Malware Analysis Report

2025-01-02 03:28

Sample ID 240724-bbg7ysydlq
Target 2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber
SHA256 0dec78e042abdca977b0365e036b572cd8246ea6445e4813cda6a61e0b1bd9dd
Tags
remcos 1&==de julio==2024 discovery persistence rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0dec78e042abdca977b0365e036b572cd8246ea6445e4813cda6a61e0b1bd9dd

Threat Level: Known bad

The file 2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber was found to be: Known bad.

Malicious Activity Summary

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

Remcos

Adds Run key to start application

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-24 00:58

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-24 00:58

Reported

2024-07-24 01:00

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe"

Signatures

Remcos

rat remcos

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nuuuio = "C:\\Users\\Admin\\Pictures\\NONOUTUNMMap\\FirefoxUp.exe" C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe"

C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe"

Network

Country Destination Domain Proto
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 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.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 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.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
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp
US 8.8.8.8:53 13.227.111.52.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
CO 181.131.218.107:5023 oijdwe820b397gdb3n298rd2.con-ip.com tcp

Files

memory/1780-0-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/1780-3-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/1780-1-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/1780-2-0x0000000000412000-0x000000000042C000-memory.dmp

memory/5092-4-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-5-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-6-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-10-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-7-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-12-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/1780-11-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/5092-13-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-18-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-19-0x00000000000D0000-0x0000000000152000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 923c738e3b2da18b7cc68b91e83eaf25
SHA1 7c622494dddf308278ab748e49e0b3e450801392
SHA256 bda654b775b6b351db46ae7d76edfab00ae260057cee87e5ea66567a490c4931
SHA512 1c99ef40f036e73169e5790d9adea11d6ff6cbbffdaf50b382ae6a85a4eadf63e064243d637fd325234bd4fc48e173ee4f1dd171acbf0bd82e06ed666c19d16b

memory/5092-24-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-25-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-31-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-32-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-37-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-38-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-43-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-45-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-50-0x00000000000D0000-0x0000000000152000-memory.dmp

memory/5092-51-0x00000000000D0000-0x0000000000152000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-24 00:58

Reported

2024-07-24 01:00

Platform

win7-20240704-en

Max time kernel

149s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe"

Signatures

Remcos

rat remcos

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\Nuuuio = "C:\\Users\\Admin\\Pictures\\NONOUTUNMMap\\FirefoxUp.exe" C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe"

C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_magniber.exe

"C:\Users\Admin\AppData\Local\Temp\2024-07-24_b1d2efedd1759d4a8884bf175b4c83a6_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

Files

memory/2284-1-0x0000000000412000-0x000000000042C000-memory.dmp

memory/2284-0-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2284-2-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2284-3-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2720-4-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-8-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2720-10-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2284-11-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2720-12-0x0000000000400000-0x0000000000A26000-memory.dmp

memory/2720-13-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-16-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-17-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-22-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-23-0x00000000000C0000-0x0000000000142000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 9abc39ec81a79e0eb86fd32bf9084568
SHA1 e98689db9ee1d8e2787fba8e2a89b6d5b7bf7510
SHA256 bfb9d452be1d7fa9692cd7f9c1df81c37488af9a1585b0c7c867c565d299b00e
SHA512 e0e9cee5fb45dde8746e5fe0a220c46eebf51656aaa484eef72943d747453c2aaf379e8e1d792a39903c35c205a01cdd4db057f32e6735cb8f77171de9a959a9

memory/2720-28-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-29-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-35-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-36-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-41-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-42-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-48-0x00000000000C0000-0x0000000000142000-memory.dmp

memory/2720-49-0x00000000000C0000-0x0000000000142000-memory.dmp