systembc | e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8

General

Target

e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe
Size

356KB
MD5

c851a0d3a2cb3e759e85d73f48437fe1
SHA1

3210b9c823d8c1d75f2770884abc1c675db8081b
SHA256

e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8
SHA512

a3b42489df794cffe8b539199dcfcb18dead5d820c6325f0e75cdd40abe6e67309c6980a8667da6905b0aa6dc000306c8a778ce125c5e4b54f0036e95983a9a0

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

sdadvert197.com:4044

mexstat128.com:4044

Signatures

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

Processes:

vncgkjm.exe

pid process

4588 vncgkjm.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

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

Connection Proxy
T1090

pid	process
4588	vncgkjm.exe

flow	ioc
16	api.ipify.org
17	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe

description	ioc	process
File created	C:\Windows\Tasks\vncgkjm.job	e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe
File opened for modification	C:\Windows\Tasks\vncgkjm.job	e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe

Program crash 8 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
2228	4752	WerFault.exe	e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe
4116	4588	WerFault.exe	vncgkjm.exe
4496	4588	WerFault.exe	vncgkjm.exe
1280	4752	WerFault.exe	e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe
100	4752	WerFault.exe	e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe
1944	4588	WerFault.exe	vncgkjm.exe
2140	4588	WerFault.exe	vncgkjm.exe
3048	4752	WerFault.exe	e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe

pid	process
4752	e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe
4752	e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe

C:\Users\Admin\AppData\Local\Temp\e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe
"C:\Users\Admin\AppData\Local\Temp\e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:4752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 496
2⤵
- Program crash
PID:2228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 932
2⤵
- Program crash
PID:1280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 976
2⤵
- Program crash
PID:100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 504
2⤵
- Program crash
PID:3048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 4752 -ip 4752
1⤵
PID:860

C:\ProgramData\tqminjo\vncgkjm.exe
C:\ProgramData\tqminjo\vncgkjm.exe start
1⤵
- Executes dropped EXE
PID:4588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 484
2⤵
- Program crash
PID:4116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 776
2⤵
- Program crash
PID:4496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 880
2⤵
- Program crash
PID:1944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 864
2⤵
- Program crash
PID:2140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4588 -ip 4588
1⤵
PID:1520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4588 -ip 4588
1⤵
PID:4916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4752 -ip 4752
1⤵
PID:4148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4752 -ip 4752
1⤵
PID:636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 4588 -ip 4588
1⤵
PID:1936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4588 -ip 4588
1⤵
PID:4716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 4752 -ip 4752
1⤵
PID:4860

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\tqminjo\vncgkjm.exe
Filesize
356KB

MD5
c851a0d3a2cb3e759e85d73f48437fe1

SHA1
3210b9c823d8c1d75f2770884abc1c675db8081b

SHA256
e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8

SHA512
a3b42489df794cffe8b539199dcfcb18dead5d820c6325f0e75cdd40abe6e67309c6980a8667da6905b0aa6dc000306c8a778ce125c5e4b54f0036e95983a9a0

Download Submit
C:\ProgramData\tqminjo\vncgkjm.exe
Filesize
356KB

MD5
c851a0d3a2cb3e759e85d73f48437fe1

SHA1
3210b9c823d8c1d75f2770884abc1c675db8081b

SHA256
e813bbd838ee06d2af4c0ac30a87f040f763abc993c6139aa830c37d1a0310e8

SHA512
a3b42489df794cffe8b539199dcfcb18dead5d820c6325f0e75cdd40abe6e67309c6980a8667da6905b0aa6dc000306c8a778ce125c5e4b54f0036e95983a9a0

Download Submit
memory/4588-135-0x0000000000D33000-0x0000000000D3A000-memory.dmp

Filesize
28KB

Download
memory/4588-136-0x0000000000CB0000-0x0000000000CB9000-memory.dmp

Filesize
36KB

Download
memory/4588-137-0x0000000000400000-0x0000000000C33000-memory.dmp

Filesize
8.2MB

Download
memory/4752-130-0x0000000000D78000-0x0000000000D7F000-memory.dmp

Filesize
28KB

Download
memory/4752-131-0x0000000002970000-0x0000000002979000-memory.dmp

Filesize
36KB

Download
memory/4752-132-0x0000000000400000-0x0000000000C33000-memory.dmp

Filesize
8.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads