sectoprat | 87e3af2826512db33e2877ec799f576a13a6853a9839532278f02d4e548e7424

Analysis

max time kernel
289s
max time network
293s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-08-2024 11:15

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General

Target

run.bat
Size

34B
MD5

87d72f7fe17d44947ad61d3b37c72ba4
SHA1

ce2aa9009aafbb41eaebf96a616fefa81a3f7950
SHA256

90d062ca877bb672557a58271bbdec6e9fe4517e106437b8dbafb6367fd1e86e
SHA512

374cdca46bdb508c8eadf8a26ed22d9e08b4c0e2ad6d9a164922a09ee8eb9fa88a98cf11a13f65e41ff2c019db55cf3e3be4b3b3d27d544c61fe773660c0fbc0

Score

10^/10

sectoprat discovery execution persistence rat trojan

Malware Config

Signatures

SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
trojan rat sectoprat

SectopRAT payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4940-6-0x0000000000400000-0x00000000004C6000-memory.dmp	family_sectoprat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

AutoIt3.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\bakgbcb = "\"C:\\aehcfbk\\AutoIt3.exe\" C:\\aehcfbk\\bakgbcb.a3x"	AutoIt3.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

21 pastebin.com
22 pastebin.com
Command and Scripting Interpreter: AutoIT 1 TTPs 1 IoCs
Using AutoIT for possible automate script.
execution

T1059.010

Processes:

AutoIt3.exe

pid process

2736 AutoIt3.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

AutoIt3.exe

description pid process target process

PID 2736 set thread context of 4940 2736 AutoIt3.exe RegAsm.exe

flow	ioc
21	pastebin.com
22	pastebin.com

pid	process
2736	AutoIt3.exe

description	pid	process	target process
PID 2736 set thread context of 4940	2736	AutoIt3.exe	RegAsm.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

AutoIt3.exeRegAsm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AutoIt3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

AutoIt3.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AutoIt3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AutoIt3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 4940 RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	4940	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

cmd.exeAutoIt3.exe

description	pid	process	target process
PID 2116 wrote to memory of 2736	2116	cmd.exe	AutoIt3.exe
PID 2116 wrote to memory of 2736	2116	cmd.exe	AutoIt3.exe
PID 2116 wrote to memory of 2736	2116	cmd.exe	AutoIt3.exe
PID 2736 wrote to memory of 4940	2736	AutoIt3.exe	RegAsm.exe
PID 2736 wrote to memory of 4940	2736	AutoIt3.exe	RegAsm.exe
PID 2736 wrote to memory of 4940	2736	AutoIt3.exe	RegAsm.exe
PID 2736 wrote to memory of 4940	2736	AutoIt3.exe	RegAsm.exe
PID 2736 wrote to memory of 4940	2736	AutoIt3.exe	RegAsm.exe

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\run.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2116

C:\Users\Admin\AppData\Local\Temp\AutoIt3.exe
AutoIt3.exe script.a3x
2⤵
- Adds Run key to start application
- Command and Scripting Interpreter: AutoIT
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2736

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4940

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2736-2-0x00000000016A0000-0x0000000001AA0000-memory.dmp

Filesize
4.0MB

Download
memory/4940-4-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/4940-5-0x0000000073C7E000-0x0000000073C7F000-memory.dmp

Filesize
4KB

Download
memory/4940-6-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/4940-7-0x0000000005810000-0x00000000058A2000-memory.dmp

Filesize
584KB

Download
memory/4940-8-0x0000000005E60000-0x0000000006404000-memory.dmp

Filesize
5.6MB

Download
memory/4940-9-0x0000000005AF0000-0x0000000005CB2000-memory.dmp

Filesize
1.8MB

Download
memory/4940-10-0x00000000059A0000-0x0000000005A16000-memory.dmp

Filesize
472KB

Download
memory/4940-11-0x0000000005A20000-0x0000000005A70000-memory.dmp

Filesize
320KB

Download
memory/4940-12-0x0000000073C70000-0x0000000074420000-memory.dmp

Filesize
7.7MB

Download
memory/4940-13-0x0000000073C7E000-0x0000000073C7F000-memory.dmp

Filesize
4KB

Download
memory/4940-14-0x0000000073C70000-0x0000000074420000-memory.dmp

Filesize
7.7MB

Download