systembc | 61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a

General

Target

61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a.exe
Size

70KB
MD5

f195e871b1ab880b23404610b2b72020
SHA1

e1098fe407ab6c57d42cb30b31959eb1c9d3eacf
SHA256

61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a
SHA512

1ceb677353244633fe6d0ee7c253e15c8bab140f01cc82374024e58ae48fd46218f3049e636de1830f671b83f4d619f2253ee266a3820662d5c02a371af8737e

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

asdasd08.com:4039

asdasd08.xyz:4039

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Executes dropped EXE 1 IoCs

Processes:

sxcg.exe

pid process

2716 sxcg.exe
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

24 api.ipify.org
23 api.ipify.org
Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Connection Proxy
T1090

pid	process
2716	sxcg.exe

flow	ioc
24	api.ipify.org
23	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a.exe

description	ioc	process
File opened for modification	C:\Windows\Tasks\sxcg.job	61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a.exe
File created	C:\Windows\Tasks\sxcg.job	61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2160 1580 WerFault.exe 61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a.exe

pid	pid_target	process	target process
2160	1580	WerFault.exe	61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a.exe

pid	process
1580	61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a.exe
1580	61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a.exe

C:\Users\Admin\AppData\Local\Temp\61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a.exe
"C:\Users\Admin\AppData\Local\Temp\61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:1580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1580 -s 484
2⤵
- Program crash
PID:2160

C:\ProgramData\pgbvj\sxcg.exe
C:\ProgramData\pgbvj\sxcg.exe start
1⤵
- Executes dropped EXE
PID:2716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1580 -ip 1580
1⤵
PID:4928

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Connection Proxy

1

T1090

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Connection Proxy

1

T1090

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\pgbvj\sxcg.exe
Filesize
70KB

MD5
f195e871b1ab880b23404610b2b72020

SHA1
e1098fe407ab6c57d42cb30b31959eb1c9d3eacf

SHA256
61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a

SHA512
1ceb677353244633fe6d0ee7c253e15c8bab140f01cc82374024e58ae48fd46218f3049e636de1830f671b83f4d619f2253ee266a3820662d5c02a371af8737e

Download Submit
C:\ProgramData\pgbvj\sxcg.exe
Filesize
70KB

MD5
f195e871b1ab880b23404610b2b72020

SHA1
e1098fe407ab6c57d42cb30b31959eb1c9d3eacf

SHA256
61910440b8efa275a9aeb143b4d0441b4f67900f8710e8464e4dc4795739268a

SHA512
1ceb677353244633fe6d0ee7c253e15c8bab140f01cc82374024e58ae48fd46218f3049e636de1830f671b83f4d619f2253ee266a3820662d5c02a371af8737e

Download Submit
memory/1580-134-0x0000000000648000-0x000000000064F000-memory.dmp

Filesize
28KB

Download
memory/1580-135-0x0000000000648000-0x000000000064F000-memory.dmp

Filesize
28KB

Download
memory/1580-136-0x0000000000620000-0x0000000000629000-memory.dmp

Filesize
36KB

Download
memory/1580-137-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2716-140-0x00000000007C3000-0x00000000007C9000-memory.dmp

Filesize
24KB

Download
memory/2716-142-0x0000000000720000-0x0000000000729000-memory.dmp

Filesize
36KB

Download
memory/2716-141-0x00000000007C3000-0x00000000007C9000-memory.dmp

Filesize
24KB

Download
memory/2716-143-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

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