Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/01/2025, 12:17

General

  • Target

    5f81ec170d15e9941ee1c047592fd9e938d26b043b566bc38a733ffaa4887c42N.exe

  • Size

    119KB

  • MD5

    cf74a2aa66d93710cbc26863bc562ee0

  • SHA1

    01c5ca3e14178e4a5e7eacb6c942a6dfb5f992af

  • SHA256

    5f81ec170d15e9941ee1c047592fd9e938d26b043b566bc38a733ffaa4887c42

  • SHA512

    08fbc97c276d2d14106e0a5014b8b496da7a15728d75044b3b61617e50205573402e9aeae0559121dd24492b482b4ec8c699f2dc32321e3fd02253cc60df2f46

  • SSDEEP

    3072:6OjWuyt0ZsqsXOKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPPh:6Is9OKofHfHTXQLzgvnzHPowYbvrjD/E

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 19 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Maps connected drives based on registry 3 TTPs 6 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f81ec170d15e9941ee1c047592fd9e938d26b043b566bc38a733ffaa4887c42N.exe
    "C:\Users\Admin\AppData\Local\Temp\5f81ec170d15e9941ee1c047592fd9e938d26b043b566bc38a733ffaa4887c42N.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4720
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3652
      • C:\Windows\SysWOW64\smnss.exe
        C:\Windows\system32\smnss.exe
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Enumerates connected drives
        • Maps connected drives based on registry
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:4136

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\ctfmen.exe

          Filesize

          4KB

          MD5

          2046a082a2ad3694d30ff642f4579519

          SHA1

          5323d6bea184082a0600043e28e98ea942f6d6da

          SHA256

          6aa1edbfc87023c05c0c41d83c834ccd1af52a06026173a1c116db8538700bbe

          SHA512

          2bfc80b7a78dbd0c1e2108efd5fbb4ac03bf0dcdfa0fe676e49f25226735f4ecc578033b75a980c2452d9740dc6a2af7b6d79ea6faaccbafdd4746e3017237c1

        • C:\Windows\SysWOW64\grcopy.dll

          Filesize

          119KB

          MD5

          12319e50e0f0a2167aaec490f11c8018

          SHA1

          05c9f1a55c68f5bdae44dbdc1512ef870f57cee4

          SHA256

          90a34bb4e51acd7de34fd1e9eaf3443a5c868f22ba44706b572f4eae6cd3d01a

          SHA512

          520d1e1f901669a53916f226c657823a0d34868092cbddcaac9150d14616fa05245fa7aa7397fd564fdfcff45834edcb4fffe4b37d963fbdea9db6ca19808b01

        • C:\Windows\SysWOW64\satornas.dll

          Filesize

          183B

          MD5

          8d9af7c45b0e474443d169e388620deb

          SHA1

          f58e564cfb122553943e3cbf23eae23df3d0f056

          SHA256

          c6c36e3ab33460a4f27ee692dc8173d08f75c93c0116b388d4bc7abe16006fdf

          SHA512

          96e279cd9be4524fd311f49676e2cc2c52453bd1236b362fb058e11ac35cb274f447fd87cc882272b28272a3f4473e2598833259eaa7589a9934576dac53bac6

        • C:\Windows\SysWOW64\shervans.dll

          Filesize

          8KB

          MD5

          7b0d794ce17184009b7cf18016d2f0f8

          SHA1

          49849e4ecc3694a5fda2d803812c348602ff2d6b

          SHA256

          434e0afec071bb55809afb7d0ca8e71f04649f2f2563813b0e3732ba1e79920e

          SHA512

          53d4731dcefa9a4f7d00ed69efcaae67f6b9791939473235a5f2bd4805d49c8488e1b6bb4737bf28db500b593c2ed7bf8c8e97a56c6071bce4c27b9e6d7dff9f

        • memory/3652-25-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/4136-36-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/4136-30-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/4136-38-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/4136-39-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/4720-23-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/4720-24-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/4720-0-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/4720-12-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB