systembc | bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd

General

Target

bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd.exe
Size

234KB
MD5

f36c144d3572825d5a4bbe01fc6b2e5f
SHA1

13c0276832e96446fc927cf77b057194a7326cc6
SHA256

bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd
SHA512

666346ee29abf0caa8314226c421a2ca358d8239ecc59c8e7b5ebe8fdeb2ccb0fab39f528c5bd0042d47dfcf2061e99c36363b10ef905e48f4ad129574ca7181

Score

10^/10

systembc trojan upx

Malware Config

Extracted

Family

systembc

C2

dec15coma.com:4039

dec15coma.xyz:4039

Signatures

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

Processes:

wowlx.exe

pid process

268 wowlx.exe

pid	process
268	wowlx.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
C:\ProgramData\slvhs\wowlx.exe	upx
C:\ProgramData\slvhs\wowlx.exe	upx

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

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

Connection Proxy
T1090

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

Drops file in Windows directory 2 IoCs

Processes:

bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd.exe

description	ioc	process
File created	C:\Windows\Tasks\wowlx.job	bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd.exe
File opened for modification	C:\Windows\Tasks\wowlx.job	bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd.exe

pid process

1988 bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd.exe

pid	process
1988	bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 1792 wrote to memory of 268	1792	taskeng.exe	wowlx.exe
PID 1792 wrote to memory of 268	1792	taskeng.exe	wowlx.exe
PID 1792 wrote to memory of 268	1792	taskeng.exe	wowlx.exe
PID 1792 wrote to memory of 268	1792	taskeng.exe	wowlx.exe

C:\Users\Admin\AppData\Local\Temp\bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd.exe
"C:\Users\Admin\AppData\Local\Temp\bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:1988

C:\Windows\system32\taskeng.exe
taskeng.exe {0C10CC04-5E2D-42FE-BB05-291C4C2EE762} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1792

C:\ProgramData\slvhs\wowlx.exe
C:\ProgramData\slvhs\wowlx.exe start
2⤵
- Executes dropped EXE
PID:268

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

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Downloads

C:\ProgramData\slvhs\wowlx.exe
MD5
f36c144d3572825d5a4bbe01fc6b2e5f

SHA1
13c0276832e96446fc927cf77b057194a7326cc6

SHA256
bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd

SHA512
666346ee29abf0caa8314226c421a2ca358d8239ecc59c8e7b5ebe8fdeb2ccb0fab39f528c5bd0042d47dfcf2061e99c36363b10ef905e48f4ad129574ca7181

Download Submit
C:\ProgramData\slvhs\wowlx.exe
MD5
f36c144d3572825d5a4bbe01fc6b2e5f

SHA1
13c0276832e96446fc927cf77b057194a7326cc6

SHA256
bbd8d78a0c241948acda56a12e92efcbeaff2b89443c33135113ccd508e646bd

SHA512
666346ee29abf0caa8314226c421a2ca358d8239ecc59c8e7b5ebe8fdeb2ccb0fab39f528c5bd0042d47dfcf2061e99c36363b10ef905e48f4ad129574ca7181

Download Submit
memory/268-61-0x0000000005288000-0x000000000528F000-memory.dmp

Filesize
28KB

Download
memory/268-64-0x0000000000030000-0x0000000000039000-memory.dmp

Filesize
36KB

Download
memory/268-63-0x0000000005288000-0x000000000528F000-memory.dmp

Filesize
28KB

Download
memory/268-65-0x0000000000400000-0x0000000005163000-memory.dmp

Filesize
77.4MB

Download
memory/1988-54-0x00000000055E9000-0x00000000055EF000-memory.dmp

Filesize
24KB

Download
memory/1988-55-0x00000000055E9000-0x00000000055EF000-memory.dmp

Filesize
24KB

Download
memory/1988-56-0x0000000000030000-0x0000000000039000-memory.dmp

Filesize
36KB

Download
memory/1988-57-0x0000000076BC1000-0x0000000076BC3000-memory.dmp

Filesize
8KB

Download
memory/1988-58-0x0000000000400000-0x0000000005163000-memory.dmp

Filesize
77.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads