systembc | 7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3

General

Target

7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3.exe
Size

129KB
MD5

6a122e54deeb8a43546f3c638bdad976
SHA1

fa47f6e797541e61050ad7e43822c931f8771b41
SHA256

7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3
SHA512

abd86940d715ca0757ca485a4c8c9e823d236ea92db87f131dc0990e2e79095c627aa243017f439840fc17bdb9cea882ae84a310101c024ba62a94ce1850175b

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

dasd13d.com:4035

dasd13d.xyz:4035

Signatures

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

Processes:

hddbox.exe

pid process

2612 hddbox.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

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

Connection Proxy
T1090

pid	process
2612	hddbox.exe

flow	ioc
51	api.ipify.org
50	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3.exe

description	ioc	process
File created	C:\Windows\Tasks\hddbox.job	7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3.exe
File opened for modification	C:\Windows\Tasks\hddbox.job	7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4052 4300 WerFault.exe 7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3.exe

pid	pid_target	process	target process
4052	4300	WerFault.exe	7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3.exe

pid	process
4300	7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3.exe
4300	7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3.exe

C:\Users\Admin\AppData\Local\Temp\7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3.exe
"C:\Users\Admin\AppData\Local\Temp\7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:4300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4300 -s 948
2⤵
- Program crash
PID:4052

C:\ProgramData\slnb\hddbox.exe
C:\ProgramData\slnb\hddbox.exe start
1⤵
- Executes dropped EXE
PID:2612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4300 -ip 4300
1⤵
PID:4452

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\slnb\hddbox.exe
Filesize
129KB

MD5
6a122e54deeb8a43546f3c638bdad976

SHA1
fa47f6e797541e61050ad7e43822c931f8771b41

SHA256
7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3

SHA512
abd86940d715ca0757ca485a4c8c9e823d236ea92db87f131dc0990e2e79095c627aa243017f439840fc17bdb9cea882ae84a310101c024ba62a94ce1850175b

Download Submit
C:\ProgramData\slnb\hddbox.exe
Filesize
129KB

MD5
6a122e54deeb8a43546f3c638bdad976

SHA1
fa47f6e797541e61050ad7e43822c931f8771b41

SHA256
7dc7d64d4102b3d131ed39640ba2c5ac043235feeaf223880a783a6b87d3c6b3

SHA512
abd86940d715ca0757ca485a4c8c9e823d236ea92db87f131dc0990e2e79095c627aa243017f439840fc17bdb9cea882ae84a310101c024ba62a94ce1850175b

Download Submit
memory/2612-136-0x0000000000BF2000-0x0000000000BF9000-memory.dmp

Filesize
28KB

Download
memory/2612-137-0x0000000000400000-0x00000000008BF000-memory.dmp

Filesize
4.7MB

Download
memory/4300-131-0x0000000000B68000-0x0000000000B6F000-memory.dmp

Filesize
28KB

Download
memory/4300-132-0x0000000000B10000-0x0000000000B19000-memory.dmp

Filesize
36KB

Download
memory/4300-133-0x0000000000400000-0x00000000008BF000-memory.dmp

Filesize
4.7MB

Download

Analysis

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