systembc | 6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a

Analysis

max time kernel
114s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16/12/2024, 13:43

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General

Target

6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe
Size

1005KB
MD5

ea10363200a7a140a53a8f85e64fe25d
SHA1

a935f4a0ccde0b0297819da87bf56fa4accd37d3
SHA256

6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a
SHA512

94f2dc86a89227096598e6f1f5f72d9129b58858da4cd1ae4e48e6ebe8604215641b82e0b7fa70e2363092f2cde85ce7bd6cc830e4508c857610fac7cafe160a
SSDEEP

24576:84t9IZNP9LIwKB6wuLjMixA298HC4YrX+yc3d:nmqwKEHD+fi4Y+ye

Score

10^/10

systembc discovery trojan

Malware Config

Extracted

Family

systembc

wodresomdaymomentum.org

Attributes

dns
5.132.191.104

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 3 IoCs

description	pid	Process	procid_target
PID 3492 created 3388	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe	56
PID 1636 created 3388	1636	thul.exe	56
PID 440 created 3388	440	thul.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

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dnswin.vbs	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe

Executes dropped EXE 4 IoCs

pid	Process
1636	thul.exe
4328	thul.exe
440	thul.exe
4268	thul.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3492 set thread context of 3304	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe	92
PID 1636 set thread context of 4328	1636	thul.exe	101
PID 440 set thread context of 4268	440	thul.exe	103

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\Test Task17.job	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.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	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	thul.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	thul.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	thul.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe
1636	thul.exe
440	thul.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe
Token: SeDebugPrivilege	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe
Token: SeDebugPrivilege	1636	thul.exe
Token: SeDebugPrivilege	1636	thul.exe
Token: SeDebugPrivilege	440	thul.exe
Token: SeDebugPrivilege	440	thul.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3492 wrote to memory of 3304	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe	92
PID 3492 wrote to memory of 3304	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe	92
PID 3492 wrote to memory of 3304	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe	92
PID 3492 wrote to memory of 3304	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe	92
PID 3492 wrote to memory of 3304	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe	92
PID 3492 wrote to memory of 3304	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe	92
PID 3492 wrote to memory of 3304	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe	92
PID 3492 wrote to memory of 3304	3492	6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe	92
PID 1636 wrote to memory of 4328	1636	thul.exe	101
PID 1636 wrote to memory of 4328	1636	thul.exe	101
PID 1636 wrote to memory of 4328	1636	thul.exe	101
PID 1636 wrote to memory of 4328	1636	thul.exe	101
PID 1636 wrote to memory of 4328	1636	thul.exe	101
PID 1636 wrote to memory of 4328	1636	thul.exe	101
PID 1636 wrote to memory of 4328	1636	thul.exe	101
PID 1636 wrote to memory of 4328	1636	thul.exe	101
PID 440 wrote to memory of 4268	440	thul.exe	103
PID 440 wrote to memory of 4268	440	thul.exe	103
PID 440 wrote to memory of 4268	440	thul.exe	103
PID 440 wrote to memory of 4268	440	thul.exe	103
PID 440 wrote to memory of 4268	440	thul.exe	103
PID 440 wrote to memory of 4268	440	thul.exe	103
PID 440 wrote to memory of 4268	440	thul.exe	103
PID 440 wrote to memory of 4268	440	thul.exe	103

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3388
- C:\Users\Admin\AppData\Local\Temp\6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe
  "C:\Users\Admin\AppData\Local\Temp\6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.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:3492
- C:\Users\Admin\AppData\Local\Temp\6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe
  "C:\Users\Admin\AppData\Local\Temp\6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:3304
- C:\ProgramData\vkkea\thul.exe
  "C:\ProgramData\vkkea\thul.exe"
  2⤵
  - Executes dropped EXE
  PID:4328
- C:\ProgramData\vkkea\thul.exe
  "C:\ProgramData\vkkea\thul.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4268

C:\ProgramData\vkkea\thul.exe
C:\ProgramData\vkkea\thul.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:1636

C:\ProgramData\vkkea\thul.exe
C:\ProgramData\vkkea\thul.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:440

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\vkkea\thul.exe

Filesize
1005KB

MD5
ea10363200a7a140a53a8f85e64fe25d

SHA1
a935f4a0ccde0b0297819da87bf56fa4accd37d3

SHA256
6452af32887b676352a3c81057bd89385292f7660f01be8f1c102380cc415c5a

SHA512
94f2dc86a89227096598e6f1f5f72d9129b58858da4cd1ae4e48e6ebe8604215641b82e0b7fa70e2363092f2cde85ce7bd6cc830e4508c857610fac7cafe160a

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

Filesize
232B

MD5
2baa903340eb29fc8fb34792ccd48ae4

SHA1
dead97ae80576619567b0c1e67c72821bc931186

SHA256
939f26fd4cbd4dace9cff45dfbc1851c967a73b4dd8c2de980f65b55ace28406

SHA512
e5017aee1b38f89acca95f37f7dbb2f4a4fbf9e9cd740b3a177621f149affc9ed6da3d7daab8ad08e0108c0b9d754eb200985897849172eb2450f7a35a490931

Download Submit
memory/1636-1209-0x000000007450E000-0x000000007450F000-memory.dmp

Filesize
4KB

Download
memory/1636-1210-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/1636-2387-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/1636-2400-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/1636-2401-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/1636-2390-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/1636-2389-0x0000000074500000-0x0000000074CB0000-memory.dmp

Filesize
7.7MB

Download
memory/1636-2388-0x000000007450E000-0x000000007450F000-memory.dmp

Filesize
4KB

Download
memory/3304-1201-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3492-30-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-12-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-68-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-66-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-62-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-60-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-58-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-56-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-54-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-52-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-48-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-46-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-44-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-42-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-40-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-38-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-36-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-34-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-32-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-22-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-28-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-26-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-20-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-18-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-14-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-64-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-10-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-8-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-6-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-50-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-24-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-5-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-1181-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3492-1182-0x0000000005840000-0x0000000005898000-memory.dmp

Filesize
352KB

Download
memory/3492-1183-0x00000000058F0000-0x000000000593C000-memory.dmp

Filesize
304KB

Download
memory/3492-1184-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

Filesize
4KB

Download
memory/3492-1185-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3492-1186-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3492-1187-0x0000000006280000-0x0000000006824000-memory.dmp

Filesize
5.6MB

Download
memory/3492-1188-0x00000000059D0000-0x0000000005A24000-memory.dmp

Filesize
336KB

Download
memory/3492-1194-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3492-16-0x0000000005570000-0x0000000005651000-memory.dmp

Filesize
900KB

Download
memory/3492-4-0x0000000005570000-0x0000000005656000-memory.dmp

Filesize
920KB

Download
memory/3492-3-0x0000000005400000-0x00000000054E6000-memory.dmp

Filesize
920KB

Download
memory/3492-2-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3492-1-0x0000000000A00000-0x0000000000AFA000-memory.dmp

Filesize
1000KB

Download
memory/3492-0-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

Filesize
4KB

Download
memory/3492-1203-0x00000000030E1000-0x00000000030E2000-memory.dmp

Filesize
4KB

Download
memory/3492-1202-0x00000000032E5000-0x00000000032E6000-memory.dmp

Filesize
4KB

Download
memory/3492-1204-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3492-1200-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download