Malware Analysis Report

2024-12-07 22:36

Sample ID 240720-nyscnasdrc
Target c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
SHA256 c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160
Tags
remcos henchnewfile rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160

Threat Level: Known bad

The file c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe was found to be: Known bad.

Malicious Activity Summary

remcos henchnewfile rat

Remcos

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-20 11:48

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-20 11:48

Reported

2024-07-20 11:51

Platform

win7-20240704-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe"

Signatures

Remcos

rat remcos

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2432 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe

"C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe"

C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe

"C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe"

Network

Country Destination Domain Proto
PL 91.223.3.151:4508 tcp
PL 91.223.3.151:4508 tcp
PL 91.223.3.151:4508 tcp
PL 91.223.3.151:4508 tcp
PL 91.223.3.151:4508 tcp
PL 91.223.3.151:4508 tcp
PL 91.223.3.151:4508 tcp

Files

memory/2432-0-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

memory/2432-1-0x00000000011F0000-0x00000000012FA000-memory.dmp

memory/2432-2-0x0000000073ED0000-0x00000000745BE000-memory.dmp

memory/2432-3-0x0000000000750000-0x000000000076A000-memory.dmp

memory/2432-4-0x0000000000960000-0x000000000096E000-memory.dmp

memory/2432-5-0x0000000073ED0000-0x00000000745BE000-memory.dmp

memory/2432-6-0x0000000005EF0000-0x0000000005FB0000-memory.dmp

memory/2940-8-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-17-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-23-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-21-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2432-20-0x0000000073ED0000-0x00000000745BE000-memory.dmp

memory/2940-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2940-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-11-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-9-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-7-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-12-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-10-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-24-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-25-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-26-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-27-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-28-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-29-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-30-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-31-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-32-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-34-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2940-35-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-20 11:48

Reported

2024-07-20 11:51

Platform

win10v2004-20240709-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe"

Signatures

Remcos

rat remcos

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2916 wrote to memory of 1800 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 1800 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 1800 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe
PID 2916 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe

"C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe"

C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe

"C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe"

C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe

"C:\Users\Admin\AppData\Local\Temp\c05d634d51542921796702112f1b7c8aabbaa9845eb4f26d3dffcb3bb2dfb160.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
PL 91.223.3.151:4508 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
PL 91.223.3.151:4508 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
PL 91.223.3.151:4508 tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
PL 91.223.3.151:4508 tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
PL 91.223.3.151:4508 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
PL 91.223.3.151:4508 tcp
PL 91.223.3.151:4508 tcp

Files

memory/2916-0-0x0000000074E7E000-0x0000000074E7F000-memory.dmp

memory/2916-1-0x0000000000750000-0x000000000085A000-memory.dmp

memory/2916-2-0x00000000058A0000-0x0000000005E44000-memory.dmp

memory/2916-3-0x00000000052F0000-0x0000000005382000-memory.dmp

memory/2916-4-0x0000000005390000-0x00000000056E4000-memory.dmp

memory/2916-5-0x0000000074E70000-0x0000000075620000-memory.dmp

memory/2916-6-0x0000000005760000-0x000000000576A000-memory.dmp

memory/2916-7-0x00000000084C0000-0x00000000084DA000-memory.dmp

memory/2916-8-0x0000000006840000-0x000000000684E000-memory.dmp

memory/2916-9-0x00000000069F0000-0x0000000006AB0000-memory.dmp

memory/2916-10-0x000000000AA70000-0x000000000AB0C000-memory.dmp

memory/2388-11-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-12-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-15-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2916-17-0x0000000074E70000-0x0000000075620000-memory.dmp

memory/2388-18-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-20-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-21-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-22-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-23-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-24-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-25-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-26-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-27-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-28-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2388-29-0x0000000000400000-0x0000000000482000-memory.dmp