Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-08-2024 18:14

General

  • Target

    FalconV1.7/Falcon.exe

  • Size

    2.1MB

  • MD5

    005e76ae2d3af2cc2a001745d5e0afd9

  • SHA1

    fa117b48f316b38db20887ba9b0138a07d686064

  • SHA256

    a427b998ac966b5f8a4ec510205b075cfe7eaa102ac1d9e1ac0182a54cb33d2c

  • SHA512

    2e5bb3e7d95230c012014184bb29ddbd56328fc8d63738ebf50923d5e86461d2f2511c32ca930d23eeec81b4a0d4ad54a4be0c782dfe01904a276a74636a1e8b

  • SSDEEP

    49152:ftBEvg4rSx4YYKOvp+QoqkxR/NPmmRFyxGFrEN0FN63lSY:fQvg4G6YDxQoqkxBNPXmUylD

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

23.105.131.195:49645

Attributes
  • communication_password

    81dc9bdb52d04dc20036dbd8313ed055

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 1 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FalconV1.7\Falcon.exe
    "C:\Users\Admin\AppData\Local\Temp\FalconV1.7\Falcon.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1512
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Lvzjypcn.vbs"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:7084
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\Ntuser.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:6292
    • C:\Users\Admin\AppData\Local\Temp\Falcon.exe
      C:\Users\Admin\AppData\Local\Temp\Falcon.exe
      2⤵
      • Executes dropped EXE
      PID:6324
    • C:\Users\Admin\AppData\Local\Temp\Falcon.exe
      C:\Users\Admin\AppData\Local\Temp\Falcon.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:6252
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3808,i,4174666705242427184,7333705955694532165,262144 --variations-seed-version --mojo-platform-channel-handle=4224 /prefetch:8
    1⤵
      PID:1168

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Falcon.exe

      Filesize

      2.1MB

      MD5

      005e76ae2d3af2cc2a001745d5e0afd9

      SHA1

      fa117b48f316b38db20887ba9b0138a07d686064

      SHA256

      a427b998ac966b5f8a4ec510205b075cfe7eaa102ac1d9e1ac0182a54cb33d2c

      SHA512

      2e5bb3e7d95230c012014184bb29ddbd56328fc8d63738ebf50923d5e86461d2f2511c32ca930d23eeec81b4a0d4ad54a4be0c782dfe01904a276a74636a1e8b

    • C:\Users\Admin\AppData\Local\Temp\_Lvzjypcn.vbs

      Filesize

      136B

      MD5

      24131be6e84c424a31423a9daa683b01

      SHA1

      38ae56938aa4fd963f066287b4190c929388e074

      SHA256

      1fe2a89a827cbe4ef046ca27f4d38c1ef1fbe889901f3946a4b7e1d4005cbde7

      SHA512

      5e0cb79ec9ed8836570393060e0b0f55b1a1a0446922e988913ed4ea4d67567a3a04e7d3a77c73dce596bd0eae530d07f0d2cf0f9cdf6b96001e1737d158704f

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_johtdik4.qkm.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1512-45-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-10-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-2-0x00000000058C0000-0x0000000005E64000-memory.dmp

      Filesize

      5.6MB

    • memory/1512-3-0x00000000053B0000-0x0000000005442000-memory.dmp

      Filesize

      584KB

    • memory/1512-4-0x0000000005360000-0x000000000536A000-memory.dmp

      Filesize

      40KB

    • memory/1512-5-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1512-6-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

      Filesize

      4KB

    • memory/1512-7-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1512-8-0x0000000006C60000-0x0000000006E6A000-memory.dmp

      Filesize

      2.0MB

    • memory/1512-9-0x0000000004CC0000-0x0000000004D2A000-memory.dmp

      Filesize

      424KB

    • memory/1512-27-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-25-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-23-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-21-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-19-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-17-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-15-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-13-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-47-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-11-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-29-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-39-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-73-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-71-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-69-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-67-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-65-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-63-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-61-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-59-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-57-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-55-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-53-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-51-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-49-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

      Filesize

      4KB

    • memory/1512-41-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-1-0x0000000000730000-0x000000000094C000-memory.dmp

      Filesize

      2.1MB

    • memory/1512-43-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-37-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-35-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-33-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-31-0x0000000004CC0000-0x0000000004D23000-memory.dmp

      Filesize

      396KB

    • memory/1512-1839-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/6252-1897-0x0000000070470000-0x00000000704A9000-memory.dmp

      Filesize

      228KB

    • memory/6252-1838-0x0000000000400000-0x00000000007CE000-memory.dmp

      Filesize

      3.8MB

    • memory/6252-1902-0x00000000752D0000-0x0000000075309000-memory.dmp

      Filesize

      228KB

    • memory/6252-1901-0x00000000752D0000-0x0000000075309000-memory.dmp

      Filesize

      228KB

    • memory/6252-1898-0x0000000070140000-0x0000000070179000-memory.dmp

      Filesize

      228KB

    • memory/6252-1896-0x00000000752D0000-0x0000000075309000-memory.dmp

      Filesize

      228KB

    • memory/6252-1893-0x00000000752D0000-0x0000000075309000-memory.dmp

      Filesize

      228KB

    • memory/6252-1890-0x0000000000400000-0x00000000007CE000-memory.dmp

      Filesize

      3.8MB

    • memory/6252-1858-0x0000000070470000-0x00000000704A9000-memory.dmp

      Filesize

      228KB

    • memory/6292-1880-0x0000000007720000-0x000000000773A000-memory.dmp

      Filesize

      104KB

    • memory/6292-1885-0x0000000007960000-0x0000000007974000-memory.dmp

      Filesize

      80KB

    • memory/6292-1867-0x00000000708B0000-0x00000000708FC000-memory.dmp

      Filesize

      304KB

    • memory/6292-1877-0x0000000006A10000-0x0000000006A2E000-memory.dmp

      Filesize

      120KB

    • memory/6292-1878-0x0000000007600000-0x00000000076A3000-memory.dmp

      Filesize

      652KB

    • memory/6292-1879-0x0000000007D70000-0x00000000083EA000-memory.dmp

      Filesize

      6.5MB

    • memory/6292-1855-0x0000000006400000-0x000000000641E000-memory.dmp

      Filesize

      120KB

    • memory/6292-1881-0x0000000007780000-0x000000000778A000-memory.dmp

      Filesize

      40KB

    • memory/6292-1882-0x00000000079B0000-0x0000000007A46000-memory.dmp

      Filesize

      600KB

    • memory/6292-1883-0x0000000007920000-0x0000000007931000-memory.dmp

      Filesize

      68KB

    • memory/6292-1884-0x0000000007950000-0x000000000795E000-memory.dmp

      Filesize

      56KB

    • memory/6292-1856-0x0000000006440000-0x000000000648C000-memory.dmp

      Filesize

      304KB

    • memory/6292-1886-0x0000000007A70000-0x0000000007A8A000-memory.dmp

      Filesize

      104KB

    • memory/6292-1887-0x00000000079A0000-0x00000000079A8000-memory.dmp

      Filesize

      32KB

    • memory/6292-1854-0x0000000005DE0000-0x0000000006134000-memory.dmp

      Filesize

      3.3MB

    • memory/6292-1843-0x0000000005D00000-0x0000000005D66000-memory.dmp

      Filesize

      408KB

    • memory/6292-1844-0x0000000005D70000-0x0000000005DD6000-memory.dmp

      Filesize

      408KB

    • memory/6292-1866-0x00000000069D0000-0x0000000006A02000-memory.dmp

      Filesize

      200KB

    • memory/6292-1842-0x0000000005C60000-0x0000000005C82000-memory.dmp

      Filesize

      136KB

    • memory/6292-1841-0x00000000055F0000-0x0000000005C18000-memory.dmp

      Filesize

      6.2MB

    • memory/6292-1840-0x0000000002AC0000-0x0000000002AF6000-memory.dmp

      Filesize

      216KB