Malware Analysis Report

2024-11-13 18:47

Sample ID 240725-2fyzdasblg
Target 162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410
SHA256 162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410
Tags
remcos remotehost discovery 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

162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410

Threat Level: Known bad

The file 162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410 was found to be: Known bad.

Malicious Activity Summary

remcos remotehost discovery rat

Remcos

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-25 22:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-25 22:32

Reported

2024-07-25 22:37

Platform

win7-20240708-en

Max time kernel

298s

Max time network

294s

Command Line

"C:\Users\Admin\AppData\Local\Temp\162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410.exe"

Signatures

Remcos

rat remcos

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\162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410.exe

"C:\Users\Admin\AppData\Local\Temp\162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410.exe"

Network

Country Destination Domain Proto
N/A 127.0.0.1:58122 tcp
US 8.8.8.8:53 ikbro.duckdns.org udp
MY 103.186.117.89:58122 ikbro.duckdns.org tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp

Files

memory/2632-0-0x0000000000590000-0x0000000000615000-memory.dmp

memory/2632-1-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-5-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-2-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-6-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-7-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-8-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-9-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-10-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-11-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-13-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-20-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-21-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-22-0x0000000000220000-0x00000000002A2000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 09d07d1b7d4de37eae69f563f83390a9
SHA1 d239416af4bc5dd8b0c20be58a2813786529ca4b
SHA256 f9272d7641dd2ee50e008aa150c8893cf6f2ee86f08240f12a19f73dda3b2aa9
SHA512 df9c1ca4d9548d6a190a0ba43ae4f22d1f93e4d9f5ccf11f9f97143729e209115319ce0ebe0dc1c10b5b8032a1a87a0f6518680dc3404ef5a5d5fa5a8314fda8

memory/2632-32-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-43-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-44-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-54-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-55-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-65-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-66-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-76-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-99-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-98-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-109-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-120-0x0000000000220000-0x00000000002A2000-memory.dmp

memory/2632-121-0x0000000000220000-0x00000000002A2000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-25 22:32

Reported

2024-07-25 22:37

Platform

win10-20240404-en

Max time kernel

300s

Max time network

298s

Command Line

"C:\Users\Admin\AppData\Local\Temp\162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410.exe"

Signatures

Remcos

rat remcos

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\162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410.exe

"C:\Users\Admin\AppData\Local\Temp\162589ef58a383d83767a1e5d5d6be6f4f61eb94243daaf242646cdea1b6f410.exe"

Network

Country Destination Domain Proto
N/A 127.0.0.1:58122 tcp
US 8.8.8.8:53 ikbro.duckdns.org udp
MY 103.186.117.89:58122 ikbro.duckdns.org tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
US 8.8.8.8:53 89.117.186.103.in-addr.arpa udp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 3.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/4192-0-0x0000000000590000-0x0000000000615000-memory.dmp

memory/4192-1-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-2-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-6-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-5-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-7-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-8-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-9-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-10-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-11-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-13-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-16-0x0000000000590000-0x0000000000615000-memory.dmp

memory/4192-20-0x00000000004D0000-0x0000000000552000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 348b2674d584ba6642711887675321f6
SHA1 2a5c9029330495b57e58c07b41d67c2d5bb0fcab
SHA256 ad583904130546f052c72eebf8e41ffc82b8be8999a1d04c1454a00022c0422e
SHA512 494debea7fa05ec7d8be64aee365da424e22f49320370c21827bce733a25d937806668bd963b08ef8f441a4734f90de6d337c7e7257f95d145bb2072013b2076

memory/4192-23-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-22-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-34-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-33-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-44-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-45-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-55-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-56-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-67-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-66-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-77-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-78-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-88-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-89-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-99-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-100-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-110-0x00000000004D0000-0x0000000000552000-memory.dmp

memory/4192-111-0x00000000004D0000-0x0000000000552000-memory.dmp