Malware Analysis Report

2025-01-02 03:21

Sample ID 240402-wctycsgg8y
Target Quotation.zip
SHA256 5f41a3813e433c05444cc3f8b3f41e4284b3b27af7c476704bcebe170098780f
Tags
remcos remotehost 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 Overview

score
10/10

SHA256

5f41a3813e433c05444cc3f8b3f41e4284b3b27af7c476704bcebe170098780f

Threat Level: Known bad

The file Quotation.zip was found to be: Known bad.

Malicious Activity Summary

remcos remotehost rat

Remcos

Drops startup file

Executes dropped EXE

Suspicious use of SetThreadContext

AutoIT Executable

Unsigned PE

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-02 17:47

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

2024-04-02 17:47

Reported

2024-04-02 18:21

Platform

win10v2004-20240226-en

Max time kernel

1802s

Max time network

1783s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Quotation.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\excel.vbs C:\Users\Admin\AppData\Local\directory\excel.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\directory\excel.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 2624 set thread context of 4612 N/A C:\Users\Admin\AppData\Local\directory\excel.exe C:\Windows\SysWOW64\svchost.exe

Suspicious behavior: MapViewOfSection

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeManageVolumePrivilege N/A C:\Windows\System32\svchost.exe N/A

Processes

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

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

C:\Users\Admin\AppData\Local\directory\excel.exe

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

C:\Windows\SysWOW64\svchost.exe

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

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k UnistackSvcGroup

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 218.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 shgoini.com udp
US 107.175.229.143:30902 shgoini.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 143.229.175.107.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 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 175.117.168.52.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 57.162.23.2.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 167.161.23.2.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 195.177.78.104.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 80.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp

Files

memory/4736-10-0x0000000000CE0000-0x0000000000CE4000-memory.dmp

C:\Users\Admin\AppData\Local\directory\excel.exe

MD5 1878ed8f86e464d1b474571a34a75a98
SHA1 e06eabaf88909ae0bb0cc9cc29b50069741b84fe
SHA256 7311f971ed4303955b9576add44ba70569c0995ffc935e02bf7e9d7187388241
SHA512 7539fc21cfb7250d90ae9ebc34aa33956e8e51622ea7ac977397de86715b9d79745250b092bf13c8da2041f6ab4114bd03877c4b8c7bf5ac02e6059a52d2cd82

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

MD5 33b3a37e1729538227a84e8aec307e27
SHA1 d888cf3906a4bc58ccc74cba9fe6f314d3be29dd
SHA256 61616629bc83442de66185fb8a8b3ed37d4fc690d473e28cf570527a5db7d456
SHA512 7d1f025b2c18f6b1e7d1793897a17bc36f95a417d1764efc109144b0ffbb8c0a43ea216cab1e3d16935565bcd309ac8845e9df1805f99a1ac8d1f687ad52ef80

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

MD5 5836e6fb1198f5826ca8facdba529e79
SHA1 cc17afcef2c435265036b8520728963b91ae652c
SHA256 f59b9e90acdbe2a0cc3e5e66bb3214adb7506fc775b8264e36e408a21decfba0
SHA512 f66d5d9e96911ffe7228d2db7b305ee404ba59d25fcde778d00a590417e3606b72dac0a91b7edb4e5d42f7a5a14990eaf4b5058e16ca5e12b49701c6168e3045

memory/4612-28-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-29-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-30-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-31-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-32-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-34-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-35-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-36-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-38-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-39-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-40-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-41-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-42-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-43-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-46-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-47-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-48-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-49-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-50-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-51-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-54-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-55-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-56-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-57-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-58-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-60-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-61-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-62-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-70-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-71-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-74-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-75-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-76-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-82-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-83-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-88-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-92-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4612-93-0x0000000000400000-0x0000000000482000-memory.dmp