Analysis

  • max time kernel
    118s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 6 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 8 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
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2736
      • 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:2696

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\satornas.dll

          Filesize

          183B

          MD5

          bef366bad44b4f4ed1e0d773183ec6e3

          SHA1

          bfe0a20dc4d44eb3ff9c7c0a20f16ea8f6c4be66

          SHA256

          632b9e7703860078fae54dc4e4cb3c78534760fd796d1f2dc9d68fd48315bddb

          SHA512

          f17f0ac1f73643f2315cae7d7bd1fd225dd0addf4576cbd8ef8c4d653a090e034301d67784283ba030694a81fc79434a4e791048b9f5dc98d40433d7bd74fb8f

        • \Windows\SysWOW64\ctfmen.exe

          Filesize

          4KB

          MD5

          9db78d34819b83db83e5d2b384252719

          SHA1

          c67a325ff7c961a5f147990a054b747a0efb3c1f

          SHA256

          3857b169bb99da93a209e0e594d03605bb387bc8bdfe9451e4ef10b9728af5d2

          SHA512

          d9c7c7fff67d4ee6f9b00056ccd3bd02b4d5c58389b581b52df2e0115563f1bec74c0bef9bbe4facf63176c2c0c9929b07bc408899dd0502c29fe6c236ed31f9

        • \Windows\SysWOW64\shervans.dll

          Filesize

          8KB

          MD5

          6dcd6fc0523c6cac97358ce31cf8cbb0

          SHA1

          f7c7996aca9ae017482f200acc7bed7d23822013

          SHA256

          76121fb892d2e5b155a8a59b3421134da83bef558751e0725ced6c22fc1da978

          SHA512

          5d344ec8f016c16d97eba2f203324aad342fd1bfdc99e1d15b13617aa7b80e8e09d4d8f25f885dbc6458bc8562d64d5911f62fe30ddc6989bf490f7675406710

        • \Windows\SysWOW64\smnss.exe

          Filesize

          119KB

          MD5

          46c8f80ead86ca086b5f6e3b6635788c

          SHA1

          a91d1b0b524360efbf9fc0af65921f5d5a484659

          SHA256

          6af74209347c94367b3bb0aa6633cca4975ba1c5e6c7209ed6f0367e484775ac

          SHA512

          45a0af89297d65b1aa429470dd3b93baa7506abaf8c1b3e7cdc8d71994ec2e9a1c08e6ebdf834ad849462226e433981982990f227a7668195da0fa1904da8d98

        • memory/2512-18-0x0000000000390000-0x0000000000399000-memory.dmp

          Filesize

          36KB

        • memory/2512-27-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/2512-26-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/2512-0-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/2512-12-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/2696-35-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/2696-43-0x0000000000400000-0x0000000000420000-memory.dmp

          Filesize

          128KB

        • memory/2696-44-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/2736-28-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2736-33-0x00000000003C0000-0x00000000003E0000-memory.dmp

          Filesize

          128KB

        • memory/2736-42-0x00000000003C0000-0x00000000003E0000-memory.dmp

          Filesize

          128KB