systembc | cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f

General

Target
JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
Size 402.7MB
Sample241230-vtflmatjdx
SHA256 cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f
MD5 19a99416b5f2e4c28d41ad2f13a368f4
SHA1 e55a948ad6d4051553642af6db0205a801168a33
SHA512 1c2101f74c30828949432e657b5d6a204c85edb8e3856b857703ca75c429ca64a557717634b0468f49ce32eedf0144d979770faf8ddeadf532b04181c086c1de
SSDEEP 24576:EaCZ2GmWV3uRR7xdMhdQ4X9vbEtA4cB7cyZLTokngqiFMazkuojfm+dNz9eEwiI:uZ2GmWFuRRlyhPXIRcpcaxgnzZojf6
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

systembc discovery trojan

Malware Config

Extracted

Family

systembc

C2

185.209.30.138:4127
192.168.1.149:4127

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Systembc family
systembc

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe

Executes dropped EXE 1 IoCs

pid	Process
4248	daj wiquodo vihe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4248 set thread context of 3992	4248	daj wiquodo vihe.exe	106

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	daj wiquodo vihe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
452	cmd.exe
3008	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3008	PING.EXE

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2720	schtasks.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
4248	daj wiquodo vihe.exe
4248	daj wiquodo vihe.exe
4248	daj wiquodo vihe.exe
4248	daj wiquodo vihe.exe
4248	daj wiquodo vihe.exe
4248	daj wiquodo vihe.exe
4248	daj wiquodo vihe.exe
4248	daj wiquodo vihe.exe
4248	daj wiquodo vihe.exe
4248	daj wiquodo vihe.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3292 wrote to memory of 2720	3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe	99
PID 3292 wrote to memory of 2720	3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe	99
PID 3292 wrote to memory of 2720	3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe	99
PID 3292 wrote to memory of 4248	3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe	101
PID 3292 wrote to memory of 4248	3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe	101
PID 3292 wrote to memory of 4248	3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe	101
PID 3292 wrote to memory of 452	3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe	102
PID 3292 wrote to memory of 452	3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe	102
PID 3292 wrote to memory of 452	3292	JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe	102
PID 452 wrote to memory of 2556	452	cmd.exe	104
PID 452 wrote to memory of 2556	452	cmd.exe	104
PID 452 wrote to memory of 2556	452	cmd.exe	104
PID 452 wrote to memory of 3008	452	cmd.exe	105
PID 452 wrote to memory of 3008	452	cmd.exe	105
PID 452 wrote to memory of 3008	452	cmd.exe	105
PID 4248 wrote to memory of 3992	4248	daj wiquodo vihe.exe	106
PID 4248 wrote to memory of 3992	4248	daj wiquodo vihe.exe	106
PID 4248 wrote to memory of 3992	4248	daj wiquodo vihe.exe	106
PID 4248 wrote to memory of 3992	4248	daj wiquodo vihe.exe	106
PID 4248 wrote to memory of 3992	4248	daj wiquodo vihe.exe	106

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3292
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\system32\schtasks.exe" /create /tn COMSurrogate /f /sc onlogon /rl highest /tr "C:\Users\Admin\Xal ditetoh quehisa rayak loyaka pov\daj wiquodo vihe.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2720
- C:\Users\Admin\Xal ditetoh quehisa rayak loyaka pov\daj wiquodo vihe.exe
  "C:\Users\Admin\Xal ditetoh quehisa rayak loyaka pov\daj wiquodo vihe.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4248
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    PID:3992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c chcp 65001 && ping 127.0.0.1 && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cc1fc9b4d7144e3842c3259f4b65c1c3113e6be2452c43cf2b55c7e7d84a5c1f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:452
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2556
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3008