Malware Analysis Report

2025-01-02 03:20

Sample ID 240403-tdxpjafe98
Target 0028BGL880-2024.PDF.exe
SHA256 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63
Tags
modiloader trojan remcos remotehost collection persistence rat spyware stealer
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

f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63

Threat Level: Known bad

The file 0028BGL880-2024.PDF.exe was found to be: Known bad.

Malicious Activity Summary

modiloader trojan remcos remotehost collection persistence rat spyware stealer

Remcos

ModiLoader, DBatLoader

NirSoft WebBrowserPassView

ModiLoader Second Stage

Nirsoft

NirSoft MailPassView

Reads user/profile data of web browsers

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Accesses Microsoft Outlook accounts

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Script User-Agent

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-03 15:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-03 15:57

Reported

2024-04-03 15:59

Platform

win7-20240221-en

Max time kernel

140s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

ModiLoader Second Stage

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

Processes

C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe

"C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 696

Network

Country Destination Domain Proto
US 8.8.8.8:53 1016.filemail.com udp
US 192.240.97.18:443 1016.filemail.com tcp
US 192.240.97.18:443 1016.filemail.com tcp

Files

memory/2992-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

memory/2992-1-0x0000000003180000-0x0000000004180000-memory.dmp

memory/2992-2-0x0000000003180000-0x0000000004180000-memory.dmp

memory/2992-4-0x00000000001B0000-0x00000000001B1000-memory.dmp

memory/2992-5-0x0000000000400000-0x00000000005AF000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-03 15:57

Reported

2024-04-03 15:59

Platform

win10v2004-20240226-en

Max time kernel

147s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

Remcos

rat remcos

ModiLoader Second Stage

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

NirSoft MailPassView

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

NirSoft WebBrowserPassView

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

Nirsoft

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows \System32\4847402.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows \System32\4847402.exe N/A

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook accounts

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dkesuvii = "C:\\Users\\Public\\Dkesuvii.url" C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe N/A

Script User-Agent

Description Indicator Process Target
HTTP User-Agent header Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) N/A N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2952 wrote to memory of 4608 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\cmd.exe
PID 2952 wrote to memory of 4608 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\cmd.exe
PID 2952 wrote to memory of 4608 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\cmd.exe
PID 2952 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\cmd.exe
PID 2952 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\cmd.exe
PID 2952 wrote to memory of 1012 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\cmd.exe
PID 2952 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\cmd.exe
PID 2952 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\cmd.exe
PID 2952 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\cmd.exe
PID 1772 wrote to memory of 2616 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows \System32\4847402.exe
PID 1772 wrote to memory of 2616 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows \System32\4847402.exe
PID 2616 wrote to memory of 3604 N/A C:\Windows \System32\4847402.exe C:\Windows\system32\cmd.exe
PID 2616 wrote to memory of 3604 N/A C:\Windows \System32\4847402.exe C:\Windows\system32\cmd.exe
PID 3604 wrote to memory of 3564 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\cmd.exe
PID 3604 wrote to memory of 3564 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\cmd.exe
PID 3564 wrote to memory of 1228 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3564 wrote to memory of 1228 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2952 wrote to memory of 3772 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\extrac32.exe
PID 2952 wrote to memory of 3772 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\extrac32.exe
PID 2952 wrote to memory of 3772 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Windows\SysWOW64\extrac32.exe
PID 2952 wrote to memory of 1792 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe
PID 2952 wrote to memory of 1792 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe
PID 2952 wrote to memory of 1792 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe
PID 2952 wrote to memory of 1628 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe
PID 2952 wrote to memory of 1628 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe
PID 2952 wrote to memory of 1628 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe
PID 2952 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe
PID 2952 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe
PID 2952 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe

"C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe"

C:\Windows\SysWOW64\cmd.exe

cmd /c mkdir "\\?\C:\Windows "

C:\Windows\SysWOW64\cmd.exe

cmd /c mkdir "\\?\C:\Windows \System32"

C:\Windows\SysWOW64\cmd.exe

cmd /c "C:\Windows \System32\4847402.exe"

C:\Windows \System32\4847402.exe

"C:\Windows \System32\4847402.exe"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""

C:\Windows\system32\cmd.exe

cmd /c powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"

C:\Windows\SysWOW64\extrac32.exe

C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\\Users\\Public\\Libraries\\Dkesuvii.PIF

C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe

C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe /stext "C:\Users\Admin\AppData\Local\Temp\ydnhtulprahkywcqllmpcrrannpazs"

C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe

C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe /stext "C:\Users\Admin\AppData\Local\Temp\jgsstmwqfizxjcyudwgqewmjouhbsdzrf"

C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe

C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe /stext "C:\Users\Admin\AppData\Local\Temp\taxku"

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 227.66.18.2.in-addr.arpa udp
US 8.8.8.8:53 21.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 1016.filemail.com udp
US 192.240.97.18:443 1016.filemail.com tcp
US 192.240.97.18:443 1016.filemail.com tcp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 18.97.240.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
N/A 127.0.0.1:45671 tcp
N/A 127.0.0.1:55677 tcp
US 192.3.101.8:55677 tcp
US 8.8.8.8:53 8.101.3.192.in-addr.arpa udp
US 192.3.101.8:55677 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 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 225.66.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/2952-0-0x0000000000840000-0x0000000000841000-memory.dmp

memory/2952-1-0x0000000002990000-0x0000000003990000-memory.dmp

memory/2952-2-0x0000000002990000-0x0000000003990000-memory.dmp

memory/2952-4-0x0000000000400000-0x00000000005AF000-memory.dmp

C:\Windows \System32\4847402.exe

MD5 231ce1e1d7d98b44371ffff407d68b59
SHA1 25510d0f6353dbf0c9f72fc880de7585e34b28ff
SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
SHA512 520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

C:\Windows \System32\netutils.dll

MD5 8541304aadba4ae8620bb2699f6e0437
SHA1 e0b28a6ecd32d3789433217364c1006de9892df8
SHA256 50573c81e5773c13a5411e8446d7fb17956865675782239818f7affd40a2fecb
SHA512 c18b1233c138229705242e1cdc00970e45e414d8da9c643b1196ec9de261ae18076e22bed6fcc48c07d1f0e851469db9147f083f3c3c76a26b75994419392455

memory/2616-15-0x00000000613C0000-0x00000000613E3000-memory.dmp

C:\windows \system32\KDECO.bat

MD5 c545650595b479c81ad6b9d8882aae39
SHA1 7a98aa2e6eee23b3c1bba876955d525bc618b3f0
SHA256 a3a80983cb33159f0455fa0135789402558baa1460db94d0071318512b8cb5f9
SHA512 85ac596a7da9072a28c4178e4fdedc98f1b49c8e3fe5612cfe464833297b13f65d2dc59b52d7fc9970cff8f98d954111229aec0ed9dded454e03b0cf4ebb6ff3

memory/1228-19-0x00000270FEA10000-0x00000270FEA32000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dnfkoiyd.oqs.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1228-23-0x00007FFFA2D50000-0x00007FFFA3811000-memory.dmp

memory/1228-24-0x00000270FEAA0000-0x00000270FEAB0000-memory.dmp

memory/1228-29-0x00000270FEAA0000-0x00000270FEAB0000-memory.dmp

memory/1228-32-0x00007FFFA2D50000-0x00007FFFA3811000-memory.dmp

memory/2952-38-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-40-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-41-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-43-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-44-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-46-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-49-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-50-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-51-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-52-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-54-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/1792-55-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1628-56-0x0000000000400000-0x0000000000462000-memory.dmp

memory/4020-62-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1792-63-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1628-65-0x0000000000400000-0x0000000000462000-memory.dmp

memory/1628-70-0x0000000000400000-0x0000000000462000-memory.dmp

memory/1792-72-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1628-73-0x0000000000400000-0x0000000000462000-memory.dmp

memory/4020-76-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4020-78-0x0000000000400000-0x0000000000424000-memory.dmp

memory/4020-71-0x0000000000400000-0x0000000000424000-memory.dmp

memory/1792-61-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1792-80-0x0000000000400000-0x0000000000478000-memory.dmp

memory/2952-83-0x0000000033D80000-0x0000000033D99000-memory.dmp

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

MD5 1be00116b3b4ab27e31b6c0193cca4b3
SHA1 9cd8b21573014b9255004a65a497fd3c7e31faec
SHA256 08293be277a95b17991cb7d2b1000a04777b5000a13950da9274e176c7b17f7a
SHA512 869cb03b8f04d4f06170ddaa74c12f90998548a2b712bed0bc3ce9a2bdfbc3d7b5eba26bbf64d87777d753a09d076b41263d30cf43b56200c3aa3b779aeb3e3a

memory/2952-86-0x0000000033D80000-0x0000000033D99000-memory.dmp

memory/2952-88-0x0000000033D80000-0x0000000033D99000-memory.dmp

memory/2952-87-0x0000000033D80000-0x0000000033D99000-memory.dmp

memory/2952-89-0x0000000033D80000-0x0000000033D99000-memory.dmp

memory/2952-90-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-93-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-94-0x00000000152B0000-0x00000000162B0000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 13eb7c407595f636bd34e9a9a5934c35
SHA1 5f3602a77c2a66fcc276cae5b3735fa2403a95fc
SHA256 8e35b23a3cf6205ff096262dba85d6feff131242cc679439d39ead0e4810ec48
SHA512 7928b2ac45fa2cf30556d377007b13a141af561624b53c3ddfc950c8818f1066868f4bd5f937cb4086ce18ada3ca1316b45052f1d2a7ef28f8447115de641e39

memory/2952-100-0x0000000033D80000-0x0000000033D99000-memory.dmp

memory/2952-105-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-106-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-128-0x00000000152B0000-0x00000000162B0000-memory.dmp

memory/2952-129-0x00000000152B0000-0x00000000162B0000-memory.dmp