systembc | 92f5e87abf9c56629ea18d38fd358c554842492ed2dd927f5da116312bb341e0

Analysis

max time kernel
148s
max time network
149s
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 12:49

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General

Target

BlueMail.exe
Size

1006KB
MD5

0630c2c8a8c85dca0b36513ad79967e8
SHA1

9dafbb4ef4c4ecbd78aa9f4c8f0260a8aba2baf4
SHA256

341082f1ded57c304632b7607119183bb78ba76e1b492f3e4a706fd83c1bc13d
SHA512

2e200220d5b8ab644274af62de19b36c502ca8c6e9a450e2ac61c8f5cce20a45d73200d4d8f45b1b45a4b3a645c103a61110d5f4273783f06ccabe6f1c407350
SSDEEP

24576:W0RHvPoU6t/Wn5z09zDxeXTMT9m2OyzUYc:lHvB+QmzoIZ3Bw

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 4016 created 3492	4016	BlueMail.exe	56
PID 3092 created 3492	3092	icxu.exe	56
PID 2380 created 3492	2380	icxu.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\vminfol.vbs	BlueMail.exe

Executes dropped EXE 4 IoCs

pid	Process
3092	icxu.exe
4072	icxu.exe
2380	icxu.exe
3524	icxu.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4016 set thread context of 1140	4016	BlueMail.exe	89
PID 3092 set thread context of 4072	3092	icxu.exe	93
PID 2380 set thread context of 3524	2380	icxu.exe	95

Drops file in Windows directory 1 IoCs

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

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4016	BlueMail.exe
3092	icxu.exe
2380	icxu.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4016	BlueMail.exe
Token: SeDebugPrivilege	4016	BlueMail.exe
Token: SeDebugPrivilege	3092	icxu.exe
Token: SeDebugPrivilege	3092	icxu.exe
Token: SeDebugPrivilege	2380	icxu.exe
Token: SeDebugPrivilege	2380	icxu.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 1140	4016	BlueMail.exe	89
PID 4016 wrote to memory of 1140	4016	BlueMail.exe	89
PID 4016 wrote to memory of 1140	4016	BlueMail.exe	89
PID 4016 wrote to memory of 1140	4016	BlueMail.exe	89
PID 4016 wrote to memory of 1140	4016	BlueMail.exe	89
PID 4016 wrote to memory of 1140	4016	BlueMail.exe	89
PID 4016 wrote to memory of 1140	4016	BlueMail.exe	89
PID 4016 wrote to memory of 1140	4016	BlueMail.exe	89
PID 3092 wrote to memory of 4072	3092	icxu.exe	93
PID 3092 wrote to memory of 4072	3092	icxu.exe	93
PID 3092 wrote to memory of 4072	3092	icxu.exe	93
PID 3092 wrote to memory of 4072	3092	icxu.exe	93
PID 3092 wrote to memory of 4072	3092	icxu.exe	93
PID 3092 wrote to memory of 4072	3092	icxu.exe	93
PID 3092 wrote to memory of 4072	3092	icxu.exe	93
PID 3092 wrote to memory of 4072	3092	icxu.exe	93
PID 2380 wrote to memory of 3524	2380	icxu.exe	95
PID 2380 wrote to memory of 3524	2380	icxu.exe	95
PID 2380 wrote to memory of 3524	2380	icxu.exe	95
PID 2380 wrote to memory of 3524	2380	icxu.exe	95
PID 2380 wrote to memory of 3524	2380	icxu.exe	95
PID 2380 wrote to memory of 3524	2380	icxu.exe	95
PID 2380 wrote to memory of 3524	2380	icxu.exe	95
PID 2380 wrote to memory of 3524	2380	icxu.exe	95

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3492
- C:\Users\Admin\AppData\Local\Temp\BlueMail.exe
  "C:\Users\Admin\AppData\Local\Temp\BlueMail.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:4016
- C:\Users\Admin\AppData\Local\Temp\BlueMail.exe
  "C:\Users\Admin\AppData\Local\Temp\BlueMail.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:1140
- C:\ProgramData\vmexsfp\icxu.exe
  "C:\ProgramData\vmexsfp\icxu.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4072
- C:\ProgramData\vmexsfp\icxu.exe
  "C:\ProgramData\vmexsfp\icxu.exe"
  2⤵
  - Executes dropped EXE
  PID:3524

C:\ProgramData\vmexsfp\icxu.exe
C:\ProgramData\vmexsfp\icxu.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:3092

C:\ProgramData\vmexsfp\icxu.exe
C:\ProgramData\vmexsfp\icxu.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:2380

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\vmexsfp\icxu.exe

Filesize
1006KB

MD5
0630c2c8a8c85dca0b36513ad79967e8

SHA1
9dafbb4ef4c4ecbd78aa9f4c8f0260a8aba2baf4

SHA256
341082f1ded57c304632b7607119183bb78ba76e1b492f3e4a706fd83c1bc13d

SHA512
2e200220d5b8ab644274af62de19b36c502ca8c6e9a450e2ac61c8f5cce20a45d73200d4d8f45b1b45a4b3a645c103a61110d5f4273783f06ccabe6f1c407350

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

Filesize
236B

MD5
34b0b5b37aafdafc15d1196b47b189a3

SHA1
5af071384af8204256da68b21c3ecd3a029137c4

SHA256
63f8172744123672d95efcadc30fb750a83f2d1e35d3df3d1f4c6bd53ab83713

SHA512
ca5f85997975c3da0ab8c6a5aa1f7405c2b2321d368267e3b055dc593a6a63a4cb244bf9450bf7ebe63997e60b21f761406d154fca0972d3eb551243ad619f81

Download Submit
memory/1140-1201-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3092-2403-0x0000000074240000-0x00000000749F0000-memory.dmp

Filesize
7.7MB

Download
memory/3092-2398-0x0000000074240000-0x00000000749F0000-memory.dmp

Filesize
7.7MB

Download
memory/3092-2396-0x0000000074240000-0x00000000749F0000-memory.dmp

Filesize
7.7MB

Download
memory/3092-2390-0x0000000074240000-0x00000000749F0000-memory.dmp

Filesize
7.7MB

Download
memory/3092-2389-0x0000000074240000-0x00000000749F0000-memory.dmp

Filesize
7.7MB

Download
memory/3092-2388-0x000000007424E000-0x000000007424F000-memory.dmp

Filesize
4KB

Download
memory/3092-2387-0x0000000074240000-0x00000000749F0000-memory.dmp

Filesize
7.7MB

Download
memory/3092-1209-0x000000007424E000-0x000000007424F000-memory.dmp

Filesize
4KB

Download
memory/3092-1210-0x0000000074240000-0x00000000749F0000-memory.dmp

Filesize
7.7MB

Download
memory/4016-6-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-5-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-52-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-50-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-48-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-47-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-44-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-42-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-38-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-36-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-32-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-26-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-24-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-22-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-20-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-18-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-16-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-14-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-12-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-9-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-0-0x000000007508E000-0x000000007508F000-memory.dmp

Filesize
4KB

Download
memory/4016-54-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-40-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-28-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-10-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-56-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-1181-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/4016-1182-0x0000000005790000-0x00000000057E8000-memory.dmp

Filesize
352KB

Download
memory/4016-1183-0x0000000005850000-0x000000000589C000-memory.dmp

Filesize
304KB

Download
memory/4016-1184-0x000000007508E000-0x000000007508F000-memory.dmp

Filesize
4KB

Download
memory/4016-1185-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/4016-1186-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/4016-1187-0x00000000061F0000-0x0000000006794000-memory.dmp

Filesize
5.6MB

Download
memory/4016-1188-0x0000000005930000-0x0000000005984000-memory.dmp

Filesize
336KB

Download
memory/4016-1195-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/4016-1203-0x0000000003001000-0x0000000003002000-memory.dmp

Filesize
4KB

Download
memory/4016-1202-0x0000000002FC3000-0x0000000002FC4000-memory.dmp

Filesize
4KB

Download
memory/4016-58-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-1200-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/4016-1204-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/4016-62-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-64-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-66-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-68-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-60-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-34-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-30-0x0000000005500000-0x00000000055E1000-memory.dmp

Filesize
900KB

Download
memory/4016-4-0x0000000005500000-0x00000000055E8000-memory.dmp

Filesize
928KB

Download
memory/4016-3-0x0000000005370000-0x0000000005456000-memory.dmp

Filesize
920KB

Download
memory/4016-2-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/4016-1-0x0000000000950000-0x0000000000A4A000-memory.dmp

Filesize
1000KB

Download
memory/4072-2404-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download