Analysis

  • max time kernel
    154s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 05:22

General

  • Target

    71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe

  • Size

    326KB

  • MD5

    71523d4ed0a8d827f80c6d2e9ec825e0

  • SHA1

    7b5d36ad61933ea1ecf0314879d54994c5075a41

  • SHA256

    28f1e799b00bed99d9777b6d48e7f20c9d2dd9386869ecea13ab68633600abfa

  • SHA512

    10f9834ecc6ae105ab5f9cc3a30960b7cabc6b68760c3ed3f1134df0329d4b7e4737b1400f56394ad162155055a08c07010a307e72d6a78e8fa3a6bf248b780b

  • SSDEEP

    3072:Ie2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:IsxD5cwohO+O1sVG0/pZ6iPC8

Malware Config

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • ModiLoader Second Stage 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • UPX packed file 19 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe
    "C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5076
    • C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe
      "C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2464
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KRVHF.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1780
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
          4⤵
          • Adds Run key to start application
          PID:1904
      • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3976
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:3360
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:3588
  • 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 --no-appcompat-clear --mojo-platform-channel-handle=3104 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4384

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\KRVHF.txt

      Filesize

      145B

      MD5

      4eb61ec7816c34ec8c125acadc57ec1b

      SHA1

      b0015cc865c0bb1a027be663027d3829401a31cc

      SHA256

      08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

      SHA512

      f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

    • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

      Filesize

      326KB

      MD5

      93307a8ca7644cd3ef83e305d1693ad8

      SHA1

      3ecf8e8bb3ae8c76ad2b96c8f81931ff723b8e83

      SHA256

      5266671d91a45df381edc79cd5726861a481117f634b1bffec573331eff9bc22

      SHA512

      831e4569d928f0862fab76436cf942f26efbb55e4bc28e0048fb53361c586b3388e1639198679691a6d39d0a49fac831eba29c5ac356133e99bc9cc8eb0c7ca3

    • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

      Filesize

      192KB

      MD5

      39410f0bf0691434d77c08916d029d46

      SHA1

      dd10575b15aa729fc7e220ba4969508487983978

      SHA256

      8d3a211c7053e62a669b291e4df3502f79142d57d9aa68d4bebe14436dd3a05d

      SHA512

      23d228013738309659d8d96f97e47b7af59ba95f106d5cd35be8e82d96b77ad05d7868efb8e5ed25c7170c3cf6386762ff39c7fda6c36de0c9382bc955d09b2f

    • memory/2464-55-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2464-38-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2464-9-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2464-10-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2464-7-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/3360-57-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/3588-54-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3588-52-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3588-58-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3588-53-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3588-51-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3588-44-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3976-34-0x0000000000400000-0x0000000000454000-memory.dmp

      Filesize

      336KB

    • memory/3976-49-0x0000000000400000-0x0000000000454000-memory.dmp

      Filesize

      336KB

    • memory/3976-39-0x0000000000400000-0x0000000000454000-memory.dmp

      Filesize

      336KB

    • memory/5076-5-0x0000000002A70000-0x0000000002A72000-memory.dmp

      Filesize

      8KB

    • memory/5076-6-0x0000000002A80000-0x0000000002A82000-memory.dmp

      Filesize

      8KB

    • memory/5076-0-0x0000000000400000-0x0000000000454000-memory.dmp

      Filesize

      336KB

    • memory/5076-4-0x0000000002A60000-0x0000000002A62000-memory.dmp

      Filesize

      8KB

    • memory/5076-13-0x0000000000400000-0x0000000000454000-memory.dmp

      Filesize

      336KB

    • memory/5076-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

      Filesize

      8KB