Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    15/01/2025, 11:05

General

  • Target

    fdec5525ca085abce3eff98ebc4d70534d90586a36efc11e320c41f789d14aaa.exe

  • Size

    90KB

  • MD5

    23c3e2ff7eae426028bcf42256c51d9a

  • SHA1

    b0a876af924ecb0d4bcffdbb909271ae8b9459dc

  • SHA256

    fdec5525ca085abce3eff98ebc4d70534d90586a36efc11e320c41f789d14aaa

  • SHA512

    ec4c628b6e3f7d9c3ef8d97dd0748ef82fa8cf23e547895fa85f380cc308148c1015378da4c2cd0bad18eb40e798b777ec4856007d2f06810e6dd6b63d741986

  • 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 family
  • ModiLoader Second Stage 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 24 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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\fdec5525ca085abce3eff98ebc4d70534d90586a36efc11e320c41f789d14aaa.exe
    "C:\Users\Admin\AppData\Local\Temp\fdec5525ca085abce3eff98ebc4d70534d90586a36efc11e320c41f789d14aaa.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Users\Admin\AppData\Local\Temp\fdec5525ca085abce3eff98ebc4d70534d90586a36efc11e320c41f789d14aaa.exe
      "C:\Users\Admin\AppData\Local\Temp\fdec5525ca085abce3eff98ebc4d70534d90586a36efc11e320c41f789d14aaa.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2628
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\AVSRV.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1216
        • 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
          • System Location Discovery: System Language Discovery
          PID:1124
      • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2356
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:864
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:1452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    16a980a0fa18ba88b70e1e4cf8bf20f7

    SHA1

    85f7a4226142bd34a42b40575fad305400bfbdd6

    SHA256

    3fb4da4b81ec5191dd233f83eb6637d702abb23a44e6d8976d2a4bcd207e2fea

    SHA512

    63477c74bbb0e8ba253d9ab4cf78ba0cf863fef2b61109b72f0148d814c3d9d6cdcb620deacde487dc618b83be43eb929bd4e0f5208b15217807e0dff28d73a6

  • memory/864-262-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/864-255-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1452-263-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1452-256-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2356-258-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2356-169-0x0000000000310000-0x0000000000311000-memory.dmp

    Filesize

    4KB

  • memory/2356-214-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2356-180-0x0000000000380000-0x0000000000381000-memory.dmp

    Filesize

    4KB

  • memory/2356-159-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2628-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2628-261-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2628-253-0x00000000030F0000-0x0000000003143000-memory.dmp

    Filesize

    332KB

  • memory/2628-254-0x00000000030F0000-0x0000000003143000-memory.dmp

    Filesize

    332KB

  • memory/2628-110-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2628-156-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2628-107-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2628-138-0x00000000030F0000-0x0000000003143000-memory.dmp

    Filesize

    332KB

  • memory/2628-105-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2628-151-0x00000000030F0000-0x0000000003143000-memory.dmp

    Filesize

    332KB

  • memory/2628-103-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2628-152-0x00000000030F0000-0x0000000003143000-memory.dmp

    Filesize

    332KB

  • memory/2628-97-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2628-95-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2628-93-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3024-80-0x00000000003F0000-0x00000000003F2000-memory.dmp

    Filesize

    8KB

  • memory/3024-29-0x0000000000280000-0x0000000000281000-memory.dmp

    Filesize

    4KB

  • memory/3024-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3024-104-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3024-106-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3024-109-0x00000000027A0000-0x00000000027F3000-memory.dmp

    Filesize

    332KB

  • memory/3024-71-0x00000000003D0000-0x00000000003D1000-memory.dmp

    Filesize

    4KB

  • memory/3024-79-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3024-61-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB

  • memory/3024-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

    Filesize

    4KB

  • memory/3024-82-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3024-86-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3024-92-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3024-5-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/3024-25-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/3024-26-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3024-15-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/3024-3-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB