systembc | 934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790

General

Target

934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790.exe
Size

90KB
MD5

6091938947f0a7196a622a0986000b7c
SHA1

c4fd87b56a47dc806689f585343b3ca3e4e552cd
SHA256

934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790
SHA512

0edc79e4dbba2751021b8cf935aa86d4ee441d79cf15a51647889ec0fdb01d46e314136e625fe394a1594bf45f6e50599a9736fa01d3b8f22a9a073b082e0402

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

advertrex20.xyz:4044

gentexman37.xyz:4044

Signatures

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

Processes:

ubscl.exe

pid process

2052 ubscl.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

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

Connection Proxy
T1090

pid	process
2052	ubscl.exe

flow	ioc
6	api.ipify.org
7	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790.exe

description	ioc	process
File opened for modification	C:\Windows\Tasks\ubscl.job	934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790.exe
File created	C:\Windows\Tasks\ubscl.job	934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2660 1196 WerFault.exe 934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790.exe

pid	pid_target	process	target process
2660	1196	WerFault.exe	934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790.exe

pid	process
1196	934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790.exe
1196	934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790.exe

C:\Users\Admin\AppData\Local\Temp\934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790.exe
"C:\Users\Admin\AppData\Local\Temp\934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:1196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1196 -s 952
2⤵
- Program crash
PID:2660

C:\ProgramData\sbjfgf\ubscl.exe
C:\ProgramData\sbjfgf\ubscl.exe start
1⤵
- Executes dropped EXE
PID:2052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1196 -ip 1196
1⤵
PID:2120

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\sbjfgf\ubscl.exe
Filesize
90KB

MD5
6091938947f0a7196a622a0986000b7c

SHA1
c4fd87b56a47dc806689f585343b3ca3e4e552cd

SHA256
934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790

SHA512
0edc79e4dbba2751021b8cf935aa86d4ee441d79cf15a51647889ec0fdb01d46e314136e625fe394a1594bf45f6e50599a9736fa01d3b8f22a9a073b082e0402

Download Submit
C:\ProgramData\sbjfgf\ubscl.exe
Filesize
90KB

MD5
6091938947f0a7196a622a0986000b7c

SHA1
c4fd87b56a47dc806689f585343b3ca3e4e552cd

SHA256
934e82163e404f59441c8c73ce0c46f7fa2a971f14dbefb33cd3132496dca790

SHA512
0edc79e4dbba2751021b8cf935aa86d4ee441d79cf15a51647889ec0fdb01d46e314136e625fe394a1594bf45f6e50599a9736fa01d3b8f22a9a073b082e0402

Download Submit
memory/1196-130-0x0000000003258000-0x000000000325F000-memory.dmp

Filesize
28KB

Download
memory/1196-131-0x0000000003258000-0x000000000325F000-memory.dmp

Filesize
28KB

Download
memory/1196-132-0x0000000003130000-0x0000000003139000-memory.dmp

Filesize
36KB

Download
memory/1196-133-0x0000000000400000-0x0000000002FA1000-memory.dmp

Filesize
43.6MB

Download
memory/2052-136-0x0000000003313000-0x0000000003319000-memory.dmp

Filesize
24KB

Download
memory/2052-137-0x0000000003313000-0x0000000003319000-memory.dmp

Filesize
24KB

Download
memory/2052-138-0x0000000000400000-0x0000000002FA1000-memory.dmp

Filesize
43.6MB

Download

Analysis

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