systembc | d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4

Analysis

max time kernel
232s
max time network
238s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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-1-5-21-330940541-141609230-1670313778-1000\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 2292 set thread context of 1912	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

description	pid	process
Token: SeDebugPrivilege	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
Token: SeDebugPrivilege	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe

description	pid	process	target process
PID 2292 wrote to memory of 1912	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 2292 wrote to memory of 1912	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 2292 wrote to memory of 1912	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 2292 wrote to memory of 1912	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 2292 wrote to memory of 1912	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 2292 wrote to memory of 1912	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 2292 wrote to memory of 1912	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 2292 wrote to memory of 1912	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 2292 wrote to memory of 1912	2292	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe	d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
PID 2292 wrote to memory of 1912	2292	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:2292
- C:\Users\Admin\AppData\Local\Temp\d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe
  "C:\Users\Admin\AppData\Local\Temp\d1a0998e382046ff7f4c05dcbb784517e7ef7dd741760e25d11388d93f1e82b4.exe"
  2⤵
  - Adds Run key to start application
  PID:1912

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/1912-4913-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/2292-66-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-1-0x0000000000A20000-0x0000000000C5C000-memory.dmp

Filesize
2.2MB

Download
memory/2292-3-0x0000000004F10000-0x000000000512C000-memory.dmp

Filesize
2.1MB

Download
memory/2292-4892-0x00000000024C0000-0x000000000250C000-memory.dmp

Filesize
304KB

Download
memory/2292-5-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-6-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-8-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-68-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-10-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-12-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-14-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-16-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-18-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-20-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-22-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-24-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-26-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-64-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-30-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-32-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-34-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/2292-4-0x0000000006360000-0x000000000657E000-memory.dmp

Filesize
2.1MB

Download
memory/2292-2-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2292-28-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-62-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-60-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-58-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-56-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-54-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-52-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-50-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-48-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-46-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-44-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-42-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-40-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-38-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-36-0x0000000006360000-0x0000000006577000-memory.dmp

Filesize
2.1MB

Download
memory/2292-4893-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2292-4894-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/2292-4895-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2292-4896-0x00000000025E0000-0x0000000002634000-memory.dmp

Filesize
336KB

Download
memory/2292-4891-0x00000000009C0000-0x0000000000A18000-memory.dmp

Filesize
352KB

Download
memory/2292-4914-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download