Malware Analysis Report

2024-12-07 22:44

Sample ID 240720-v9aqbavbne
Target f3dcd81603a7b53421fcedce515a7c80N.exe
SHA256 fdd56eff190fb7974b5432cafd9f0071049c37c853f229ffb69400e9687f49ab
Tags
remcos ranko7 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

fdd56eff190fb7974b5432cafd9f0071049c37c853f229ffb69400e9687f49ab

Threat Level: Known bad

The file f3dcd81603a7b53421fcedce515a7c80N.exe was found to be: Known bad.

Malicious Activity Summary

remcos ranko7 rat

Remcos

Drops startup file

Executes dropped EXE

Loads dropped DLL

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-20 17:40

Signatures

AutoIT Executable

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-20 17:40

Reported

2024-07-20 17:42

Platform

win7-20240704-en

Max time kernel

120s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe"

Signatures

Remcos

rat remcos

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nouses.vbs C:\Users\Admin\AppData\Local\caprone\nouses.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2716 set thread context of 2736 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe

"C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe"

C:\Users\Admin\AppData\Local\caprone\nouses.exe

"C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 kennyremcosbelintourismedleonline.gleeze.com udp
DE 78.159.112.21:7027 kennyremcosbelintourismedleonline.gleeze.com tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp

Files

memory/2476-10-0x00000000004E0000-0x00000000004E4000-memory.dmp

\Users\Admin\AppData\Local\caprone\nouses.exe

MD5 f3dcd81603a7b53421fcedce515a7c80
SHA1 6f5e15a2415801651cbe54b63eeaddd7df07ab45
SHA256 fdd56eff190fb7974b5432cafd9f0071049c37c853f229ffb69400e9687f49ab
SHA512 f5e969de331afee0b3bed2a58d5159d95c9bbe93eb419980fe061cdcac8de94cc4dfcdd917951c9b6af0003f58f737f7716884472b1fb11a334af78073f51220

C:\Users\Admin\AppData\Local\Temp\oxmanship

MD5 d3c2e6b58aa6aef0054c6eb19728f613
SHA1 40057214bb8cb9b08174bf3dd6d72b98d2d318ab
SHA256 110657963c15958b17156291fe841ad4117e46afa4a174bb6eefbf1b42fd03d7
SHA512 b7e3fe3c6ab3f959d3dd01dba94d365290e52b31d1ced6a10558d275785aea661d146e820bd4d109af5b0bc8ee832085a5225d5f4c8d517fba61d649a72ef59a

C:\Users\Admin\AppData\Local\Temp\chiffons

MD5 afaf8231eb3ca65fab3692ce2bc01752
SHA1 7423205a0a2ba079d87afcd696514d7774a5a767
SHA256 1530b374165530f6156105c241b036bd707eda46030e48d8a2ca5a80de042e95
SHA512 7cd28b7e9ca7bb8321a2b4c7063d304dd3cb0aa47e2f1d77efd83846845edb630fc7d7027fed072b96703f651c65ed2b2ea629deb9fd4d9891fa9df5f186cb4e

memory/2736-30-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-32-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-34-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-35-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-36-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-37-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-38-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-41-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-42-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-43-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-44-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-45-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-46-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2736-47-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-20 17:40

Reported

2024-07-20 17:42

Platform

win10v2004-20240709-en

Max time kernel

119s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe"

Signatures

Remcos

rat remcos

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nouses.vbs C:\Users\Admin\AppData\Local\caprone\nouses.exe N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1164 set thread context of 1412 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 436 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe C:\Users\Admin\AppData\Local\caprone\nouses.exe
PID 436 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe C:\Users\Admin\AppData\Local\caprone\nouses.exe
PID 436 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe C:\Users\Admin\AppData\Local\caprone\nouses.exe
PID 4784 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe
PID 4784 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe
PID 4784 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe
PID 4784 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Users\Admin\AppData\Local\caprone\nouses.exe
PID 4784 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Users\Admin\AppData\Local\caprone\nouses.exe
PID 4784 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Users\Admin\AppData\Local\caprone\nouses.exe
PID 860 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe
PID 860 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe
PID 860 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe
PID 860 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Users\Admin\AppData\Local\caprone\nouses.exe
PID 860 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Users\Admin\AppData\Local\caprone\nouses.exe
PID 860 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Users\Admin\AppData\Local\caprone\nouses.exe
PID 1164 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe
PID 1164 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe
PID 1164 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe
PID 1164 wrote to memory of 1412 N/A C:\Users\Admin\AppData\Local\caprone\nouses.exe C:\Windows\SysWOW64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe

"C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe"

C:\Users\Admin\AppData\Local\caprone\nouses.exe

"C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\f3dcd81603a7b53421fcedce515a7c80N.exe"

C:\Users\Admin\AppData\Local\caprone\nouses.exe

"C:\Users\Admin\AppData\Local\caprone\nouses.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\caprone\nouses.exe"

C:\Users\Admin\AppData\Local\caprone\nouses.exe

"C:\Users\Admin\AppData\Local\caprone\nouses.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\caprone\nouses.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 kennyremcosbelintourismedleonline.gleeze.com udp
DE 78.159.112.21:7027 kennyremcosbelintourismedleonline.gleeze.com tcp
US 8.8.8.8:53 21.112.159.78.in-addr.arpa udp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.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
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp

Files

memory/436-10-0x0000000001E20000-0x0000000001E24000-memory.dmp

C:\Users\Admin\AppData\Local\caprone\nouses.exe

MD5 f3dcd81603a7b53421fcedce515a7c80
SHA1 6f5e15a2415801651cbe54b63eeaddd7df07ab45
SHA256 fdd56eff190fb7974b5432cafd9f0071049c37c853f229ffb69400e9687f49ab
SHA512 f5e969de331afee0b3bed2a58d5159d95c9bbe93eb419980fe061cdcac8de94cc4dfcdd917951c9b6af0003f58f737f7716884472b1fb11a334af78073f51220

C:\Users\Admin\AppData\Local\Temp\chiffons

MD5 afaf8231eb3ca65fab3692ce2bc01752
SHA1 7423205a0a2ba079d87afcd696514d7774a5a767
SHA256 1530b374165530f6156105c241b036bd707eda46030e48d8a2ca5a80de042e95
SHA512 7cd28b7e9ca7bb8321a2b4c7063d304dd3cb0aa47e2f1d77efd83846845edb630fc7d7027fed072b96703f651c65ed2b2ea629deb9fd4d9891fa9df5f186cb4e

C:\Users\Admin\AppData\Local\Temp\oxmanship

MD5 d3c2e6b58aa6aef0054c6eb19728f613
SHA1 40057214bb8cb9b08174bf3dd6d72b98d2d318ab
SHA256 110657963c15958b17156291fe841ad4117e46afa4a174bb6eefbf1b42fd03d7
SHA512 b7e3fe3c6ab3f959d3dd01dba94d365290e52b31d1ced6a10558d275785aea661d146e820bd4d109af5b0bc8ee832085a5225d5f4c8d517fba61d649a72ef59a

C:\Users\Admin\AppData\Local\Temp\aut8F30.tmp

MD5 c31f92c1056b47b083e048871d2718d9
SHA1 3d2c3d7411ac5b8b5a2b1feb560b25c32539a740
SHA256 317ea4d0db0556545afa68262354edcf51e533472cfaf6e78800a52474693373
SHA512 e889590605565573ead4e62abaf478f45e5d89f30bc0f22a0938b17de14c87841fb5f3d8236ad0c644905ef27b0e999af3bc1c9af9c38c8cf68c484f6719931a

C:\Users\Admin\AppData\Local\Temp\aut8F41.tmp

MD5 549439e9d89bc8c7fb1b077c36b8dfaa
SHA1 ce62fb461a019b1d32e60a79188442d7705b062e
SHA256 f5d4975a82537680bfd23fb98e2fc4d19f6b6b8a56552c36b595cf802c08e243
SHA512 a34738b0e1af156a79210b5e850a00d16e2ebda4e859d78aef45140c650430841cc67ef1127c6c4d5fc8cb6e305ad99e35336d68beae527f2316f1578b71d366

C:\Users\Admin\AppData\Local\Temp\oxmanship

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/1412-54-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-55-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-56-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-57-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-58-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-59-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-60-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-63-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-64-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-65-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-66-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-67-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-68-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-69-0x0000000000400000-0x0000000000482000-memory.dmp

memory/1412-70-0x0000000000400000-0x0000000000482000-memory.dmp