systembc | 2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5

General

Target

2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe
Size

233KB
MD5

6058208ac500aeee298159954796fd68
SHA1

915b8375b99b004b93e7a5af23dbcf6e3f6c55ae
SHA256

2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5
SHA512

24a8f8a21c39a432b46103ca91bd24ab7c13633915bbcc1dea9333cab4c448d152ed67221398033fe858b024ba620711e69b04914cfa2b2cbe789b25e69a5cca

Score

10^/10

systembc trojan upx

Malware Config

Extracted

Family

systembc

C2

dec15coma.com:4039

dec15coma.xyz:4039

Signatures

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

Processes:

brqfils.exe

pid process

4556 brqfils.exe

pid	process
4556	brqfils.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\ProgramData\wtenw\brqfils.exe	upx
C:\ProgramData\wtenw\brqfils.exe	upx

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

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

Connection Proxy
T1090

flow	ioc
25	api.ipify.org
26	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe

description	ioc	process
File opened for modification	C:\Windows\Tasks\brqfils.job	2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe
File created	C:\Windows\Tasks\brqfils.job	2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3164 2384 WerFault.exe 2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe

pid	pid_target	process	target process
3164	2384	WerFault.exe	2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe

pid	process
2384	2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe
2384	2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe

C:\Users\Admin\AppData\Local\Temp\2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe
"C:\Users\Admin\AppData\Local\Temp\2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 936
2⤵
- Program crash
PID:3164

C:\ProgramData\wtenw\brqfils.exe
C:\ProgramData\wtenw\brqfils.exe start
1⤵
- Executes dropped EXE
PID:4556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2384 -ip 2384
1⤵
PID:220

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

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Downloads

C:\ProgramData\wtenw\brqfils.exe
MD5
6058208ac500aeee298159954796fd68

SHA1
915b8375b99b004b93e7a5af23dbcf6e3f6c55ae

SHA256
2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5

SHA512
24a8f8a21c39a432b46103ca91bd24ab7c13633915bbcc1dea9333cab4c448d152ed67221398033fe858b024ba620711e69b04914cfa2b2cbe789b25e69a5cca

Download Submit
C:\ProgramData\wtenw\brqfils.exe
MD5
6058208ac500aeee298159954796fd68

SHA1
915b8375b99b004b93e7a5af23dbcf6e3f6c55ae

SHA256
2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5

SHA512
24a8f8a21c39a432b46103ca91bd24ab7c13633915bbcc1dea9333cab4c448d152ed67221398033fe858b024ba620711e69b04914cfa2b2cbe789b25e69a5cca

Download Submit
memory/2384-130-0x0000000005402000-0x0000000005408000-memory.dmp

Filesize
24KB

Download
memory/2384-131-0x0000000005402000-0x0000000005408000-memory.dmp

Filesize
24KB

Download
memory/2384-132-0x0000000000030000-0x0000000000039000-memory.dmp

Filesize
36KB

Download
memory/2384-133-0x0000000000400000-0x0000000005163000-memory.dmp

Filesize
77.4MB

Download
memory/4556-136-0x000000000537D000-0x0000000005384000-memory.dmp

Filesize
28KB

Download
memory/4556-137-0x000000000537D000-0x0000000005384000-memory.dmp

Filesize
28KB

Download
memory/4556-138-0x0000000000400000-0x0000000005163000-memory.dmp

Filesize
77.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads