systembc | 318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd

Analysis

max time kernel
144s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
28/07/2024, 07:02

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General

Target
0dc61438b79668900bd081bac6109760_JaffaCakes118.exe
Size 350KB
Sample240728-htwlmaxeme
SHA256 318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd
MD5 0dc61438b79668900bd081bac6109760
SHA1 2ee66fd972c2d28ad30775971ba95056951910f0
SHA512 467b352ce6188e6126050c229cd47b526e83ef3535449c3f02b70491e159523d7cc8ebb28caab4e8d98627a22a0af1faf13b134072309dfe56ad175d18177ca7
SSDEEP 6144:RoX0oZ+rm/OV6ZH7XYuB4xpuMadbr2X3f+gOkXdhFr:Ry0xrm/h7XYuWCMaV2XWgO8hFr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

systembc discovery trojan

Malware Config

Extracted

Family

systembc

knock0909.monster:4035
knock0909.xyz:4035

Signatures

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

Executes dropped EXE 4 IoCs

pid	Process
1572	gpxhtgs.exe
1480	gpxhtgs.exe
3056	gpxhtgs.exe
1756	gpxhtgs.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.

flow	ioc
9	api.ipify.org
10	api.ipify.org

Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Proxy
T1090

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 3504	2736	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe	84
PID 1572 set thread context of 1480	1572	gpxhtgs.exe	86
PID 3056 set thread context of 1756	3056	gpxhtgs.exe	89

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\gpxhtgs.job	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe
File opened for modification	C:\Windows\Tasks\gpxhtgs.job	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	gpxhtgs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gpxhtgs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gpxhtgs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3504	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe
3504	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 3504	2736	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe	84
PID 2736 wrote to memory of 3504	2736	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe	84
PID 2736 wrote to memory of 3504	2736	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe	84
PID 2736 wrote to memory of 3504	2736	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe	84
PID 2736 wrote to memory of 3504	2736	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe	84
PID 2736 wrote to memory of 3504	2736	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe	84
PID 2736 wrote to memory of 3504	2736	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe	84
PID 2736 wrote to memory of 3504	2736	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe	84
PID 2736 wrote to memory of 3504	2736	0dc61438b79668900bd081bac6109760_JaffaCakes118.exe	84
PID 1572 wrote to memory of 1480	1572	gpxhtgs.exe	86
PID 1572 wrote to memory of 1480	1572	gpxhtgs.exe	86
PID 1572 wrote to memory of 1480	1572	gpxhtgs.exe	86
PID 1572 wrote to memory of 1480	1572	gpxhtgs.exe	86
PID 1572 wrote to memory of 1480	1572	gpxhtgs.exe	86
PID 1572 wrote to memory of 1480	1572	gpxhtgs.exe	86
PID 1572 wrote to memory of 1480	1572	gpxhtgs.exe	86
PID 1572 wrote to memory of 1480	1572	gpxhtgs.exe	86
PID 1572 wrote to memory of 1480	1572	gpxhtgs.exe	86
PID 3056 wrote to memory of 1756	3056	gpxhtgs.exe	89
PID 3056 wrote to memory of 1756	3056	gpxhtgs.exe	89
PID 3056 wrote to memory of 1756	3056	gpxhtgs.exe	89
PID 3056 wrote to memory of 1756	3056	gpxhtgs.exe	89
PID 3056 wrote to memory of 1756	3056	gpxhtgs.exe	89
PID 3056 wrote to memory of 1756	3056	gpxhtgs.exe	89
PID 3056 wrote to memory of 1756	3056	gpxhtgs.exe	89
PID 3056 wrote to memory of 1756	3056	gpxhtgs.exe	89
PID 3056 wrote to memory of 1756	3056	gpxhtgs.exe	89

C:\Users\Admin\AppData\Local\Temp\0dc61438b79668900bd081bac6109760_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0dc61438b79668900bd081bac6109760_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\AppData\Local\Temp\0dc61438b79668900bd081bac6109760_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\0dc61438b79668900bd081bac6109760_JaffaCakes118.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3504

C:\ProgramData\gqqeqp\gpxhtgs.exe
C:\ProgramData\gqqeqp\gpxhtgs.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1572
- C:\ProgramData\gqqeqp\gpxhtgs.exe
  C:\ProgramData\gqqeqp\gpxhtgs.exe start
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1480

C:\ProgramData\gqqeqp\gpxhtgs.exe
C:\ProgramData\gqqeqp\gpxhtgs.exe start
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3056
- C:\ProgramData\gqqeqp\gpxhtgs.exe
  C:\ProgramData\gqqeqp\gpxhtgs.exe start
  2⤵
  - Executes dropped EXE
  PID:1756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Proxy

T1090

Exfiltration

Impact

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Downloads

gpxhtgs.exe

Path C:\ProgramData\gqqeqp\gpxhtgs.exe
Size 350KB
SHA256 318e0bd67ccbf40f50b848831fb2885b161e68acdfaaa0c619c79b3912af2ecd
MD5 0dc61438b79668900bd081bac6109760
SHA1 2ee66fd972c2d28ad30775971ba95056951910f0
SHA512 467b352ce6188e6126050c229cd47b526e83ef3535449c3f02b70491e159523d7cc8ebb28caab4e8d98627a22a0af1faf13b134072309dfe56ad175d18177ca7
SSDEEP 6144:RoX0oZ+rm/OV6ZH7XYuB4xpuMadbr2X3f+gOkXdhFr:Ry0xrm/h7XYuWCMaV2XWgO8hFr
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1572-17-0x0000000000F22000-0x0000000000F28000-memory.dmp

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memory/2736-1-0x0000000000E50000-0x0000000000F50000-memory.dmp

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memory/2736-2-0x0000000000D10000-0x0000000000D1A000-memory.dmp

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memory/3056-38-0x0000000000400000-0x0000000000C35000-memory.dmp

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memory/3056-42-0x0000000000400000-0x0000000000C35000-memory.dmp

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memory/3504-3-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/3504-5-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/3504-7-0x0000000000400000-0x000000000040B000-memory.dmp

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