Analysis

  • max time kernel
    149s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07-05-2024 13:45

General

  • Target

    a99ac28401808fa033018d6986b63b90_NEAS.exe

  • Size

    90KB

  • MD5

    a99ac28401808fa033018d6986b63b90

  • SHA1

    9197a027c083dc643911d88c08ed0060675cc1b8

  • SHA256

    ba59878f82c80a6d90f304303a59389159f5c95e98920ef2f9d43b8585b3a7e7

  • SHA512

    46887ce43b29871ef59d97b999816631096b75bbd550c75b3aca091924a3ea4710600708420edc296a0862f7f74c08e5b682a10f72ca87efd91c4f606f0813d4

  • SSDEEP

    1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Malware Config

Signatures

  • ModiLoader, DBatLoader

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

  • ModiLoader Second Stage 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 26 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 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe
    "C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2256
    • C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe
      "C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:560
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\UIJEC.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2712
        • 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:2128
      • 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:1300
        • 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:920
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:2200

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\UIJEC.bat

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    2974260e7439d4f34a3a5d6ca048318a

    SHA1

    162324584fec9b4dd1a19ccf943a6944116b00e4

    SHA256

    305b141efe374d7b329cd257e3047f702c6406302f6b4e169273d74abfc3be47

    SHA512

    a3c5aed83093321fc94961ad133954d95257866a2c1a95fa4e41937b6e917d0b5f65a556e04bc72999c2ce2630ed0c6dd301cefebd68e80b777cda56e13277aa

  • memory/560-138-0x0000000002C60000-0x0000000002CB3000-memory.dmp

    Filesize

    332KB

  • memory/560-95-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/560-103-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/560-105-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/560-111-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/560-153-0x0000000002C60000-0x0000000002CB3000-memory.dmp

    Filesize

    332KB

  • memory/560-108-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/560-152-0x0000000002C60000-0x0000000002CB3000-memory.dmp

    Filesize

    332KB

  • memory/560-101-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/560-99-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/560-97-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/560-151-0x0000000002C60000-0x0000000002CB3000-memory.dmp

    Filesize

    332KB

  • memory/560-158-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/560-257-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/920-265-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1300-253-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1300-219-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1300-182-0x0000000000280000-0x0000000000281000-memory.dmp

    Filesize

    4KB

  • memory/1300-171-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/1300-155-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1300-161-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/2200-251-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2200-266-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2256-107-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2256-3-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2256-5-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2256-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

    Filesize

    4KB

  • memory/2256-25-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2256-85-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2256-93-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2256-61-0x0000000000360000-0x0000000000361000-memory.dmp

    Filesize

    4KB

  • memory/2256-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2256-71-0x0000000000390000-0x0000000000391000-memory.dmp

    Filesize

    4KB

  • memory/2256-79-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2256-80-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2256-81-0x00000000003B0000-0x00000000003B2000-memory.dmp

    Filesize

    8KB

  • memory/2256-83-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2256-84-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2256-54-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/2256-40-0x0000000000310000-0x0000000000311000-memory.dmp

    Filesize

    4KB

  • memory/2256-110-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2256-28-0x00000000002F0000-0x00000000002F1000-memory.dmp

    Filesize

    4KB