systembc | 6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2

Analysis

max time kernel
144s
max time network
164s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 20:24

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General

Target

JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe
Size

714.1MB
MD5

290a6dd1f1af92f4834d6b1a188ada23
SHA1

a92afa4834a5a96d118279d140b7f44b571f85cd
SHA256

6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2
SHA512

fefb2ea8552d66d95fceed2de2757d11f923502ace4a248f0b59019b3d63c336cccbff9b6df2f51a1388fa399b44ccebafe8c732f089726803616e65cbf0d41d
SSDEEP

49152:qGGimlWpqih97dqOTLBBH6xcUlUxPWlDAud:qGGvly97dqOPBhIZAud

Score

10^/10

systembc discovery trojan

Malware Config

Extracted

Family

systembc

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

Deletes itself 1 IoCs

pid	Process
2740	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2948	xamirav.exe

Loads dropped DLL 1 IoCs

pid	Process
2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2948 set thread context of 1040	2948	xamirav.exe	39

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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xamirav.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com

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
2740	cmd.exe
2708	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2708	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
2928	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe
2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe
2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe
2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe
2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe
2948	xamirav.exe
2948	xamirav.exe
2948	xamirav.exe
2948	xamirav.exe
2948	xamirav.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2928	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	31
PID 2352 wrote to memory of 2928	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	31
PID 2352 wrote to memory of 2928	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	31
PID 2352 wrote to memory of 2928	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	31
PID 2352 wrote to memory of 2948	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	33
PID 2352 wrote to memory of 2948	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	33
PID 2352 wrote to memory of 2948	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	33
PID 2352 wrote to memory of 2948	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	33
PID 2352 wrote to memory of 2740	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	34
PID 2352 wrote to memory of 2740	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	34
PID 2352 wrote to memory of 2740	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	34
PID 2352 wrote to memory of 2740	2352	JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe	34
PID 2740 wrote to memory of 2004	2740	cmd.exe	36
PID 2740 wrote to memory of 2004	2740	cmd.exe	36
PID 2740 wrote to memory of 2004	2740	cmd.exe	36
PID 2740 wrote to memory of 2004	2740	cmd.exe	36
PID 2740 wrote to memory of 2708	2740	cmd.exe	37
PID 2740 wrote to memory of 2708	2740	cmd.exe	37
PID 2740 wrote to memory of 2708	2740	cmd.exe	37
PID 2740 wrote to memory of 2708	2740	cmd.exe	37
PID 2948 wrote to memory of 2832	2948	xamirav.exe	38
PID 2948 wrote to memory of 2832	2948	xamirav.exe	38
PID 2948 wrote to memory of 2832	2948	xamirav.exe	38
PID 2948 wrote to memory of 2832	2948	xamirav.exe	38
PID 2948 wrote to memory of 2832	2948	xamirav.exe	38
PID 2948 wrote to memory of 2832	2948	xamirav.exe	38
PID 2948 wrote to memory of 2832	2948	xamirav.exe	38
PID 2948 wrote to memory of 1040	2948	xamirav.exe	39
PID 2948 wrote to memory of 1040	2948	xamirav.exe	39
PID 2948 wrote to memory of 1040	2948	xamirav.exe	39
PID 2948 wrote to memory of 1040	2948	xamirav.exe	39
PID 2948 wrote to memory of 1040	2948	xamirav.exe	39
PID 2948 wrote to memory of 1040	2948	xamirav.exe	39
PID 2948 wrote to memory of 1040	2948	xamirav.exe	39
PID 2948 wrote to memory of 1040	2948	xamirav.exe	39
PID 2948 wrote to memory of 1040	2948	xamirav.exe	39

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\system32\schtasks.exe" /create /tn COMSurrogate /f /sc onlogon /rl highest /tr "C:\Users\Admin\Quo nolowi\xamirav.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2928
- C:\Users\Admin\Quo nolowi\xamirav.exe
  "C:\Users\Admin\Quo nolowi\xamirav.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2948
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    PID:2832
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    PID:1040
- 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_6df1d82f487420429df0bc4cc748998ad7bc4c974c319bdbca5bd5120a7c5ee2.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2740
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2004
- - 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:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1040-19-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1040-22-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1040-21-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2352-0-0x0000000001F60000-0x0000000002743000-memory.dmp

Filesize
7.9MB

Download
memory/2352-3-0x0000000002750000-0x00000000028DF000-memory.dmp

Filesize
1.6MB

Download
memory/2352-2-0x0000000002750000-0x00000000028DF000-memory.dmp

Filesize
1.6MB

Download
memory/2352-4-0x0000000001F60000-0x0000000002743000-memory.dmp

Filesize
7.9MB

Download
memory/2352-5-0x0000000002750000-0x00000000028DF000-memory.dmp

Filesize
1.6MB

Download
memory/2352-1-0x0000000001F60000-0x0000000002743000-memory.dmp

Filesize
7.9MB

Download
memory/2352-15-0x0000000002750000-0x00000000028DF000-memory.dmp

Filesize
1.6MB

Download
memory/2948-13-0x00000000024D0000-0x0000000002CB3000-memory.dmp

Filesize
7.9MB

Download
memory/2948-18-0x00000000001D0000-0x0000000000227000-memory.dmp

Filesize
348KB

Download
memory/2948-17-0x00000000024D0000-0x0000000002CB3000-memory.dmp

Filesize
7.9MB

Download
memory/2948-16-0x0000000000BF0000-0x0000000000D7F000-memory.dmp

Filesize
1.6MB

Download
memory/2948-14-0x00000000024D0000-0x0000000002CB3000-memory.dmp

Filesize
7.9MB

Download