systembc | d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3

General

Target

d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3.exe
Size

168KB
MD5

2d8166616d74027c23e29f30b41922cb
SHA1

7ab3a4dd77bb7716bf3d7c106e447108796a70b6
SHA256

d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3
SHA512

24cfe8f631a2643b4d166bcf41b79839f71df9a1bd52563742c5fb917d4d130f2784848e750b70d1e441e17339b9914ee5dbdd33417a7bab5caae83b0001ec27

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

26asdcgd.com:4039

26asdcgd.xyz:4039

Signatures

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

Processes:

rqxhofe.exe

pid process

2140 rqxhofe.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

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

Connection Proxy
T1090

pid	process
2140	rqxhofe.exe

flow	ioc
17	api.ipify.org
18	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3.exe

description	ioc	process
File created	C:\Windows\Tasks\rqxhofe.job	d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3.exe
File opened for modification	C:\Windows\Tasks\rqxhofe.job	d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4012 4256 WerFault.exe d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3.exe

pid	pid_target	process	target process
4012	4256	WerFault.exe	d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3.exe

pid	process
4256	d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3.exe
4256	d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3.exe

C:\Users\Admin\AppData\Local\Temp\d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3.exe
"C:\Users\Admin\AppData\Local\Temp\d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:4256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4256 -s 480
2⤵
- Program crash
PID:4012

C:\ProgramData\jxmriix\rqxhofe.exe
C:\ProgramData\jxmriix\rqxhofe.exe start
1⤵
- Executes dropped EXE
PID:2140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4256 -ip 4256
1⤵
PID:4528

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\jxmriix\rqxhofe.exe
Filesize
168KB

MD5
2d8166616d74027c23e29f30b41922cb

SHA1
7ab3a4dd77bb7716bf3d7c106e447108796a70b6

SHA256
d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3

SHA512
24cfe8f631a2643b4d166bcf41b79839f71df9a1bd52563742c5fb917d4d130f2784848e750b70d1e441e17339b9914ee5dbdd33417a7bab5caae83b0001ec27

Download Submit
C:\ProgramData\jxmriix\rqxhofe.exe
Filesize
168KB

MD5
2d8166616d74027c23e29f30b41922cb

SHA1
7ab3a4dd77bb7716bf3d7c106e447108796a70b6

SHA256
d0d3a4d35f46f3a7ed5ef913b46afdcf80e2ed2a226a20cbec81115454f27dd3

SHA512
24cfe8f631a2643b4d166bcf41b79839f71df9a1bd52563742c5fb917d4d130f2784848e750b70d1e441e17339b9914ee5dbdd33417a7bab5caae83b0001ec27

Download Submit
memory/2140-136-0x00000000006E8000-0x00000000006EE000-memory.dmp

Filesize
24KB

Download
memory/2140-137-0x00000000006E8000-0x00000000006EE000-memory.dmp

Filesize
24KB

Download
memory/2140-138-0x0000000000400000-0x00000000004E4000-memory.dmp

Filesize
912KB

Download
memory/4256-130-0x00000000005BE000-0x00000000005C5000-memory.dmp

Filesize
28KB

Download
memory/4256-131-0x00000000005BE000-0x00000000005C5000-memory.dmp

Filesize
28KB

Download
memory/4256-132-0x00000000006A0000-0x00000000006A9000-memory.dmp

Filesize
36KB

Download
memory/4256-133-0x0000000000400000-0x00000000004E4000-memory.dmp

Filesize
912KB

Download

Analysis

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