000002CD0000-0x0000000002DE8000-memory.dmp

Filesize
1.1MB

Download
memory/4804-136-0x0000000002CD0000-0x0000000002DE8000-memory.dmp

Filesize
1.1MB

Download