systembc | d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8

General

Target

d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8.exe
Size

140KB
MD5

7200a81b9e2065e853734078a4402d03
SHA1

10164b6200c431f33595dff706fe6d2ab12323fb
SHA256

d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8
SHA512

e4e5b73d9b2831a750d9018383599b8fbde21d207596e9203e196143d05e0c2e32b7425d62c5f6bc27fc7e912659a394e29d5eab7c2d5e4f1e597f7d79c34529

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:

lpbvaqe.exe

pid process

2920 lpbvaqe.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
2920	lpbvaqe.exe

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

Drops file in Windows directory 2 IoCs

Processes:

d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8.exe

description	ioc	process
File created	C:\Windows\Tasks\lpbvaqe.job	d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8.exe
File opened for modification	C:\Windows\Tasks\lpbvaqe.job	d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2264 2272 WerFault.exe d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8.exe

pid	pid_target	process	target process
2264	2272	WerFault.exe	d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8.exe

pid	process
2272	d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8.exe
2272	d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8.exe

C:\Users\Admin\AppData\Local\Temp\d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8.exe
"C:\Users\Admin\AppData\Local\Temp\d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 492
2⤵
- Program crash
PID:2264

C:\ProgramData\pfarxfm\lpbvaqe.exe
C:\ProgramData\pfarxfm\lpbvaqe.exe start
1⤵
- Executes dropped EXE
PID:2920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2272 -ip 2272
1⤵
PID:4956

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\pfarxfm\lpbvaqe.exe
Filesize
140KB

MD5
7200a81b9e2065e853734078a4402d03

SHA1
10164b6200c431f33595dff706fe6d2ab12323fb

SHA256
d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8

SHA512
e4e5b73d9b2831a750d9018383599b8fbde21d207596e9203e196143d05e0c2e32b7425d62c5f6bc27fc7e912659a394e29d5eab7c2d5e4f1e597f7d79c34529

Download Submit
C:\ProgramData\pfarxfm\lpbvaqe.exe
Filesize
140KB

MD5
7200a81b9e2065e853734078a4402d03

SHA1
10164b6200c431f33595dff706fe6d2ab12323fb

SHA256
d5d72184ddca524ef2b1c074e50a90a6e241cc0be01f7e5625979a693a6ee1e8

SHA512
e4e5b73d9b2831a750d9018383599b8fbde21d207596e9203e196143d05e0c2e32b7425d62c5f6bc27fc7e912659a394e29d5eab7c2d5e4f1e597f7d79c34529

Download Submit
memory/2272-124-0x00000000030FE000-0x0000000003105000-memory.dmp

Filesize
28KB

Download
memory/2272-125-0x00000000030FE000-0x0000000003105000-memory.dmp

Filesize
28KB

Download
memory/2272-126-0x00000000030C0000-0x00000000030C9000-memory.dmp

Filesize
36KB

Download
memory/2272-127-0x0000000000400000-0x0000000002FAF000-memory.dmp

Filesize
43.7MB

Download
memory/2920-130-0x0000000003028000-0x000000000302E000-memory.dmp

Filesize
24KB

Download
memory/2920-131-0x0000000003028000-0x000000000302E000-memory.dmp

Filesize
24KB

Download
memory/2920-132-0x0000000002FF0000-0x0000000002FF9000-memory.dmp

Filesize
36KB

Download
memory/2920-133-0x0000000000400000-0x0000000002FAF000-memory.dmp

Filesize
43.7MB

Download

Analysis

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