Analysis

  • max time kernel
    129s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2023, 16:55

General

  • Target

    2edb7dc7279ef1ba92c39f1313014c28.exe

  • Size

    159KB

  • MD5

    2edb7dc7279ef1ba92c39f1313014c28

  • SHA1

    96aa7de9ee053b4c0add461fee9a642601851aaa

  • SHA256

    47e7cc281a5975f4b6b2e4132483585a09d29f98a17de7e4ae518ba4e2406690

  • SHA512

    af001ff6e88918e9e0849f4e1b4df318c57490b8c9535c22b75f2416283a11b97511a6bde56be6e55c9a519df5eb0c933642b1c2174d196d159eca1a3277de61

  • SSDEEP

    3072:f22ihA0m3BJf0AEtrZF8H/b7JD5nEyI7xcMHDRnw:QA0m3T0A2Zu7LVghdw

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2edb7dc7279ef1ba92c39f1313014c28.exe
    "C:\Users\Admin\AppData\Local\Temp\2edb7dc7279ef1ba92c39f1313014c28.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Users\Admin\AppData\Local\Temp\biclient.exe
      "C:\Users\Admin\AppData\Local\Temp\biclient.exe" /initurl http://bi.bisrv.com/:affid:/:sid:/:uid:? /affid "ffonts" /id "kleptocracyufzn" /name "Kleptocracy" /uniqid 2edb7dc7279ef1ba92c39f1313014c28
      2⤵
      • Executes dropped EXE
      • Modifies Internet Explorer settings
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      PID:1756

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\CabC219.tmp

          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

        • C:\Users\Admin\AppData\Local\Temp\TarC26A.tmp

          Filesize

          171KB

          MD5

          9c0c641c06238516f27941aa1166d427

          SHA1

          64cd549fb8cf014fcd9312aa7a5b023847b6c977

          SHA256

          4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

          SHA512

          936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

        • C:\Users\Admin\AppData\Local\Temp\biclient.exe

          Filesize

          219KB

          MD5

          c66293ccd7cbe84b1b8f393ca5e4e6d7

          SHA1

          c24089d407e6280b79bec86532e9de0118e4de71

          SHA256

          ffbae29e2f233767fd42909720497165ce3552427ef93efb2fc714fb4204755f

          SHA512

          7ff97aa71f182035f90ba10c3bf8087280e3f34bf717bda139d642f4e043c64aa2b98d82a90a32f1df4b76f9d7610af62390fe934e514c90c703381a421c00b7

        • C:\Users\Admin\AppData\Local\Temp\config.ini

          Filesize

          89B

          MD5

          a4c8eccb7e3fac778902ae5991604166

          SHA1

          0db0ecf27e07ccc351079140287562e5709e80f4

          SHA256

          917140f2f932b733d2385b4109b58563691945bcc5d9691d24ebbea822f4d8e6

          SHA512

          231efdea31711846299893ee786c9a4f040df217eba58932e37c1052be507d7c504703cd8e172d41e060a261965fbebfe627f08e30858336dbd0a41411b9e2b4

        • memory/1732-13-0x0000000000400000-0x0000000000436000-memory.dmp

          Filesize

          216KB

        • memory/1756-14-0x0000000000090000-0x0000000000091000-memory.dmp

          Filesize

          4KB

        • memory/1756-436-0x0000000000090000-0x0000000000091000-memory.dmp

          Filesize

          4KB