Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    10-06-2024 12:32

General

  • Target

    5b2492cdd814cd4ad2ad0f7d32433b314cc153c3e5db0787262e2fd5ecb9650d.exe

  • Size

    90KB

  • MD5

    af177146ef049d52898fc75ffe431d2f

  • SHA1

    a650aa61a2d02d7da038f64c93241f28c9f2e263

  • SHA256

    5b2492cdd814cd4ad2ad0f7d32433b314cc153c3e5db0787262e2fd5ecb9650d

  • SHA512

    46725ae60f246efd01aacaac2b4899f83598d29a46da570c8e39d6d5026141c6905030ee9a41ef2a0faceff4a9f4d78e6fce5d1993b472d3ae90e58bb1264eb3

  • 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.

  • Detects Windows executables referencing non-Windows User-Agents 1 IoCs
  • ModiLoader Second Stage 1 IoCs
  • UPX dump on OEP (original entry point) 20 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 22 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\5b2492cdd814cd4ad2ad0f7d32433b314cc153c3e5db0787262e2fd5ecb9650d.exe
    "C:\Users\Admin\AppData\Local\Temp\5b2492cdd814cd4ad2ad0f7d32433b314cc153c3e5db0787262e2fd5ecb9650d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Users\Admin\AppData\Local\Temp\5b2492cdd814cd4ad2ad0f7d32433b314cc153c3e5db0787262e2fd5ecb9650d.exe
      "C:\Users\Admin\AppData\Local\Temp\5b2492cdd814cd4ad2ad0f7d32433b314cc153c3e5db0787262e2fd5ecb9650d.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2856
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\PUFDH.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1932
        • 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:2240
      • 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:1056
        • 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:2532
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:2504

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\PUFDH.bat
    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

  • \Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    Filesize

    90KB

    MD5

    e7de918b79dfaaf382b1d4d51ffb45e6

    SHA1

    dfa61f5d9e1935ec61701f78879c82e41bac3115

    SHA256

    2a8777084b5063ad5ebb8c83b7a5e1d0303bf54d4b0840eac08e823a199f8d65

    SHA512

    7ef0fe46e763d8eff420b098501cda7a740ecc259d78d8d915ba03648582d67ba8eeb5042120595f80b3ff67101bf214157769de60bb9d1eed465701fb91adcd

  • memory/1056-248-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/1056-157-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/1056-178-0x0000000000280000-0x0000000000281000-memory.dmp
    Filesize

    4KB

  • memory/1056-167-0x0000000000250000-0x0000000000251000-memory.dmp
    Filesize

    4KB

  • memory/1056-231-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/1056-152-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2504-263-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2504-251-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2532-262-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2764-250-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2764-69-0x0000000000390000-0x0000000000391000-memory.dmp
    Filesize

    4KB

  • memory/2764-86-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2764-81-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2764-80-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2764-78-0x00000000003B0000-0x00000000003B2000-memory.dmp
    Filesize

    8KB

  • memory/2764-77-0x0000000000404000-0x0000000000405000-memory.dmp
    Filesize

    4KB

  • memory/2764-0-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2764-59-0x0000000000360000-0x0000000000361000-memory.dmp
    Filesize

    4KB

  • memory/2764-39-0x0000000000320000-0x0000000000321000-memory.dmp
    Filesize

    4KB

  • memory/2764-102-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2764-91-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2764-27-0x0000000000300000-0x0000000000301000-memory.dmp
    Filesize

    4KB

  • memory/2764-5-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB

  • memory/2764-15-0x0000000000260000-0x0000000000261000-memory.dmp
    Filesize

    4KB

  • memory/2764-3-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB

  • memory/2856-104-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2856-147-0x0000000003280000-0x00000000032D3000-memory.dmp
    Filesize

    332KB

  • memory/2856-146-0x0000000003280000-0x00000000032D3000-memory.dmp
    Filesize

    332KB

  • memory/2856-150-0x0000000003280000-0x00000000032D3000-memory.dmp
    Filesize

    332KB

  • memory/2856-148-0x0000000003280000-0x00000000032D3000-memory.dmp
    Filesize

    332KB

  • memory/2856-149-0x0000000003280000-0x00000000032D3000-memory.dmp
    Filesize

    332KB

  • memory/2856-109-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2856-106-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2856-254-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2856-105-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2856-92-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2856-94-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2856-96-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2856-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2856-100-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB