Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    02-06-2024 04:41

General

  • Target

    f924aa58a22b7851a2c8f63e1b8dde04f6263661da655288f1a182463bcb9633.exe

  • Size

    90KB

  • MD5

    1fadb498c80f984ffcdaf55d673c37f0

  • SHA1

    bca0473b73f9ed2fce345e9cb1cdebc1b250e86d

  • SHA256

    f924aa58a22b7851a2c8f63e1b8dde04f6263661da655288f1a182463bcb9633

  • SHA512

    12d700c1602f28a287586b0c6a310075355e9bcfefa692cce88d7e4c5be6b5c259ec58964146d16cd619a2e192cc66d02d1755e54068253cdfd513941067284e

  • 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) 22 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 23 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\f924aa58a22b7851a2c8f63e1b8dde04f6263661da655288f1a182463bcb9633.exe
    "C:\Users\Admin\AppData\Local\Temp\f924aa58a22b7851a2c8f63e1b8dde04f6263661da655288f1a182463bcb9633.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:308
    • C:\Users\Admin\AppData\Local\Temp\f924aa58a22b7851a2c8f63e1b8dde04f6263661da655288f1a182463bcb9633.exe
      "C:\Users\Admin\AppData\Local\Temp\f924aa58a22b7851a2c8f63e1b8dde04f6263661da655288f1a182463bcb9633.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2576
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\OSECG.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:764
      • 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:1984
        • 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:1028
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    1fadb498c80f984ffcdaf55d673c37f0

    SHA1

    bca0473b73f9ed2fce345e9cb1cdebc1b250e86d

    SHA256

    f924aa58a22b7851a2c8f63e1b8dde04f6263661da655288f1a182463bcb9633

    SHA512

    12d700c1602f28a287586b0c6a310075355e9bcfefa692cce88d7e4c5be6b5c259ec58964146d16cd619a2e192cc66d02d1755e54068253cdfd513941067284e

  • memory/308-92-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/308-93-0x0000000002580000-0x00000000025D3000-memory.dmp

    Filesize

    332KB

  • memory/308-27-0x00000000003F0000-0x00000000003F1000-memory.dmp

    Filesize

    4KB

  • memory/308-39-0x0000000000470000-0x0000000000471000-memory.dmp

    Filesize

    4KB

  • memory/308-59-0x00000000004C0000-0x00000000004C1000-memory.dmp

    Filesize

    4KB

  • memory/308-78-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/308-82-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/308-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/308-89-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/308-15-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/308-80-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/308-79-0x0000000000500000-0x0000000000502000-memory.dmp

    Filesize

    8KB

  • memory/308-70-0x00000000004E0000-0x00000000004E1000-memory.dmp

    Filesize

    4KB

  • memory/308-62-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/308-104-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/308-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/308-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/580-245-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/580-260-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1028-259-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1984-150-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1984-249-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1984-167-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1984-177-0x0000000000300000-0x0000000000301000-memory.dmp

    Filesize

    4KB

  • memory/1984-165-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/1984-155-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2576-100-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2576-148-0x0000000003470000-0x00000000034C3000-memory.dmp

    Filesize

    332KB

  • memory/2576-106-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2576-108-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2576-111-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2576-107-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2576-102-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2576-98-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2576-254-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2576-94-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2576-96-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB