Analysis
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max time kernel
147s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
03-04-2024 15:57
Static task
static1
Behavioral task
behavioral1
Sample
0028BGL880-2024.PDF.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
0028BGL880-2024.PDF.exe
Resource
win10v2004-20240226-en
General
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Target
0028BGL880-2024.PDF.exe
-
Size
1.6MB
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MD5
eac95a52ac634d3ea75387201a2c749c
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SHA1
e808ef56d1b382b1e01e16af299a548cb038f52c
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SHA256
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63
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SHA512
6ae5883a1cb8aaa42abc0c8bbfeba2715086ec39ad2028937600b2c925b3093070a72531e4e5abf2d4dafb00bcbab8c2fd5f97aae590dd87645befc27701d346
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SSDEEP
49152:ay6imwGhfj4GBT2z95Zw/L+gwnzFnwyuPTh:azimw4f8iSuD+g
Malware Config
Extracted
remcos
RemoteHost
127.0.0.1:45671
127.0.0.1:55677
192.3.101.8:55677
192.3.101.8:45671
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-2P1XPK
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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ModiLoader Second Stage 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2952-2-0x0000000002990000-0x0000000003990000-memory.dmp modiloader_stage2 -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/1628-70-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral2/memory/1628-73-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/1792-63-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/1792-72-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/1792-80-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Nirsoft 7 IoCs
Processes:
resource yara_rule behavioral2/memory/1792-63-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/1628-70-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/1792-72-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/1628-73-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/4020-76-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/4020-78-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/1792-80-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft -
Executes dropped EXE 1 IoCs
Processes:
4847402.exepid process 2616 4847402.exe -
Loads dropped DLL 1 IoCs
Processes:
4847402.exepid process 2616 4847402.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
0028BGL880-2024.PDF.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts 0028BGL880-2024.PDF.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
0028BGL880-2024.PDF.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dkesuvii = "C:\\Users\\Public\\Dkesuvii.url" 0028BGL880-2024.PDF.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
0028BGL880-2024.PDF.exedescription pid process target process PID 2952 set thread context of 1792 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe PID 2952 set thread context of 1628 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe PID 2952 set thread context of 4020 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe -
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 16 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
powershell.exe0028BGL880-2024.PDF.exe0028BGL880-2024.PDF.exepid process 1228 powershell.exe 1228 powershell.exe 1792 0028BGL880-2024.PDF.exe 1792 0028BGL880-2024.PDF.exe 4020 0028BGL880-2024.PDF.exe 4020 0028BGL880-2024.PDF.exe 1792 0028BGL880-2024.PDF.exe 1792 0028BGL880-2024.PDF.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
Processes:
0028BGL880-2024.PDF.exepid process 2952 0028BGL880-2024.PDF.exe 2952 0028BGL880-2024.PDF.exe 2952 0028BGL880-2024.PDF.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exe0028BGL880-2024.PDF.exedescription pid process Token: SeDebugPrivilege 1228 powershell.exe Token: SeDebugPrivilege 4020 0028BGL880-2024.PDF.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
0028BGL880-2024.PDF.exepid process 2952 0028BGL880-2024.PDF.exe -
Suspicious use of WriteProcessMemory 29 IoCs
Processes:
0028BGL880-2024.PDF.execmd.exe4847402.execmd.execmd.exedescription pid process target process PID 2952 wrote to memory of 4608 2952 0028BGL880-2024.PDF.exe cmd.exe PID 2952 wrote to memory of 4608 2952 0028BGL880-2024.PDF.exe cmd.exe PID 2952 wrote to memory of 4608 2952 0028BGL880-2024.PDF.exe cmd.exe PID 2952 wrote to memory of 1012 2952 0028BGL880-2024.PDF.exe cmd.exe PID 2952 wrote to memory of 1012 2952 0028BGL880-2024.PDF.exe cmd.exe PID 2952 wrote to memory of 1012 2952 0028BGL880-2024.PDF.exe cmd.exe PID 2952 wrote to memory of 1772 2952 0028BGL880-2024.PDF.exe cmd.exe PID 2952 wrote to memory of 1772 2952 0028BGL880-2024.PDF.exe cmd.exe PID 2952 wrote to memory of 1772 2952 0028BGL880-2024.PDF.exe cmd.exe PID 1772 wrote to memory of 2616 1772 cmd.exe 4847402.exe PID 1772 wrote to memory of 2616 1772 cmd.exe 4847402.exe PID 2616 wrote to memory of 3604 2616 4847402.exe cmd.exe PID 2616 wrote to memory of 3604 2616 4847402.exe cmd.exe PID 3604 wrote to memory of 3564 3604 cmd.exe cmd.exe PID 3604 wrote to memory of 3564 3604 cmd.exe cmd.exe PID 3564 wrote to memory of 1228 3564 cmd.exe powershell.exe PID 3564 wrote to memory of 1228 3564 cmd.exe powershell.exe PID 2952 wrote to memory of 3772 2952 0028BGL880-2024.PDF.exe extrac32.exe PID 2952 wrote to memory of 3772 2952 0028BGL880-2024.PDF.exe extrac32.exe PID 2952 wrote to memory of 3772 2952 0028BGL880-2024.PDF.exe extrac32.exe PID 2952 wrote to memory of 1792 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe PID 2952 wrote to memory of 1792 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe PID 2952 wrote to memory of 1792 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe PID 2952 wrote to memory of 1628 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe PID 2952 wrote to memory of 1628 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe PID 2952 wrote to memory of 1628 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe PID 2952 wrote to memory of 4020 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe PID 2952 wrote to memory of 4020 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe PID 2952 wrote to memory of 4020 2952 0028BGL880-2024.PDF.exe 0028BGL880-2024.PDF.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe"C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd /c mkdir "\\?\C:\Windows "2⤵
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C:\Windows\SysWOW64\cmd.execmd /c mkdir "\\?\C:\Windows \System32"2⤵
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C:\Windows\SysWOW64\cmd.execmd /c "C:\Windows \System32\4847402.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows \System32\4847402.exe"C:\Windows \System32\4847402.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.execmd /c powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\extrac32.exeC:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe C:\\Users\\Public\\Libraries\\Dkesuvii.PIF2⤵
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C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exeC:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe /stext "C:\Users\Admin\AppData\Local\Temp\ydnhtulprahkywcqllmpcrrannpazs"2⤵
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exeC:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe /stext "C:\Users\Admin\AppData\Local\Temp\jgsstmwqfizxjcyudwgqewmjouhbsdzrf"2⤵
- Accesses Microsoft Outlook accounts
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C:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exeC:\Users\Admin\AppData\Local\Temp\0028BGL880-2024.PDF.exe /stext "C:\Users\Admin\AppData\Local\Temp\taxku"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\remcos\logs.datFilesize
144B
MD513eb7c407595f636bd34e9a9a5934c35
SHA15f3602a77c2a66fcc276cae5b3735fa2403a95fc
SHA2568e35b23a3cf6205ff096262dba85d6feff131242cc679439d39ead0e4810ec48
SHA5127928b2ac45fa2cf30556d377007b13a141af561624b53c3ddfc950c8818f1066868f4bd5f937cb4086ce18ada3ca1316b45052f1d2a7ef28f8447115de641e39
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dnfkoiyd.oqs.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Local\Temp\ydnhtulprahkywcqllmpcrrannpazsFilesize
4KB
MD51be00116b3b4ab27e31b6c0193cca4b3
SHA19cd8b21573014b9255004a65a497fd3c7e31faec
SHA25608293be277a95b17991cb7d2b1000a04777b5000a13950da9274e176c7b17f7a
SHA512869cb03b8f04d4f06170ddaa74c12f90998548a2b712bed0bc3ce9a2bdfbc3d7b5eba26bbf64d87777d753a09d076b41263d30cf43b56200c3aa3b779aeb3e3a
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C:\Windows \System32\4847402.exeFilesize
128KB
MD5231ce1e1d7d98b44371ffff407d68b59
SHA125510d0f6353dbf0c9f72fc880de7585e34b28ff
SHA25630951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
SHA512520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612
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C:\Windows \System32\netutils.dllFilesize
112KB
MD58541304aadba4ae8620bb2699f6e0437
SHA1e0b28a6ecd32d3789433217364c1006de9892df8
SHA25650573c81e5773c13a5411e8446d7fb17956865675782239818f7affd40a2fecb
SHA512c18b1233c138229705242e1cdc00970e45e414d8da9c643b1196ec9de261ae18076e22bed6fcc48c07d1f0e851469db9147f083f3c3c76a26b75994419392455
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C:\windows \system32\KDECO.batFilesize
11KB
MD5c545650595b479c81ad6b9d8882aae39
SHA17a98aa2e6eee23b3c1bba876955d525bc618b3f0
SHA256a3a80983cb33159f0455fa0135789402558baa1460db94d0071318512b8cb5f9
SHA51285ac596a7da9072a28c4178e4fdedc98f1b49c8e3fe5612cfe464833297b13f65d2dc59b52d7fc9970cff8f98d954111229aec0ed9dded454e03b0cf4ebb6ff3
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memory/1228-24-0x00000270FEAA0000-0x00000270FEAB0000-memory.dmpFilesize
64KB
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memory/1228-32-0x00007FFFA2D50000-0x00007FFFA3811000-memory.dmpFilesize
10.8MB
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memory/1228-29-0x00000270FEAA0000-0x00000270FEAB0000-memory.dmpFilesize
64KB
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memory/1228-19-0x00000270FEA10000-0x00000270FEA32000-memory.dmpFilesize
136KB
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memory/1228-23-0x00007FFFA2D50000-0x00007FFFA3811000-memory.dmpFilesize
10.8MB
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memory/1628-73-0x0000000000400000-0x0000000000462000-memory.dmpFilesize
392KB
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memory/1628-70-0x0000000000400000-0x0000000000462000-memory.dmpFilesize
392KB
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memory/1628-56-0x0000000000400000-0x0000000000462000-memory.dmpFilesize
392KB
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memory/1628-65-0x0000000000400000-0x0000000000462000-memory.dmpFilesize
392KB
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memory/1792-55-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1792-63-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1792-80-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1792-61-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1792-72-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2616-15-0x00000000613C0000-0x00000000613E3000-memory.dmpFilesize
140KB
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memory/2952-89-0x0000000033D80000-0x0000000033D99000-memory.dmpFilesize
100KB
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memory/2952-44-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-52-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-54-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-0-0x0000000000840000-0x0000000000841000-memory.dmpFilesize
4KB
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memory/2952-40-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-129-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-50-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-38-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-49-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-46-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-4-0x0000000000400000-0x00000000005AF000-memory.dmpFilesize
1.7MB
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memory/2952-128-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-106-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-105-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-51-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-43-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-83-0x0000000033D80000-0x0000000033D99000-memory.dmpFilesize
100KB
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memory/2952-2-0x0000000002990000-0x0000000003990000-memory.dmpFilesize
16.0MB
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memory/2952-86-0x0000000033D80000-0x0000000033D99000-memory.dmpFilesize
100KB
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memory/2952-88-0x0000000033D80000-0x0000000033D99000-memory.dmpFilesize
100KB
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memory/2952-87-0x0000000033D80000-0x0000000033D99000-memory.dmpFilesize
100KB
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memory/2952-41-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-90-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-93-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-94-0x00000000152B0000-0x00000000162B0000-memory.dmpFilesize
16.0MB
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memory/2952-1-0x0000000002990000-0x0000000003990000-memory.dmpFilesize
16.0MB
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memory/2952-100-0x0000000033D80000-0x0000000033D99000-memory.dmpFilesize
100KB
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memory/4020-71-0x0000000000400000-0x0000000000424000-memory.dmpFilesize
144KB
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memory/4020-78-0x0000000000400000-0x0000000000424000-memory.dmpFilesize
144KB
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memory/4020-76-0x0000000000400000-0x0000000000424000-memory.dmpFilesize
144KB
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memory/4020-62-0x0000000000400000-0x0000000000424000-memory.dmpFilesize
144KB