Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    08/11/2024, 13:25

General

  • Target

    f799f0e3e91fcacf2227083e2611601956f171328a3e51a21c2e5f21e4671cc8N.exe

  • Size

    118KB

  • MD5

    68b5b0585cb65eed81b44d2b6c22ffa0

  • SHA1

    919000a0178b8324bd365434ec3a4fece9a039a7

  • SHA256

    f799f0e3e91fcacf2227083e2611601956f171328a3e51a21c2e5f21e4671cc8

  • SHA512

    e95a959ec962cdfb83651a46d45f724fce3264e0c9c06bc67c50237a42d11bf97dd2b0ac813b978ab8300abf7898ce0c370550b14d7c663c707428c763643c10

  • SSDEEP

    3072:WOjWuyt0ZsqsXOKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPPb:WIs9OKofHfHTXQLzgvnzHPowYbvrjD/m

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\f799f0e3e91fcacf2227083e2611601956f171328a3e51a21c2e5f21e4671cc8N.exe
    "C:\Users\Admin\AppData\Local\Temp\f799f0e3e91fcacf2227083e2611601956f171328a3e51a21c2e5f21e4671cc8N.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:2036
    • 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:1680
      • 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:2232

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\ctfmen.exe

          Filesize

          4KB

          MD5

          9bb8301dbf50b22a0551638e51839adf

          SHA1

          59dbe8e7319ec7187612d79b49f067306ac16b64

          SHA256

          bb5007004f267d11f916d053b68bcf8eb559125a1f20f54125a68ce08bf877d9

          SHA512

          ce6b05ea7d5d79974ca6cad43457b377fe290c9ed294dd064ab4682b308baa5f47adde4ad1a4e7bea6d774e673f1bebe9c75ee03a9525abfe3f4f85751f58c52

        • C:\Windows\SysWOW64\satornas.dll

          Filesize

          183B

          MD5

          866d5a0283c3c92bb61ad38158f562f5

          SHA1

          e1207e602ef2a71fe13b659928afe66c17725b24

          SHA256

          998c6c3479ed9f302385f30251954f455eaca05571d415fab0b4189c5b11aaee

          SHA512

          66b7a5304826a562ac548b5916396cca1c4f636ca88bc5d92492fb8b1a46f0099eafa9b4f0705f312b07aefe8f9133db3ac5181e2f9b6afbcfe27eef2cf57187

        • C:\Windows\SysWOW64\smnss.exe

          Filesize

          118KB

          MD5

          c57d1ab57b86a646079ca448d5b05b06

          SHA1

          77ce2e8d5cb734a9e74f60289fe26c6e9c6f3007

          SHA256

          a4bb272eab4d4f8ceda81f4a746cffe298bdf18dba3740e263a75054c68ab45d

          SHA512

          5fec67d300d86fdefe987ef8a95a45f1f22a9f242a528abc60f02adb30eefb024209f5b03ec3bb3fed38777acd75958a0d2980b687c8c0d2a559a01615c52b7e

        • \Windows\SysWOW64\shervans.dll

          Filesize

          8KB

          MD5

          1351ff5c0b105a1b7a13c06304e3f550

          SHA1

          a81755c89a0557faee56d6d8cce68eb1923f2e78

          SHA256

          ec4fafb645d5712415d16df67ed04ce59d87a6a131f8a41e081a67de3215b5f9

          SHA512

          7b98d0906b50988b113173c776208ed52311b74a5ed56e2d1110be1a1c39a0ff808e5bf19a8ac24e8b890e86d84efe7839a95d2e52c2b2bc9abce00aae4915b2

        • memory/1680-34-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/1680-29-0x0000000000320000-0x000000000033F000-memory.dmp

          Filesize

          124KB

        • memory/1680-27-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2036-24-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/2036-25-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/2036-0-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/2036-12-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/2232-36-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/2232-41-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/2232-43-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/2232-44-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB