Malware Analysis Report

2025-01-02 03:28

Sample ID 240723-kqcepaxdjf
Target 2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber
SHA256 304c9441dda8c71ef1f999ce24316919a5a74f9352ce6f54ac473c6f1e48107c
Tags
remcos 1&==de julio==2024 persistence rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

304c9441dda8c71ef1f999ce24316919a5a74f9352ce6f54ac473c6f1e48107c

Threat Level: Known bad

The file 2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber was found to be: Known bad.

Malicious Activity Summary

remcos 1&==de julio==2024 persistence rat

Remcos

Adds Run key to start application

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-23 08:47

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-23 08:47

Reported

2024-07-23 08:50

Platform

win7-20240704-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe"

Signatures

Remcos

rat remcos

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\Nuuuio = "C:\\Users\\Admin\\Pictures\\NONOUTUNMMap\\FirefoxUp.exe" C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe"

C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 oijdwe820b397gdb3n298rd2.con-ip.com udp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp

Files

memory/2400-0-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2400-2-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2400-1-0x0000000000412000-0x000000000042C000-memory.dmp

memory/2400-3-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2400-4-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2808-9-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2808-5-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-11-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2400-13-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2808-12-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2808-14-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-17-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-18-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-23-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-24-0x00000000000C0000-0x0000000000142000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 dc2a9b1dbd98c4c020f0f62a6859655f
SHA1 77544ab63b1208a954b5e6daeb097d489392a768
SHA256 78560a14bf6624cb9da5a902f490934923d135b829295c52279b1a78d4c3011f
SHA512 1c2ef720bbeae5e68d71632bf0e647fe0ab86103da38b9f00e4c2ec6d910ad5a33c5b4309d96f9bd74677766ed7f01f18eacdb3a8abac803aa545e9f4f1ae425

memory/2808-29-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-30-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-36-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-37-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-42-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-43-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-48-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-50-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-55-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2808-56-0x00000000000C0000-0x0000000000142000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-23 08:47

Reported

2024-07-23 08:50

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe"

Signatures

Remcos

rat remcos

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nuuuio = "C:\\Users\\Admin\\Pictures\\NONOUTUNMMap\\FirefoxUp.exe" C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe"

C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-23_85f2d3a95f96296376e690b0d3ccf07f_magniber.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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 oijdwe820b397gdb3n298rd2.con-ip.com udp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 35.58.20.217.in-addr.arpa udp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
US 8.8.8.8:53 233.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
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
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
US 8.8.8.8:53 24.73.42.20.in-addr.arpa udp
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp

Files

memory/2868-0-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2868-1-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2868-3-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2868-2-0x0000000000412000-0x000000000042C000-memory.dmp

memory/1728-4-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-5-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/2868-7-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/1728-6-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-8-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-12-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/1728-11-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-13-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-18-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-19-0x00000000000D0000-0x0000000000152000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 1b9dc5f047eba0a429a143b9b6e0bd70
SHA1 41444a2ba929d0aee5a6085487604488871e6752
SHA256 f8d5b2045c19f51c6f114ddf7bfaa982ca9abc2fecd7fb817257119f9d39a75d
SHA512 738c28fa29277f0c6c1dd7122439f8ba2d5e27eb165c4599b4942e0678393a9fb3abb74c455a59e7087168fdf0765a47df295d81512871ef92577e7bc1a0e9db

memory/1728-24-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-26-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-31-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-32-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-37-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-38-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-44-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-45-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-50-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/1728-51-0x00000000000D0000-0x0000000000152000-memory.dmp