Analysis Overview
SHA256
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63
Threat Level: Known bad
The file 0028BGL880-2024.PDF.exe was found to be: Known bad.
Malicious Activity Summary
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
Enterprise Matrix V15
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
Signatures
ModiLoader, DBatLoader
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2992 wrote to memory of 2252 | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2992 wrote to memory of 2252 | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2992 wrote to memory of 2252 | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2992 wrote to memory of 2252 | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | C:\Windows\SysWOW64\WerFault.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\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
Signatures
ModiLoader, DBatLoader
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
Accesses Microsoft Outlook accounts
| 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
| 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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2952 set thread context 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 set thread context 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 set thread context of 4020 | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe |
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe | 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
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