Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/07/2024, 11:22

General

  • Target

    c8112a051139c7b288db93f9c3d44500N.exe

  • Size

    119KB

  • MD5

    c8112a051139c7b288db93f9c3d44500

  • SHA1

    dca8def485a3ed0203eb88c3d4ae6fd5c3fbac42

  • SHA256

    920129f0efad201bee622c71acc32aac38d25ed3fe90ffa54b1c522248cb909b

  • SHA512

    861a5a8ea79c9ad0fe35646a71f2d2df41ff0109c402047ff69534110f0e39bcecc35127b025527e2c03d025e0b40d8f93799ac424bcb45a5e94bf5fb6919906

  • SSDEEP

    3072:KOjWuyt0ZsqsXOKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPPh:KIs9OKofHfHTXQLzgvnzHPowYbvrjD/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 2 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\c8112a051139c7b288db93f9c3d44500N.exe
    "C:\Users\Admin\AppData\Local\Temp\c8112a051139c7b288db93f9c3d44500N.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:3120
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4656
      • 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:1060

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\ctfmen.exe

          Filesize

          4KB

          MD5

          e2fdbc3f0578d58be8a671b66b4951d1

          SHA1

          6811bd3f84a5185477bf6140b15964eef1cea3e0

          SHA256

          3bd117f2dc2a1b25c839c5ee4bc4ab2e42d5b68c0dfec77ff062c06d614f5ec7

          SHA512

          4236a4cec4ed4dfae5440e37168bab8904d10625608bdc81b701720b6f2c9e962ee067fd52a2780d8602fae2272462a8aac49ce2a925cad2985257ba312e4dc1

        • C:\Windows\SysWOW64\grcopy.dll

          Filesize

          119KB

          MD5

          898a8c85d728fe029408ed68d5aae455

          SHA1

          e3799afabc16b59a344654e46d8ab65c3b791a13

          SHA256

          a2695365f0a9403b2f60c68d1b0eb88904a977c9d2eb922640980d8690bd72b0

          SHA512

          0b5f8490e3c1ec6cedb99d215f508eb2e8d6ce707b98b57a518299db59d96079ed5be60ecaa48865d96a4be4a6331e85518cf6a73fa91a0dfee09fee443d40c7

        • C:\Windows\SysWOW64\satornas.dll

          Filesize

          183B

          MD5

          32ecdcfb45478e6085cddf0a4f8d4fcb

          SHA1

          3e26bf82900c445737d765b0fab19bbaad1f677b

          SHA256

          d53b3f58f9c688e343eb525f8f235d66d6132f5a7a11ca0e923b0a0a98adedb7

          SHA512

          fa28b54f58504a22fcd55ae201d8ae41d46b026b30b44d243b83afb65c4fa982e8ed70c2c06df930b8464e35eaca3f3090e125251db08074d09277194838031d

        • C:\Windows\SysWOW64\shervans.dll

          Filesize

          8KB

          MD5

          ae17f51fda05aff679743f82e94ccaad

          SHA1

          2b0b5e6fd13d5a97e8a79d90735998596199ce02

          SHA256

          b020e81d8114fd09ccb707911c5fa1aa5023bb194461cc2a427f7e655b3bbdec

          SHA512

          9762f89dc29e722efdb9abf2c2cb6931dc97a98236adc46d799ec72afc70d99d23290b27ee13fa02ef5188c7f5c797c162b87aa8eb3afe5a7a4c601cefd02ca8

        • memory/1060-29-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/1060-37-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/1060-40-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/3120-0-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/3120-13-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/3120-22-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/3120-23-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/4656-25-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB