systembc | 21aaa5319a6729df0581203a0782ead837b848387e44cd1844ca8e19882a50af

Analysis

max time kernel
123s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 01:25

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General

Target

Ewpeloxttug.exe
Size

2.2MB
MD5

23c8cb1226c61a164d7518218c837b81
SHA1

45ea74832e487bacb788189c04661b29a71e86b5
SHA256

21aaa5319a6729df0581203a0782ead837b848387e44cd1844ca8e19882a50af
SHA512

8e219108c05966ec8ee6bc2ce2fb40c4aedce6614e65970c356e4f840e88720188c762aaa4451c2f5f1fa1bbc14136ecbcd1f4c9f3b1a5fccc0ab053a37bcc21
SSDEEP

24576:wqDdns3FYYhWxL3rc/+rhm+qx6GuQ5qGPVmTy9xMNWgJ/AICqQ9pEsePeHMSPs2f:1iD

Score

10^/10

systembc discovery trojan

Malware Config

Extracted

Family

systembc

claywyaeropumps.com

178.132.2.10

Attributes

dns
5.132.191.104

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 3 IoCs

Processes:

Ewpeloxttug.exeagnwj.exeagnwj.exe

description	pid	Process	procid_target
PID 780 created 3448	780	Ewpeloxttug.exe	56
PID 3624 created 3448	3624	agnwj.exe	56
PID 1964 created 3448	1964	agnwj.exe	56

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

Drops startup file 1 IoCs

Processes:

Ewpeloxttug.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DriverUtil.vbs	Ewpeloxttug.exe

Executes dropped EXE 4 IoCs

Processes:

agnwj.exeagnwj.exeagnwj.exeagnwj.exe

pid	Process
3624	agnwj.exe
4760	agnwj.exe
1964	agnwj.exe
536	agnwj.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Ewpeloxttug.exeagnwj.exeagnwj.exe

description	pid	Process	procid_target
PID 780 set thread context of 4384	780	Ewpeloxttug.exe	93
PID 3624 set thread context of 4760	3624	agnwj.exe	98
PID 1964 set thread context of 536	1964	agnwj.exe	101

Drops file in Windows directory 1 IoCs

Processes:

Ewpeloxttug.exe

description	ioc	Process
File created	C:\Windows\Tasks\Test Task17.job	Ewpeloxttug.exe

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

Processes:

agnwj.exeagnwj.exeagnwj.exeagnwj.exeEwpeloxttug.exeEwpeloxttug.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	agnwj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	agnwj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	agnwj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	agnwj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ewpeloxttug.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ewpeloxttug.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Ewpeloxttug.exeagnwj.exeagnwj.exe

pid	Process
780	Ewpeloxttug.exe
3624	agnwj.exe
1964	agnwj.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Ewpeloxttug.exeagnwj.exeagnwj.exe

description	pid	Process
Token: SeDebugPrivilege	780	Ewpeloxttug.exe
Token: SeDebugPrivilege	780	Ewpeloxttug.exe
Token: SeDebugPrivilege	3624	agnwj.exe
Token: SeDebugPrivilege	3624	agnwj.exe
Token: SeDebugPrivilege	1964	agnwj.exe
Token: SeDebugPrivilege	1964	agnwj.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Ewpeloxttug.exeagnwj.exeagnwj.exe

description	pid	Process	procid_target
PID 780 wrote to memory of 4384	780	Ewpeloxttug.exe	93
PID 780 wrote to memory of 4384	780	Ewpeloxttug.exe	93
PID 780 wrote to memory of 4384	780	Ewpeloxttug.exe	93
PID 780 wrote to memory of 4384	780	Ewpeloxttug.exe	93
PID 780 wrote to memory of 4384	780	Ewpeloxttug.exe	93
PID 780 wrote to memory of 4384	780	Ewpeloxttug.exe	93
PID 780 wrote to memory of 4384	780	Ewpeloxttug.exe	93
PID 780 wrote to memory of 4384	780	Ewpeloxttug.exe	93
PID 3624 wrote to memory of 4760	3624	agnwj.exe	98
PID 3624 wrote to memory of 4760	3624	agnwj.exe	98
PID 3624 wrote to memory of 4760	3624	agnwj.exe	98
PID 3624 wrote to memory of 4760	3624	agnwj.exe	98
PID 3624 wrote to memory of 4760	3624	agnwj.exe	98
PID 3624 wrote to memory of 4760	3624	agnwj.exe	98
PID 3624 wrote to memory of 4760	3624	agnwj.exe	98
PID 3624 wrote to memory of 4760	3624	agnwj.exe	98
PID 1964 wrote to memory of 536	1964	agnwj.exe	101
PID 1964 wrote to memory of 536	1964	agnwj.exe	101
PID 1964 wrote to memory of 536	1964	agnwj.exe	101
PID 1964 wrote to memory of 536	1964	agnwj.exe	101
PID 1964 wrote to memory of 536	1964	agnwj.exe	101
PID 1964 wrote to memory of 536	1964	agnwj.exe	101
PID 1964 wrote to memory of 536	1964	agnwj.exe	101
PID 1964 wrote to memory of 536	1964	agnwj.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3448
- C:\Users\Admin\AppData\Local\Temp\Ewpeloxttug.exe
  "C:\Users\Admin\AppData\Local\Temp\Ewpeloxttug.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:780
- C:\Users\Admin\AppData\Local\Temp\Ewpeloxttug.exe
  "C:\Users\Admin\AppData\Local\Temp\Ewpeloxttug.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:4384
- C:\ProgramData\lravm\agnwj.exe
  "C:\ProgramData\lravm\agnwj.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4760
- C:\ProgramData\lravm\agnwj.exe
  "C:\ProgramData\lravm\agnwj.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:536

C:\ProgramData\lravm\agnwj.exe
C:\ProgramData\lravm\agnwj.exe
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3624

C:\ProgramData\lravm\agnwj.exe
C:\ProgramData\lravm\agnwj.exe
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964

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

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\lravm\agnwj.exe

Filesize
2.2MB

MD5
23c8cb1226c61a164d7518218c837b81

SHA1
45ea74832e487bacb788189c04661b29a71e86b5

SHA256
21aaa5319a6729df0581203a0782ead837b848387e44cd1844ca8e19882a50af

SHA512
8e219108c05966ec8ee6bc2ce2fb40c4aedce6614e65970c356e4f840e88720188c762aaa4451c2f5f1fa1bbc14136ecbcd1f4c9f3b1a5fccc0ab053a37bcc21

Download Submit
C:\Windows\Tasks\Test Task17.job

Filesize
234B

MD5
49a8340e98721c67febc37e5ebce783a

SHA1
29878b92820f13ea10b763f847b37d69e5454893

SHA256
21cc55dc54c79d6a07316d0c84de98dc7ebfcaf0a81f030e47f1afced38dcbe6

SHA512
b7b340daedc80ec7391cb7da70aecdaba620236cc1633df7164326ecf4aa651124ec281a0b17a83c9befd17540a4d7da444563b85936d0fea5856399b91b94e4

Download Submit
memory/780-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/780-1-0x00000000001C0000-0x00000000003F6000-memory.dmp

Filesize
2.2MB

Download
memory/780-2-0x0000000004DC0000-0x0000000004E9C000-memory.dmp

Filesize
880KB

Download
memory/780-32-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-24-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-18-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-64-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-62-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-66-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-60-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-58-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-56-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-54-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-52-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-50-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-48-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-46-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-44-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-42-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-40-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-38-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-36-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-34-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-30-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-28-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-27-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-22-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-20-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-16-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-14-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-12-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-10-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-8-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-6-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-5-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-3-0x0000000004DC0000-0x0000000004E97000-memory.dmp

Filesize
860KB

Download
memory/780-1077-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/780-1080-0x0000000004FD0000-0x000000000501C000-memory.dmp

Filesize
304KB

Download
memory/780-1079-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/780-1078-0x0000000004F70000-0x0000000004FC8000-memory.dmp

Filesize
352KB

Download
memory/780-1084-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/780-1085-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/780-1086-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/780-1087-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/780-1088-0x0000000005930000-0x0000000005ED4000-memory.dmp

Filesize
5.6MB

Download
memory/780-1089-0x0000000004D30000-0x0000000004D84000-memory.dmp

Filesize
336KB

Download
memory/780-1098-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/3624-1102-0x0000000073F4E000-0x0000000073F4F000-memory.dmp

Filesize
4KB

Download
memory/3624-2177-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/3624-2178-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/3624-2182-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/3624-2183-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/3624-2184-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/3624-2185-0x0000000073F4E000-0x0000000073F4F000-memory.dmp

Filesize
4KB

Download
memory/3624-2186-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/3624-2195-0x0000000073F40000-0x00000000746F0000-memory.dmp

Filesize
7.7MB

Download
memory/4384-1096-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4760-2193-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download