Analysis

  • max time kernel
    149s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    04-06-2024 02:17

General

  • Target

    bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe

  • Size

    326KB

  • MD5

    1b7f3191fcf1188240852a5af5df52df

  • SHA1

    402b3285afd77ec9499f349ec7365d7a1be9ef94

  • SHA256

    bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e

  • SHA512

    55ae4552585085f32a7a2439571129864f168254209736780a156930ccdfa2c037daa20130066d35ab0f95d13d5809c2c84e107cb850a6dca48bad43218c60aa

  • SSDEEP

    3072:Ie2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:IsxD5cwohO+O1sVG0/pZ6iPC8

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) 21 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\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
    "C:\Users\Admin\AppData\Local\Temp\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3000
    • C:\Users\Admin\AppData\Local\Temp\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe
      "C:\Users\Admin\AppData\Local\Temp\bd3e0f2e12974c5e662fbe148ee81ad45211589cb5a364590681cf4832598f9e.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2636
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\UTFOF.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2380
        • 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:328
      • 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:2360
        • 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:1660
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:1712

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\UTFOF.bat
    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    326KB

    MD5

    63c88a30b6345492fc3419e03ca1ccc4

    SHA1

    a282e7b6274387dbab4d2e753234e3dfaff97ae4

    SHA256

    ae1a5f7be023da23f19e2c64d18723a5c746a9b8656fc1b0894f57a4ca01d17c

    SHA512

    ef7d03c3015958a0ace3580ee3929639b6247ea80b06a589ba0e5bb731644601c1016a8f7b1e22c4608f71ce8a55dc2c15b6508e044b01a3f9d060fb1d6663ef

  • memory/1660-257-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1712-258-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/1712-242-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2360-243-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/2360-237-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/2360-164-0x0000000000260000-0x0000000000261000-memory.dmp
    Filesize

    4KB

  • memory/2360-175-0x0000000000310000-0x0000000000311000-memory.dmp
    Filesize

    4KB

  • memory/2360-183-0x0000000000330000-0x0000000000331000-memory.dmp
    Filesize

    4KB

  • memory/2360-154-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB

  • memory/2360-149-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/2636-105-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2636-147-0x0000000002960000-0x00000000029B4000-memory.dmp
    Filesize

    336KB

  • memory/2636-246-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2636-93-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2636-95-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2636-101-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2636-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2636-106-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2636-145-0x0000000002960000-0x00000000029B4000-memory.dmp
    Filesize

    336KB

  • memory/2636-104-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2636-146-0x0000000002960000-0x00000000029B4000-memory.dmp
    Filesize

    336KB

  • memory/2636-97-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/3000-88-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/3000-78-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/3000-91-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/3000-81-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/3000-103-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/3000-0-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/3000-77-0x0000000000404000-0x0000000000405000-memory.dmp
    Filesize

    4KB

  • memory/3000-79-0x00000000003E0000-0x00000000003E2000-memory.dmp
    Filesize

    8KB

  • memory/3000-69-0x00000000003B0000-0x00000000003B1000-memory.dmp
    Filesize

    4KB

  • memory/3000-59-0x0000000000350000-0x0000000000351000-memory.dmp
    Filesize

    4KB

  • memory/3000-39-0x0000000000310000-0x0000000000311000-memory.dmp
    Filesize

    4KB

  • memory/3000-27-0x0000000000270000-0x0000000000271000-memory.dmp
    Filesize

    4KB

  • memory/3000-15-0x0000000000250000-0x0000000000251000-memory.dmp
    Filesize

    4KB

  • memory/3000-92-0x0000000000710000-0x0000000000764000-memory.dmp
    Filesize

    336KB

  • memory/3000-5-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/3000-3-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB