Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09-06-2024 00:06

General

  • Target

    58aedb4314582084caf0e716936400482c50e0837b77672c563fc9d9531150aa.exe

  • Size

    90KB

  • MD5

    7635c23838f82efad04d629ea8dec6b8

  • SHA1

    349a49d0d2522fcc1c901a014075f2b0e354a6cb

  • SHA256

    58aedb4314582084caf0e716936400482c50e0837b77672c563fc9d9531150aa

  • SHA512

    53b71780b7d2a9e01a79d8e2b24c433c7394fdd186778b9d29f1771cf0dd51d19909e49a6dff3dedfd84876d9830641ddaaa4e6f71853ac3d3e2bc80159a0e0c

  • 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) 19 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 20 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\58aedb4314582084caf0e716936400482c50e0837b77672c563fc9d9531150aa.exe
    "C:\Users\Admin\AppData\Local\Temp\58aedb4314582084caf0e716936400482c50e0837b77672c563fc9d9531150aa.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Users\Admin\AppData\Local\Temp\58aedb4314582084caf0e716936400482c50e0837b77672c563fc9d9531150aa.exe
      "C:\Users\Admin\AppData\Local\Temp\58aedb4314582084caf0e716936400482c50e0837b77672c563fc9d9531150aa.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2112
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\QVHFJ.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2748
        • 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:1496
      • 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:1960
        • 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:1444
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:2764

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    90KB

    MD5

    18f66b25a5da359d52fb1b2e997673a8

    SHA1

    369b59855c72257201e8780765cfcb89b32901e6

    SHA256

    a4ebf5b4502505d2e810d67445f6850534ee79ce22ce0030b22fe59838cc4846

    SHA512

    2804fec834fbf6137e89cb9738cd299ebb9fc59fe0921253ff5e83a4008c872ae2921499f8f0aa5300bfef869bf6f4a8446f0fe055fe7b5c55cdbec2fe05162e

  • memory/1444-258-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1444-237-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1960-154-0x0000000000270000-0x0000000000271000-memory.dmp
    Filesize

    4KB

  • memory/1960-236-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/1960-148-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/1960-244-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/1960-163-0x0000000000290000-0x0000000000291000-memory.dmp
    Filesize

    4KB

  • memory/1960-174-0x00000000002B0000-0x00000000002B1000-memory.dmp
    Filesize

    4KB

  • memory/2112-104-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2112-146-0x0000000003450000-0x00000000034A3000-memory.dmp
    Filesize

    332KB

  • memory/2112-147-0x0000000003450000-0x00000000034A3000-memory.dmp
    Filesize

    332KB

  • memory/2112-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2112-253-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2112-103-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2112-102-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2112-99-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2112-95-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2112-93-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2112-91-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2764-245-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2764-259-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2992-90-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2992-101-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2992-105-0x00000000004B0000-0x0000000000503000-memory.dmp
    Filesize

    332KB

  • memory/2992-77-0x0000000000404000-0x0000000000405000-memory.dmp
    Filesize

    4KB

  • memory/2992-78-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2992-81-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2992-0-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2992-79-0x00000000003A0000-0x00000000003A2000-memory.dmp
    Filesize

    8KB

  • memory/2992-69-0x0000000000380000-0x0000000000381000-memory.dmp
    Filesize

    4KB

  • memory/2992-59-0x0000000000360000-0x0000000000361000-memory.dmp
    Filesize

    4KB

  • memory/2992-39-0x00000000002A0000-0x00000000002A1000-memory.dmp
    Filesize

    4KB

  • memory/2992-27-0x0000000000280000-0x0000000000281000-memory.dmp
    Filesize

    4KB

  • memory/2992-15-0x0000000000250000-0x0000000000251000-memory.dmp
    Filesize

    4KB

  • memory/2992-5-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/2992-3-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB