MBCProject-mbc-markdown/micro-behaviors/process/create-thread.md

ID	C0038
Objective(s)	Process
Related ATT&CK Techniques	None
Version	2.3
Created	14 August 2020
Last Modified	30 April 2024

Create Thread

Malware creates a thread.

Use in Malware

Name	Date	Method	Description
Dark Comet	2008	--	Dark Comet creates a thread. [1]
GoBotKR	2019	--	GoBotKR creates a thread. [1]
Hupigon	2013	--	Hupigon creates a thread. [1]
Locky Bart	2017	--	Locky Bart creates a thread. [1]
Rombertik	2015	--	Rombertik creates a thread. [1]
Shamoon	2012	--	Shamoon creates a thread. [1]

Detection

Tool: capa	Mapping	APIs
create thread	Create Thread (C0038)	kernel32.CreateThread, _beginthread, _beginthreadex, PsCreateSystemThread, SHCreateThread, SHCreateThreadWithHandle, kernel32.CreateRemoteThread, kernel32.CreateRemoteThreadEx, RtlCreateUserThread, ntdll.NtCreateThread, ntdll.NtCreateThreadEx, ntdll.ZwCreateThread, ntdll.ZwCreateThreadEx, pthread_create, System.Threading.Thread::Start, System.Threading.Thread::ctor
spawn thread to RWX shellcode	Create Thread (C0038)	--

Tool: CAPE	Mapping	APIs
injection_create_remote_thread	Create Thread (C0038)	--
antidebug_ntcreatethreadex	Create Thread (C0038)	NtCreateThreadEx
antidebug_ntsetinformationthread	Create Thread (C0038)	NtSetInformationThread

C0038 Snippet

Process::Create Thread

SHA256: 465d3aac3ca4daa9ad4de04fcb999f358396efd7abceed9701c9c28c23c126db Location: 0x404915

mov     param_2, dword ptr [ebp + param_4]
push    param_2 ; Pointer to location where thread handler will be returned
mov     param_2, dword ptr [ebp + param_5]
push    param_2 ; Flags controlling thread creation
push    param_1 ; Pointer to variable to be passed to thread
mov     param_1, FUN_004048b8
push    param_1 ; Pointer to function where thread will begin execution
push    esi     ; Size of stack for new thread
push    ebx     ; Pointer to security attributes for thread.  If null, the handle to the thread cannot be inherited
call    KERNEL32.DLL::CreateThread ; Call to thread creation API

References

[1] capa v4.0, analyzed at MITRE on 10/12/2022