Analysis

  • max time kernel
    32s
  • max time network
    196s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    01-07-2021 14:13

General

  • Target

    a7a86cbf520c0ca37e2f8e37584fcd9c68e79614fd8352d10a7bb223c3a3a39b.exe

  • Size

    421KB

  • MD5

    ffff18fc7c2166c2a1a3c3d8bbd95ba1

  • SHA1

    7af27ee542f599e4b68a032bc43295eec03c1e0e

  • SHA256

    a7a86cbf520c0ca37e2f8e37584fcd9c68e79614fd8352d10a7bb223c3a3a39b

  • SHA512

    3a36a1b6cf4b933cc546157b51a48e0b87fd1bc9fc41b5763500ecf89fca7017e2fdc721593ff6eaa2607b434c4d0133132460f1d090d5f459905f410a4c1435

Score
10/10

Malware Config

Signatures

  • GoldDragon

    GoldDragon is a second-stage backdoor attributed to Kimsuky.

  • Enumerates physical storage devices 1 TTPs

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

  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a7a86cbf520c0ca37e2f8e37584fcd9c68e79614fd8352d10a7bb223c3a3a39b.exe
    "C:\Users\Admin\AppData\Local\Temp\a7a86cbf520c0ca37e2f8e37584fcd9c68e79614fd8352d10a7bb223c3a3a39b.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c dir C:\Users\Admin\Desktop\ >> C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
      2⤵
        PID:1676
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c dir C:\Users\Admin\AppData\Roaming\MICROS~1\Windows\Recent\ >> C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
        2⤵
          PID:664
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c dir C:\PROGRA~2\ >> C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
          2⤵
            PID:556
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c systeminfo >> C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1516
            • C:\Windows\SysWOW64\systeminfo.exe
              systeminfo
              3⤵
              • Gathers system information
              PID:1748

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Discovery

        System Information Discovery

        2
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
          MD5

          d78454a6255fe1cb8d7bbf30e19760a0

          SHA1

          8d896df9d2891403c528789b4db1bfc5983ddc05

          SHA256

          9f6f510e547be626f51da665e20792504e2327f7ddcb695edf8504f0bff748ea

          SHA512

          32227aea9382031d99026c948db8f37f624be4c5b1581bf12822b08bc16691a86b09902ccd0d1b9e83678a9de1b1821af79ca70de4ccf732f3e525468a4d19b4

        • C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
          MD5

          15e5856a237c9e8c91672d408887ffe0

          SHA1

          f787994f52c25df630ca6621e0af035a821a741d

          SHA256

          b033a69e8bd98113c09f2dea6ff28b0fadfd5a862c29625d073f941acd3e80c0

          SHA512

          20e3604c0c6e7d6894b5132b796702310d3089b254009882afcc12dbf29b7d42544a8a943edd33c0e1f1c48e7ae78f9f83e82d7679b7475a41fa342b8fd1ac2b

        • C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
          MD5

          15e5856a237c9e8c91672d408887ffe0

          SHA1

          f787994f52c25df630ca6621e0af035a821a741d

          SHA256

          b033a69e8bd98113c09f2dea6ff28b0fadfd5a862c29625d073f941acd3e80c0

          SHA512

          20e3604c0c6e7d6894b5132b796702310d3089b254009882afcc12dbf29b7d42544a8a943edd33c0e1f1c48e7ae78f9f83e82d7679b7475a41fa342b8fd1ac2b

        • C:\Users\Admin\AppData\Roaming\MICROS~1\HNC\asd.docx
          MD5

          0ba11dd7ebd82acf8eb8d46392972a43

          SHA1

          78ef34067da15f7e16d5372713c6502fb5604cce

          SHA256

          1fd23c4af0ab23e2be329b2630b16aa2ad4c7ea5a42ec1ba4553e4f18d5d5505

          SHA512

          741eb485333fcce39eede7cb5e6ecb5940c380e945760bd6867184a21e83896fd7ce615924c1a6f499afd4a8885ece97b5f049170602045b84e92cea50da0d0e

        • memory/556-63-0x0000000000000000-mapping.dmp
        • memory/664-61-0x0000000000000000-mapping.dmp
        • memory/1100-59-0x0000000075AF1000-0x0000000075AF3000-memory.dmp
          Filesize

          8KB

        • memory/1516-65-0x0000000000000000-mapping.dmp
        • memory/1676-60-0x0000000000000000-mapping.dmp
        • memory/1748-67-0x0000000000000000-mapping.dmp