systembc | 4246b1740af95e953c8010a6d99c0ab72622b892bc1dbb955eec4067d90d7763 | Triage

Analysis

max time kernel
144s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
12-07-2023 09:29

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General

Target

tmp.exe
Size

283KB
MD5

373949447dfd88ce94f0d04cba6ea505
SHA1

b30b0268fa57ca3117957f99fa7372b244153306
SHA256

4246b1740af95e953c8010a6d99c0ab72622b892bc1dbb955eec4067d90d7763
SHA512

dfcdbf640ac89ae4c9efba10fe8260a4fa8354d1fd6d62f6625d0bec192dd21bb238d770d00c35a2b62d46d84f8445ffb415dd48a93023d70bac453bc50c8c88
SSDEEP

6144:J/y8+suv+onz8G+pqHxq8FNyMRn7HRGcdfMtVqgo:J/yZsvoz8G+QRq8fhN7y78

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

185.215.113.105:4001

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Drops file in Windows directory 2 IoCs

Processes:

tmp.exe

description ioc process

File opened for modification C:\Windows\Tasks\wow64.job tmp.exe
File created C:\Windows\Tasks\wow64.job tmp.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

5044 3948 WerFault.exe tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Drops file in Windows directory
PID:3948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 952
2⤵
- Program crash
PID:5044

C:\Users\Admin\AppData\Local\Temp\tmp.exe
C:\Users\Admin\AppData\Local\Temp\tmp.exe start
1⤵
PID:1468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3948 -ip 3948
1⤵
PID:1400

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1468-139-0x0000000000400000-0x0000000000B3A000-memory.dmp

Filesize
7.2MB

Download
memory/3948-135-0x0000000002870000-0x0000000002875000-memory.dmp

Filesize
20KB

Download
memory/3948-138-0x0000000000400000-0x0000000000B3A000-memory.dmp

Filesize
7.2MB

Download