systembc | 3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282

Analysis

max time kernel
93s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
01-06-2024 12:16

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General

Target

e817cc929fbc651c5bdab9e8cca0d9d9.exe
Size

2.2MB
MD5

e817cc929fbc651c5bdab9e8cca0d9d9
SHA1

4d73dc2afcde6a1dcf9417c0120252a2d8fd246f
SHA256

3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282
SHA512

a9c1e547ef74c20e0a21dfc951463fb6883a23da4c323c96c5e64ac5793e774ceae898d4cf486e1bf1ea8fb69360610639a1046005fcdb9bd9f8463aec4a3e2f
SSDEEP

49152:Znv1H6cOicCqvWtLfr1/7IBSWCRBClm7gXKxfsvX7TXL:XHLhbQsV/7bRBClagXnv77

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:

e817cc929fbc651c5bdab9e8cca0d9d9.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\socks5 = "powershell.exe -windowstyle hidden -Command \"& 'C:\\Users\\Admin\\AppData\\Local\\Temp\\e817cc929fbc651c5bdab9e8cca0d9d9.exe'\""	e817cc929fbc651c5bdab9e8cca0d9d9.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

e817cc929fbc651c5bdab9e8cca0d9d9.exe

description pid process target process

PID 4448 set thread context of 3668 4448 e817cc929fbc651c5bdab9e8cca0d9d9.exe e817cc929fbc651c5bdab9e8cca0d9d9.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

e817cc929fbc651c5bdab9e8cca0d9d9.exe

description pid process

Token: SeDebugPrivilege 4448 e817cc929fbc651c5bdab9e8cca0d9d9.exe
Token: SeDebugPrivilege 4448 e817cc929fbc651c5bdab9e8cca0d9d9.exe

description	pid	process	target process
PID 4448 set thread context of 3668	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe	e817cc929fbc651c5bdab9e8cca0d9d9.exe

description	pid	process
Token: SeDebugPrivilege	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe
Token: SeDebugPrivilege	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

e817cc929fbc651c5bdab9e8cca0d9d9.exe

description	pid	process	target process
PID 4448 wrote to memory of 3668	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe	e817cc929fbc651c5bdab9e8cca0d9d9.exe
PID 4448 wrote to memory of 3668	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe	e817cc929fbc651c5bdab9e8cca0d9d9.exe
PID 4448 wrote to memory of 3668	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe	e817cc929fbc651c5bdab9e8cca0d9d9.exe
PID 4448 wrote to memory of 3668	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe	e817cc929fbc651c5bdab9e8cca0d9d9.exe
PID 4448 wrote to memory of 3668	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe	e817cc929fbc651c5bdab9e8cca0d9d9.exe
PID 4448 wrote to memory of 3668	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe	e817cc929fbc651c5bdab9e8cca0d9d9.exe
PID 4448 wrote to memory of 3668	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe	e817cc929fbc651c5bdab9e8cca0d9d9.exe
PID 4448 wrote to memory of 3668	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe	e817cc929fbc651c5bdab9e8cca0d9d9.exe
PID 4448 wrote to memory of 3668	4448	e817cc929fbc651c5bdab9e8cca0d9d9.exe	e817cc929fbc651c5bdab9e8cca0d9d9.exe

C:\Users\Admin\AppData\Local\Temp\e817cc929fbc651c5bdab9e8cca0d9d9.exe
"C:\Users\Admin\AppData\Local\Temp\e817cc929fbc651c5bdab9e8cca0d9d9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4448
- C:\Users\Admin\AppData\Local\Temp\e817cc929fbc651c5bdab9e8cca0d9d9.exe
  "C:\Users\Admin\AppData\Local\Temp\e817cc929fbc651c5bdab9e8cca0d9d9.exe"
  2⤵
  - Adds Run key to start application
  PID:3668

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/3668-4904-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/4448-36-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-4895-0x0000000006890000-0x00000000068DC000-memory.dmp

Filesize
304KB

Download
memory/4448-2-0x0000000004FA0000-0x00000000051BC000-memory.dmp

Filesize
2.1MB

Download
memory/4448-4-0x00000000062F0000-0x000000000650E000-memory.dmp

Filesize
2.1MB

Download
memory/4448-5-0x0000000006AC0000-0x0000000007064000-memory.dmp

Filesize
5.6MB

Download
memory/4448-6-0x0000000006610000-0x00000000066A2000-memory.dmp

Filesize
584KB

Download
memory/4448-14-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-20-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-58-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-52-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-60-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-70-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-68-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-66-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-64-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-62-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-56-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-54-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-50-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-48-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-44-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-42-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-1-0x0000000000260000-0x00000000004A0000-memory.dmp

Filesize
2.2MB

Download
memory/4448-3-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/4448-40-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-32-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-46-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-34-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-30-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-28-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-26-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-25-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-18-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-16-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-12-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-10-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-22-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-8-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-7-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-4893-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/4448-4894-0x0000000006830000-0x0000000006888000-memory.dmp

Filesize
352KB

Download
memory/4448-0-0x00000000750BE000-0x00000000750BF000-memory.dmp

Filesize
4KB

Download
memory/4448-4896-0x00000000750BE000-0x00000000750BF000-memory.dmp

Filesize
4KB

Download
memory/4448-4897-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/4448-4898-0x0000000006930000-0x0000000006984000-memory.dmp

Filesize
336KB

Download
memory/4448-38-0x00000000062F0000-0x0000000006508000-memory.dmp

Filesize
2.1MB

Download
memory/4448-4905-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download