systembc | 0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15

General

Target

0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15.exe
Size

87KB
MD5

0314c338de096680748e36513fa6385f
SHA1

b73d4dfc157e69d6d8a90d1d5cfa1a34453f73c1
SHA256

0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15
SHA512

8000e73b976cc6d23aa5015f401fda8f3eee5768c4d79c4715ecff9644cf183a17248f85b2b65379c9a62aa4a388ab23b15e6765043563bdb9f63c2ffcfee5f6

Score

10^/10

systembc suricata 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
suricata: ET MALWARE Observed SystemBC CnC Domain in DNS Query
suricata: ET MALWARE Observed SystemBC CnC Domain in DNS Query
suricata
Executes dropped EXE 1 IoCs

Processes:

mmcxvu.exe

pid process

1720 mmcxvu.exe
Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

6 ip4.seeip.org
7 ip4.seeip.org
4 api.ipify.org
5 api.ipify.org
Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Connection Proxy
T1090

pid	process
1720	mmcxvu.exe

flow	ioc
6	ip4.seeip.org
7	ip4.seeip.org
4	api.ipify.org
5	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15.exe

description	ioc	process
File created	C:\Windows\Tasks\mmcxvu.job	0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15.exe
File opened for modification	C:\Windows\Tasks\mmcxvu.job	0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15.exe

pid process

1668 0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15.exe

pid	process
1668	0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 1312 wrote to memory of 1720	1312	taskeng.exe	mmcxvu.exe
PID 1312 wrote to memory of 1720	1312	taskeng.exe	mmcxvu.exe
PID 1312 wrote to memory of 1720	1312	taskeng.exe	mmcxvu.exe
PID 1312 wrote to memory of 1720	1312	taskeng.exe	mmcxvu.exe

C:\Users\Admin\AppData\Local\Temp\0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15.exe
"C:\Users\Admin\AppData\Local\Temp\0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:1668

C:\Windows\system32\taskeng.exe
taskeng.exe {0A14B2CC-9F7D-408E-929A-7CC0F7266CDD} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1312

C:\ProgramData\dimfx\mmcxvu.exe
C:\ProgramData\dimfx\mmcxvu.exe start
2⤵
- Executes dropped EXE
PID:1720

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Connection Proxy

1

T1090

Impact

Replay Monitor

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Downloads

C:\ProgramData\dimfx\mmcxvu.exe
Filesize
87KB

MD5
0314c338de096680748e36513fa6385f

SHA1
b73d4dfc157e69d6d8a90d1d5cfa1a34453f73c1

SHA256
0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15

SHA512
8000e73b976cc6d23aa5015f401fda8f3eee5768c4d79c4715ecff9644cf183a17248f85b2b65379c9a62aa4a388ab23b15e6765043563bdb9f63c2ffcfee5f6

Download Submit
C:\ProgramData\dimfx\mmcxvu.exe
Filesize
87KB

MD5
0314c338de096680748e36513fa6385f

SHA1
b73d4dfc157e69d6d8a90d1d5cfa1a34453f73c1

SHA256
0eec212a21b588ae10cc4e1f55c4dddc4e652e47062b46ee8c51a154bc895b15

SHA512
8000e73b976cc6d23aa5015f401fda8f3eee5768c4d79c4715ecff9644cf183a17248f85b2b65379c9a62aa4a388ab23b15e6765043563bdb9f63c2ffcfee5f6

Download Submit
memory/1668-54-0x0000000075401000-0x0000000075403000-memory.dmp

Filesize
8KB

Download
memory/1668-56-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/1668-55-0x000000000307B000-0x0000000003082000-memory.dmp

Filesize
28KB

Download
memory/1668-57-0x0000000000400000-0x0000000002FA1000-memory.dmp

Filesize
43.6MB

Download
memory/1720-59-0x0000000000000000-mapping.dmp

Download
memory/1720-62-0x000000000026B000-0x0000000000272000-memory.dmp

Filesize
28KB

Download
memory/1720-63-0x0000000000400000-0x0000000002FA1000-memory.dmp

Filesize
43.6MB

Download

Analysis

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