Analysis

  • max time kernel
    149s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    31-05-2024 02:48

General

  • Target

    c746e7c247eee784dcf1dbd2fff1f7ad60b690d9bdc44f817c8c283345170e65.exe

  • Size

    326KB

  • MD5

    931e880ae29b28a423844c1326add676

  • SHA1

    39a01c428f0b758a60cbb303718c73cab06ad823

  • SHA256

    c746e7c247eee784dcf1dbd2fff1f7ad60b690d9bdc44f817c8c283345170e65

  • SHA512

    fc750c6689c3c894cdef1d35d05e512417c81c62b058e5534b1d61947425bf3d65c5578a9bb4c861f0a883ec5a6d89be00e9a8e803f16d150e35760d6e6f7081

  • 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 2 IoCs
  • ModiLoader Second Stage 2 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\c746e7c247eee784dcf1dbd2fff1f7ad60b690d9bdc44f817c8c283345170e65.exe
    "C:\Users\Admin\AppData\Local\Temp\c746e7c247eee784dcf1dbd2fff1f7ad60b690d9bdc44f817c8c283345170e65.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2364
    • C:\Users\Admin\AppData\Local\Temp\c746e7c247eee784dcf1dbd2fff1f7ad60b690d9bdc44f817c8c283345170e65.exe
      "C:\Users\Admin\AppData\Local\Temp\c746e7c247eee784dcf1dbd2fff1f7ad60b690d9bdc44f817c8c283345170e65.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2456
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\PBDGR.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1976
        • 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:2816
      • 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:784
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:1104

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\PBDGR.bat
    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    326KB

    MD5

    ad73d69ceefeaa595885e83c4d88f541

    SHA1

    4ecfb1c0d2dd28190d13fe0d1dafc0fde9dc92c5

    SHA256

    30287d012ee019dd76d17af3ce463f9dc63c599a4f21aa41730411c3f0af6666

    SHA512

    42caa2a1c351b9790ded5e4729e4ed160365991fcf44a4556875574d85c0b7168247190439354bb81b405d869eeedeba97a9b402220eeab76bbe5d9fd798c3c1

  • memory/784-259-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/784-248-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1104-260-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/1104-249-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/1984-219-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/1984-176-0x00000000002C0000-0x00000000002C1000-memory.dmp
    Filesize

    4KB

  • memory/1984-184-0x00000000002E0000-0x00000000002E1000-memory.dmp
    Filesize

    4KB

  • memory/1984-165-0x0000000000250000-0x0000000000251000-memory.dmp
    Filesize

    4KB

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

    4KB

  • memory/1984-152-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/1984-250-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/2364-27-0x00000000002F0000-0x00000000002F1000-memory.dmp
    Filesize

    4KB

  • memory/2364-95-0x0000000001E00000-0x0000000001E54000-memory.dmp
    Filesize

    336KB

  • memory/2364-3-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/2364-5-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/2364-15-0x00000000002D0000-0x00000000002D1000-memory.dmp
    Filesize

    4KB

  • memory/2364-39-0x0000000000310000-0x0000000000311000-memory.dmp
    Filesize

    4KB

  • memory/2364-102-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/2364-88-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/2364-87-0x0000000000404000-0x0000000000405000-memory.dmp
    Filesize

    4KB

  • memory/2364-77-0x00000000003E0000-0x00000000003E2000-memory.dmp
    Filesize

    8KB

  • memory/2364-69-0x0000000000370000-0x0000000000371000-memory.dmp
    Filesize

    4KB

  • memory/2364-59-0x0000000000350000-0x0000000000351000-memory.dmp
    Filesize

    4KB

  • memory/2364-0-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/2456-100-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2456-91-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2456-145-0x00000000025E0000-0x0000000002634000-memory.dmp
    Filesize

    336KB

  • memory/2456-144-0x00000000025E0000-0x0000000002634000-memory.dmp
    Filesize

    336KB

  • memory/2456-147-0x00000000025E0000-0x0000000002634000-memory.dmp
    Filesize

    336KB

  • memory/2456-148-0x00000000025E0000-0x0000000002634000-memory.dmp
    Filesize

    336KB

  • memory/2456-93-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2456-146-0x00000000025E0000-0x0000000002634000-memory.dmp
    Filesize

    336KB

  • memory/2456-107-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2456-89-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2456-101-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2456-254-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2456-103-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2456-104-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2456-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2456-98-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB