systembc | 007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219

Analysis

max time kernel
98s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 22:31

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General

Target

007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe
Size

1.1MB
MD5

6763ecebb557237980b32c8a5872bae0
SHA1

69d6500dabfe1d27fcf2586dff0cb8d51057c1fd
SHA256

007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219
SHA512

09e063dde5da8e4032e0c691921f667d00d7d47766b5cf62b5d4f17cb83bc5c989c32eae9ed075a5d182ed3ecd9e89cd805722f7cf629ae2d5dc91542effa867
SSDEEP

24576:TA6JVOI4Ltgdc2fNjIu0W8lJDebGjNOvEER9Fsr/zwRC:T3OI4xKcaj4Wee2sjY

Score

10^/10

systembc discovery trojan

Malware Config

Extracted

Family

systembc

wodresomdaymomentum.org

Attributes

dns
5.132.191.104

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs

description	pid	Process	procid_target
PID 2304 created 3340	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe	55
PID 5088 created 3340	5088	xsomnrh.exe	55

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\winutil.vbs	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe

Executes dropped EXE 2 IoCs

pid	Process
5088	xsomnrh.exe
2332	xsomnrh.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2304 set thread context of 4400	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe	92
PID 5088 set thread context of 2332	5088	xsomnrh.exe	103

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\Test Task17.job	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xsomnrh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xsomnrh.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe
5088	xsomnrh.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe
Token: SeDebugPrivilege	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe
Token: SeDebugPrivilege	5088	xsomnrh.exe
Token: SeDebugPrivilege	5088	xsomnrh.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 4400	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe	92
PID 2304 wrote to memory of 4400	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe	92
PID 2304 wrote to memory of 4400	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe	92
PID 2304 wrote to memory of 4400	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe	92
PID 2304 wrote to memory of 4400	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe	92
PID 2304 wrote to memory of 4400	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe	92
PID 2304 wrote to memory of 4400	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe	92
PID 2304 wrote to memory of 4400	2304	007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe	92
PID 5088 wrote to memory of 2332	5088	xsomnrh.exe	103
PID 5088 wrote to memory of 2332	5088	xsomnrh.exe	103
PID 5088 wrote to memory of 2332	5088	xsomnrh.exe	103
PID 5088 wrote to memory of 2332	5088	xsomnrh.exe	103
PID 5088 wrote to memory of 2332	5088	xsomnrh.exe	103
PID 5088 wrote to memory of 2332	5088	xsomnrh.exe	103
PID 5088 wrote to memory of 2332	5088	xsomnrh.exe	103
PID 5088 wrote to memory of 2332	5088	xsomnrh.exe	103

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3340
- C:\Users\Admin\AppData\Local\Temp\007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe
  "C:\Users\Admin\AppData\Local\Temp\007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.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:2304
- C:\Users\Admin\AppData\Local\Temp\007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe
  "C:\Users\Admin\AppData\Local\Temp\007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219N.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:4400
- C:\ProgramData\gkteb\xsomnrh.exe
  "C:\ProgramData\gkteb\xsomnrh.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2332

C:\ProgramData\gkteb\xsomnrh.exe
C:\ProgramData\gkteb\xsomnrh.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:5088

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

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Downloads

C:\ProgramData\gkteb\xsomnrh.exe

Filesize
1.1MB

MD5
6763ecebb557237980b32c8a5872bae0

SHA1
69d6500dabfe1d27fcf2586dff0cb8d51057c1fd

SHA256
007585f948d9b37143906f1ded66250c7234fbfd65ff9d91b251632340389219

SHA512
09e063dde5da8e4032e0c691921f667d00d7d47766b5cf62b5d4f17cb83bc5c989c32eae9ed075a5d182ed3ecd9e89cd805722f7cf629ae2d5dc91542effa867

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

Filesize
238B

MD5
7c91835ee425eec8e6a90fd55803fcfd

SHA1
7a37d1e2d4988d0351f68ea076a0b69eaab10faa

SHA256
cefd3c3859a9ff51456e015ac7cd85a0cc41571551be7cab9f235f3d38bf017f

SHA512
90db526b357bb85a084b3d2f29d35ad8cf4483101cbf4ca474dd835e3ec1a5e0a040e07b9f40e07b6bfd43ec676ec10bc169ad3fb3fd5d91385b2789218a0b2d

Download Submit
memory/2304-0-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/2304-1-0x0000000000AC0000-0x0000000000BDA000-memory.dmp

Filesize
1.1MB

Download
memory/2304-2-0x00000000055D0000-0x00000000056B6000-memory.dmp

Filesize
920KB

Download
memory/2304-3-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2304-4-0x00000000056C0000-0x00000000057A6000-memory.dmp

Filesize
920KB

Download
memory/2304-58-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-68-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-66-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-64-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-62-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-60-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-57-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-54-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-50-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-48-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-46-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-40-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-34-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-32-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-29-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-26-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-23-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-21-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-18-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-16-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-15-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-12-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-10-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-52-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-44-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-42-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-38-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-36-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-30-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-24-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-8-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-6-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-5-0x00000000056C0000-0x00000000057A1000-memory.dmp

Filesize
900KB

Download
memory/2304-1181-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2304-1182-0x00000000057F0000-0x0000000005848000-memory.dmp

Filesize
352KB

Download
memory/2304-1183-0x0000000005850000-0x000000000589C000-memory.dmp

Filesize
304KB

Download
memory/2304-1184-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/2304-1185-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2304-1186-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2304-1187-0x0000000006250000-0x00000000067F4000-memory.dmp

Filesize
5.6MB

Download
memory/2304-1188-0x0000000005AF0000-0x0000000005B44000-memory.dmp

Filesize
336KB

Download
memory/2304-1195-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2304-1200-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2304-1203-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/2332-2403-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/4400-1204-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/5088-1207-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5088-2384-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5088-2385-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/5088-2386-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5088-2387-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5088-2394-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5088-2402-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download
memory/5088-2400-0x0000000074DB0000-0x0000000075560000-memory.dmp

Filesize
7.7MB

Download