systembc | a4609b413d497de8eea92104d7e871490e2978bea1b91eb878e41e54b253eaa0

Analysis

max time kernel
125s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
04-06-2024 03:41

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General

Target

3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.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:

3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\socks5 = "powershell.exe -windowstyle hidden -Command \"& 'C:\\Users\\Admin\\AppData\\Local\\Temp\\3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe'\""	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe

description	pid	process	target process
PID 4224 set thread context of 1924	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe

description	pid	process
Token: SeDebugPrivilege	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe
Token: SeDebugPrivilege	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe

description	pid	process	target process
PID 4224 wrote to memory of 1924	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe
PID 4224 wrote to memory of 1924	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe
PID 4224 wrote to memory of 1924	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe
PID 4224 wrote to memory of 1924	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe
PID 4224 wrote to memory of 1924	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe
PID 4224 wrote to memory of 1924	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe
PID 4224 wrote to memory of 1924	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe
PID 4224 wrote to memory of 1924	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe
PID 4224 wrote to memory of 1924	4224	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe	3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe

C:\Users\Admin\AppData\Local\Temp\3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe
"C:\Users\Admin\AppData\Local\Temp\3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4224
- C:\Users\Admin\AppData\Local\Temp\3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe
  "C:\Users\Admin\AppData\Local\Temp\3a7327bd54ba0dfa36bbf0b9d0dc820984d6d0e0316cfa4045ab4c1e7e447282.exe"
  2⤵
  - Adds Run key to start application
  PID:1924

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3240,i,17096020621006928097,15544233752327415349,262144 --variations-seed-version --mojo-platform-channel-handle=4588 /prefetch:8
1⤵
PID:2632

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/1924-4905-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/4224-22-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-4896-0x000000007493E000-0x000000007493F000-memory.dmp

Filesize
4KB

Download
memory/4224-3-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/4224-4-0x0000000006D70000-0x0000000006F8E000-memory.dmp

Filesize
2.1MB

Download
memory/4224-5-0x0000000007570000-0x0000000007B14000-memory.dmp

Filesize
5.6MB

Download
memory/4224-6-0x0000000007060000-0x00000000070F2000-memory.dmp

Filesize
584KB

Download
memory/4224-7-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-8-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-18-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-38-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-50-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-48-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-47-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-44-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-24-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-40-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-36-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-34-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-32-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-30-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-28-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-26-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-42-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-2-0x0000000005A20000-0x0000000005C3C000-memory.dmp

Filesize
2.1MB

Download
memory/4224-64-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-16-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-14-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-10-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-12-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-68-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-70-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-66-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-20-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-62-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-60-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-58-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-56-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-54-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-52-0x0000000006D70000-0x0000000006F88000-memory.dmp

Filesize
2.1MB

Download
memory/4224-4893-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/4224-4894-0x0000000007170000-0x00000000071C8000-memory.dmp

Filesize
352KB

Download
memory/4224-4895-0x0000000007310000-0x000000000735C000-memory.dmp

Filesize
304KB

Download
memory/4224-0-0x000000007493E000-0x000000007493F000-memory.dmp

Filesize
4KB

Download
memory/4224-4897-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/4224-4898-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/4224-4899-0x00000000071F0000-0x0000000007244000-memory.dmp

Filesize
336KB

Download
memory/4224-1-0x0000000000D20000-0x0000000000F60000-memory.dmp

Filesize
2.2MB

Download
memory/4224-4906-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download