Analysis

  • max time kernel
    85s
  • max time network
    85s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-02-2024 22:41

General

  • Target

    Client.exe

  • Size

    158KB

  • MD5

    e342241a46ccb69a5e50aab1c3910172

  • SHA1

    63f28e0544c4689fc934e61269c5b5c47e8585a8

  • SHA256

    6e720a7d86006e8cc69a9edf11e3e78608061cf606eca26d235db6282b002b97

  • SHA512

    98a799f600c4562228d5f6b3c431bffac7595908dbffa6484995fe5b958656eb31c9b42dd873f72aa49feec203e8db16c384dccaeb377d34f55beeffc7b8ceda

  • SSDEEP

    3072:qbzmH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPGKO8Y:qbzme0ODhTEPgnjuIJzo+PPcfPG18

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

185.103.101.105:1337

Mutex

VzRgLAhmN

Signatures

  • ArrowRat

    Remote access tool with various capabilities first seen in late 2021.

  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 25 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 40 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 22 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client.exe
    "C:\Users\Admin\AppData\Local\Temp\Client.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • Modifies Installed Components in the registry
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4064
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 185.103.101.105 1337 VzRgLAhmN
      2⤵
        PID:1864
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1572
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:5108
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2952
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2308
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4840
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2256
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:452
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3740
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1512
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3264
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1520
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2160
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3104
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2040
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3852
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4476
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2772
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4448
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3616
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1044
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1664
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3456
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:2036

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Packages\microsoft.windows.search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\1SA07OI6\microsoft.windows[1].xml

        Filesize

        97B

        MD5

        fb9854a5b056cc3d006b38bf0eab1b7c

        SHA1

        0a2b0432e2e9938be1f652c2247827e47b265f44

        SHA256

        3d454d15255bb82fb8a4cfa40ea848af32395be899aaaf83b6d626a814aa21c2

        SHA512

        20366182bf5a658b19e3df4eef2fa4e484bdcecc85a893834fbcb2b0ab64100a7694c3dbbdf1597bf3e3a747ede6fe7b81aab5f07653ef40a515edbef90ed00d

      • memory/452-122-0x00000235F22A0000-0x00000235F22C0000-memory.dmp

        Filesize

        128KB

      • memory/452-120-0x00000235F1E50000-0x00000235F1E70000-memory.dmp

        Filesize

        128KB

      • memory/452-118-0x00000235F1E90000-0x00000235F1EB0000-memory.dmp

        Filesize

        128KB

      • memory/1044-396-0x000001B9EC7D0000-0x000001B9EC7F0000-memory.dmp

        Filesize

        128KB

      • memory/1512-162-0x0000021CAB2A0000-0x0000021CAB2C0000-memory.dmp

        Filesize

        128KB

      • memory/1512-164-0x0000021CAB260000-0x0000021CAB280000-memory.dmp

        Filesize

        128KB

      • memory/1512-166-0x0000021CAB880000-0x0000021CAB8A0000-memory.dmp

        Filesize

        128KB

      • memory/1520-206-0x0000026F66F40000-0x0000026F66F60000-memory.dmp

        Filesize

        128KB

      • memory/1520-209-0x0000026F67300000-0x0000026F67320000-memory.dmp

        Filesize

        128KB

      • memory/1520-208-0x0000026F66F00000-0x0000026F66F20000-memory.dmp

        Filesize

        128KB

      • memory/1864-176-0x0000000074F60000-0x0000000075710000-memory.dmp

        Filesize

        7.7MB

      • memory/1864-12-0x0000000005E50000-0x0000000005EA0000-memory.dmp

        Filesize

        320KB

      • memory/1864-1-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/1864-4-0x0000000005550000-0x00000000055E2000-memory.dmp

        Filesize

        584KB

      • memory/1864-198-0x0000000005740000-0x0000000005750000-memory.dmp

        Filesize

        64KB

      • memory/1864-6-0x00000000055F0000-0x000000000568C000-memory.dmp

        Filesize

        624KB

      • memory/1864-5-0x0000000074F60000-0x0000000075710000-memory.dmp

        Filesize

        7.7MB

      • memory/1864-7-0x0000000005740000-0x0000000005750000-memory.dmp

        Filesize

        64KB

      • memory/1864-8-0x0000000005ED0000-0x0000000006474000-memory.dmp

        Filesize

        5.6MB

      • memory/1864-9-0x0000000005D90000-0x0000000005DF6000-memory.dmp

        Filesize

        408KB

      • memory/2040-274-0x0000029A6EF60000-0x0000029A6EF80000-memory.dmp

        Filesize

        128KB

      • memory/2040-276-0x0000029A6EF20000-0x0000029A6EF40000-memory.dmp

        Filesize

        128KB

      • memory/2040-278-0x0000029A6F320000-0x0000029A6F340000-memory.dmp

        Filesize

        128KB

      • memory/2160-224-0x000001E9A4250000-0x000001E9A4270000-memory.dmp

        Filesize

        128KB

      • memory/2160-226-0x000001E9A4210000-0x000001E9A4230000-memory.dmp

        Filesize

        128KB

      • memory/2160-228-0x000001E9A4660000-0x000001E9A4680000-memory.dmp

        Filesize

        128KB

      • memory/2180-0-0x00000255518B0000-0x00000255518DE000-memory.dmp

        Filesize

        184KB

      • memory/2180-132-0x00007FF9C7C00000-0x00007FF9C86C1000-memory.dmp

        Filesize

        10.8MB

      • memory/2180-3-0x000002556BEC0000-0x000002556BED0000-memory.dmp

        Filesize

        64KB

      • memory/2180-154-0x000002556BEC0000-0x000002556BED0000-memory.dmp

        Filesize

        64KB

      • memory/2180-2-0x00007FF9C7C00000-0x00007FF9C86C1000-memory.dmp

        Filesize

        10.8MB

      • memory/2256-100-0x0000029AC3570000-0x0000029AC3590000-memory.dmp

        Filesize

        128KB

      • memory/2256-103-0x0000029AC3980000-0x0000029AC39A0000-memory.dmp

        Filesize

        128KB

      • memory/2256-98-0x0000029AC35B0000-0x0000029AC35D0000-memory.dmp

        Filesize

        128KB

      • memory/2308-60-0x0000027A3C620000-0x0000027A3C640000-memory.dmp

        Filesize

        128KB

      • memory/2308-58-0x0000027A3C220000-0x0000027A3C240000-memory.dmp

        Filesize

        128KB

      • memory/2308-56-0x0000027A3C260000-0x0000027A3C280000-memory.dmp

        Filesize

        128KB

      • memory/2772-341-0x0000021445650000-0x0000021445670000-memory.dmp

        Filesize

        128KB

      • memory/2772-336-0x0000021445280000-0x00000214452A0000-memory.dmp

        Filesize

        128KB

      • memory/2772-339-0x0000021445240000-0x0000021445260000-memory.dmp

        Filesize

        128KB

      • memory/2952-44-0x000001DFAFD00000-0x000001DFAFD01000-memory.dmp

        Filesize

        4KB

      • memory/2952-38-0x000001DFAFD00000-0x000001DFAFD01000-memory.dmp

        Filesize

        4KB

      • memory/2952-36-0x000001DFAFD00000-0x000001DFAFD01000-memory.dmp

        Filesize

        4KB

      • memory/2952-37-0x000001DFAFD00000-0x000001DFAFD01000-memory.dmp

        Filesize

        4KB

      • memory/2952-42-0x000001DFAFD00000-0x000001DFAFD01000-memory.dmp

        Filesize

        4KB

      • memory/2952-43-0x000001DFAFD00000-0x000001DFAFD01000-memory.dmp

        Filesize

        4KB

      • memory/2952-46-0x000001DFAFD00000-0x000001DFAFD01000-memory.dmp

        Filesize

        4KB

      • memory/2952-45-0x000001DFAFD00000-0x000001DFAFD01000-memory.dmp

        Filesize

        4KB

      • memory/2952-48-0x000001DFAFD00000-0x000001DFAFD01000-memory.dmp

        Filesize

        4KB

      • memory/2952-47-0x000001DFAFD00000-0x000001DFAFD01000-memory.dmp

        Filesize

        4KB

      • memory/3104-253-0x000002F1A13D0000-0x000002F1A13F0000-memory.dmp

        Filesize

        128KB

      • memory/3104-257-0x000002F1A17A0000-0x000002F1A17C0000-memory.dmp

        Filesize

        128KB

      • memory/3104-255-0x000002F1A1390000-0x000002F1A13B0000-memory.dmp

        Filesize

        128KB

      • memory/3264-186-0x000002AB25170000-0x000002AB25190000-memory.dmp

        Filesize

        128KB

      • memory/3264-188-0x000002AB25580000-0x000002AB255A0000-memory.dmp

        Filesize

        128KB

      • memory/3264-184-0x000002AB251B0000-0x000002AB251D0000-memory.dmp

        Filesize

        128KB

      • memory/3616-378-0x00000227EDE80000-0x00000227EDEA0000-memory.dmp

        Filesize

        128KB

      • memory/3616-380-0x00000227EDE40000-0x00000227EDE60000-memory.dmp

        Filesize

        128KB

      • memory/3616-382-0x00000227EE250000-0x00000227EE270000-memory.dmp

        Filesize

        128KB

      • memory/3740-144-0x000001EE0F0A0000-0x000001EE0F0C0000-memory.dmp

        Filesize

        128KB

      • memory/3740-140-0x000001EE0EA90000-0x000001EE0EAB0000-memory.dmp

        Filesize

        128KB

      • memory/3740-142-0x000001EE0EA50000-0x000001EE0EA70000-memory.dmp

        Filesize

        128KB

      • memory/3852-296-0x0000021B4EE30000-0x0000021B4EE50000-memory.dmp

        Filesize

        128KB

      • memory/3852-292-0x0000021B4EA60000-0x0000021B4EA80000-memory.dmp

        Filesize

        128KB

      • memory/3852-294-0x0000021B4EA20000-0x0000021B4EA40000-memory.dmp

        Filesize

        128KB

      • memory/4064-15-0x0000000002F90000-0x0000000002F91000-memory.dmp

        Filesize

        4KB

      • memory/4448-357-0x000002A066F60000-0x000002A066F80000-memory.dmp

        Filesize

        128KB

      • memory/4448-363-0x000002A067370000-0x000002A067390000-memory.dmp

        Filesize

        128KB

      • memory/4448-360-0x000002A066F20000-0x000002A066F40000-memory.dmp

        Filesize

        128KB

      • memory/4476-316-0x00000189FCF50000-0x00000189FCF70000-memory.dmp

        Filesize

        128KB

      • memory/4476-318-0x00000189FD3A0000-0x00000189FD3C0000-memory.dmp

        Filesize

        128KB

      • memory/4476-313-0x00000189FCF90000-0x00000189FCFB0000-memory.dmp

        Filesize

        128KB

      • memory/4840-80-0x000002940AE60000-0x000002940AE80000-memory.dmp

        Filesize

        128KB

      • memory/4840-82-0x000002940B270000-0x000002940B290000-memory.dmp

        Filesize

        128KB

      • memory/4840-77-0x000002940AEA0000-0x000002940AEC0000-memory.dmp

        Filesize

        128KB

      • memory/5108-22-0x00000234CB940000-0x00000234CB960000-memory.dmp

        Filesize

        128KB

      • memory/5108-26-0x00000234CBD10000-0x00000234CBD30000-memory.dmp

        Filesize

        128KB

      • memory/5108-24-0x00000234CB900000-0x00000234CB920000-memory.dmp

        Filesize

        128KB