systembc | d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4

Analysis

max time kernel
239s
max time network
300s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
07-06-2024 01:44

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General

Target

d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
Size

2.2MB
MD5

b60887355bbdd18f8b94fa77e01d58ab
SHA1

b634b88eca4a5d29bdd8eb6c5ac98efa51423ed3
SHA256

d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4
SHA512

e6fc0c4ea01461a762f929c828fcd985a3aed701a3546c2ab8e18331d81066082d39d3a869c050c5f0404f3f8f994b11c89a1cca8f0c63754694f302e685e715
SSDEEP

49152:jvKFuKXLEmpRoMPRUzRySYWmdEsGVEQlYa5MbiojYKDnSukXyqrb:WFukLjpR3yRVYWmKsqojfDnvk

Score

10^/10

systembc persistence trojan

Malware Config

Extracted

Family

systembc

cobusabobus.cam:4383

185.43.220.45:4383

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\Software\Microsoft\Windows\CurrentVersion\Run\socks5 = "powershell.exe -windowstyle hidden -Command \"& 'C:\\Users\\Admin\\AppData\\Local\\Temp\\d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe'\""	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

description	pid	process	target process
PID 748 set thread context of 4592	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

description	pid	process
Token: SeDebugPrivilege	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
Token: SeDebugPrivilege	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

description	pid	process	target process
PID 748 wrote to memory of 4592	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 748 wrote to memory of 4592	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 748 wrote to memory of 4592	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 748 wrote to memory of 4592	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 748 wrote to memory of 4592	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 748 wrote to memory of 4592	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 748 wrote to memory of 4592	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 748 wrote to memory of 4592	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 748 wrote to memory of 4592	748	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

C:\Users\Admin\AppData\Local\Temp\d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
"C:\Users\Admin\AppData\Local\Temp\d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:748
- C:\Users\Admin\AppData\Local\Temp\d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
  "C:\Users\Admin\AppData\Local\Temp\d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe"
  2⤵
  - Adds Run key to start application
  PID:4592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/748-0-0x00000000731DE000-0x00000000731DF000-memory.dmp

Filesize
4KB

Download
memory/748-1-0x00000000001B0000-0x00000000003EC000-memory.dmp

Filesize
2.2MB

Download
memory/748-2-0x00000000731D0000-0x00000000738BE000-memory.dmp

Filesize
6.9MB

Download
memory/748-3-0x0000000004CD0000-0x0000000004EEC000-memory.dmp

Filesize
2.1MB

Download
memory/748-4-0x0000000006090000-0x00000000062AE000-memory.dmp

Filesize
2.1MB

Download
memory/748-5-0x00000000067D0000-0x0000000006CCE000-memory.dmp

Filesize
5.0MB

Download
memory/748-6-0x00000000063D0000-0x0000000006462000-memory.dmp

Filesize
584KB

Download
memory/748-46-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-44-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-42-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-40-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-38-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-20-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-7-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-60-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-66-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-64-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-62-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-58-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-56-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-54-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-52-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-50-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-48-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-36-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-34-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-32-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-30-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-28-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-26-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-24-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-23-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-70-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-68-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-18-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-16-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-14-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-12-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-10-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-8-0x0000000006090000-0x00000000062A7000-memory.dmp

Filesize
2.1MB

Download
memory/748-4893-0x00000000731D0000-0x00000000738BE000-memory.dmp

Filesize
6.9MB

Download
memory/748-4895-0x0000000006630000-0x000000000667C000-memory.dmp

Filesize
304KB

Download
memory/748-4894-0x00000000065D0000-0x0000000006628000-memory.dmp

Filesize
352KB

Download
memory/748-4896-0x00000000731DE000-0x00000000731DF000-memory.dmp

Filesize
4KB

Download
memory/748-4897-0x00000000731D0000-0x00000000738BE000-memory.dmp

Filesize
6.9MB

Download
memory/748-4898-0x0000000006710000-0x0000000006764000-memory.dmp

Filesize
336KB

Download
memory/748-4905-0x00000000731D0000-0x00000000738BE000-memory.dmp

Filesize
6.9MB

Download
memory/4592-4904-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download