systembc | 8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76

General

Target

8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76.exe
Size

138KB
MD5

6349f47feb74e0574f263830bd2de0ee
SHA1

dd9177300210b0647306b31329b2f760dc6e0c21
SHA256

8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76
SHA512

263aa7df76c5ea71d5716059e01e89e90b4deafb0937f9a84570b90d79c4929b6cca72c4c498494d03d98c01b11510ef7630f377226c1003cf8e9c81b574d026

Score

10^/10

systembc trojan upx

Malware Config

Extracted

Family

systembc

C2

admex175x.xyz:4044

servx278x.xyz:4044

Signatures

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

Processes:

jbwqm.exe

pid process

1344 jbwqm.exe

pid	process
1344	jbwqm.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
C:\ProgramData\jaishjq\jbwqm.exe	upx
C:\ProgramData\jaishjq\jbwqm.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

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

Connection Proxy
T1090

flow	ioc
28	api.ipify.org
29	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76.exe

description	ioc	process
File created	C:\Windows\Tasks\jbwqm.job	8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76.exe
File opened for modification	C:\Windows\Tasks\jbwqm.job	8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

988 4532 WerFault.exe 8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76.exe

pid	pid_target	process	target process
988	4532	WerFault.exe	8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76.exe

pid	process
4532	8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76.exe
4532	8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76.exe

C:\Users\Admin\AppData\Local\Temp\8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76.exe
"C:\Users\Admin\AppData\Local\Temp\8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:4532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 480
2⤵
- Program crash
PID:988

C:\ProgramData\jaishjq\jbwqm.exe
C:\ProgramData\jaishjq\jbwqm.exe start
1⤵
- Executes dropped EXE
PID:1344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4532 -ip 4532
1⤵
PID:1972

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\jaishjq\jbwqm.exe
Filesize
138KB

MD5
6349f47feb74e0574f263830bd2de0ee

SHA1
dd9177300210b0647306b31329b2f760dc6e0c21

SHA256
8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76

SHA512
263aa7df76c5ea71d5716059e01e89e90b4deafb0937f9a84570b90d79c4929b6cca72c4c498494d03d98c01b11510ef7630f377226c1003cf8e9c81b574d026

Download Submit
C:\ProgramData\jaishjq\jbwqm.exe
Filesize
138KB

MD5
6349f47feb74e0574f263830bd2de0ee

SHA1
dd9177300210b0647306b31329b2f760dc6e0c21

SHA256
8684ded985154dee21b01d6ffe6d8a0ded49fcaa3dcd23937374310d7cae6d76

SHA512
263aa7df76c5ea71d5716059e01e89e90b4deafb0937f9a84570b90d79c4929b6cca72c4c498494d03d98c01b11510ef7630f377226c1003cf8e9c81b574d026

Download Submit
memory/1344-135-0x0000000004F65000-0x0000000004F6C000-memory.dmp

Filesize
28KB

Download
memory/1344-136-0x0000000004DA0000-0x0000000004DA9000-memory.dmp

Filesize
36KB

Download
memory/1344-137-0x0000000000400000-0x0000000004D7C000-memory.dmp

Filesize
73.5MB

Download
memory/4532-130-0x0000000004E2A000-0x0000000004E31000-memory.dmp

Filesize
28KB

Download
memory/4532-131-0x0000000004DE0000-0x0000000004DE9000-memory.dmp

Filesize
36KB

Download
memory/4532-132-0x0000000000400000-0x0000000004D7C000-memory.dmp

Filesize
73.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads