Analysis

  • max time kernel
    196s
  • max time network
    204s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2023, 01:32

General

  • Target

    c9e6dee589715daa2c0bde8d9a9de139_JC.exe

  • Size

    48KB

  • MD5

    c9e6dee589715daa2c0bde8d9a9de139

  • SHA1

    a46154a248df435adab1e58cfadd2b56dd653c92

  • SHA256

    32c2b0e2b89103da6722110439572b10fd288054af0c7651b00d3d3568ce475a

  • SHA512

    aafa36cf637511c61d29f4429e82a1f91ac0dda3abea7eb47ae4db603f3c88eb1ce6eafd0b8aead4f697dd326e108193f017c9bea7191382e2886345e9e8b4ab

  • SSDEEP

    768:4vQ5qeLHRdw2iPSMEk/6KMvu571x6EMb96/yX:4vQVLHjw2iWPKMvw71A7oyX

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9e6dee589715daa2c0bde8d9a9de139_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\c9e6dee589715daa2c0bde8d9a9de139_JC.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5104
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\C9E6DE~1.EXE > nul
      2⤵
        PID:5084
    • C:\Windows\Debug\fsohost.exe
      C:\Windows\Debug\fsohost.exe
      1⤵
      • Executes dropped EXE
      PID:4896
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4896 -s 592
        2⤵
        • Program crash
        PID:656
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4896 -ip 4896
      1⤵
        PID:4740
      • C:\Windows\Debug\fsohost.exe
        C:\Windows\Debug\fsohost.exe
        1⤵
        • Executes dropped EXE
        PID:412
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 412 -s 564
          2⤵
          • Program crash
          PID:1952
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 412 -ip 412
        1⤵
          PID:932
        • C:\Windows\Debug\fsohost.exe
          C:\Windows\Debug\fsohost.exe
          1⤵
          • Executes dropped EXE
          PID:4900
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4900 -s 564
            2⤵
            • Program crash
            PID:1524
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4900 -ip 4900
          1⤵
            PID:3684

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\Debug\fsohost.exe

            Filesize

            48KB

            MD5

            91341f5c4eb5e69057cf8651fb24bfc3

            SHA1

            8c38bee6d2189ecc5ed2869c86d732d24f48a9db

            SHA256

            4e2d2efe23d4935eeffe96985f102c4eaa35064d067abe94a25f9715fe4785ca

            SHA512

            88156825731df5001ff1d0c51dd50f42a5b0cf0b0857fa6b43b6113ecceba7b6acbf9ae7b88037eed5e8a3294f96b1d12d0a3f92c1ba0bec6c1e69dab1096e3a

          • C:\Windows\debug\fsohost.exe

            Filesize

            48KB

            MD5

            91341f5c4eb5e69057cf8651fb24bfc3

            SHA1

            8c38bee6d2189ecc5ed2869c86d732d24f48a9db

            SHA256

            4e2d2efe23d4935eeffe96985f102c4eaa35064d067abe94a25f9715fe4785ca

            SHA512

            88156825731df5001ff1d0c51dd50f42a5b0cf0b0857fa6b43b6113ecceba7b6acbf9ae7b88037eed5e8a3294f96b1d12d0a3f92c1ba0bec6c1e69dab1096e3a

          • C:\Windows\debug\fsohost.exe

            Filesize

            48KB

            MD5

            91341f5c4eb5e69057cf8651fb24bfc3

            SHA1

            8c38bee6d2189ecc5ed2869c86d732d24f48a9db

            SHA256

            4e2d2efe23d4935eeffe96985f102c4eaa35064d067abe94a25f9715fe4785ca

            SHA512

            88156825731df5001ff1d0c51dd50f42a5b0cf0b0857fa6b43b6113ecceba7b6acbf9ae7b88037eed5e8a3294f96b1d12d0a3f92c1ba0bec6c1e69dab1096e3a

          • C:\Windows\debug\fsohost.exe

            Filesize

            48KB

            MD5

            91341f5c4eb5e69057cf8651fb24bfc3

            SHA1

            8c38bee6d2189ecc5ed2869c86d732d24f48a9db

            SHA256

            4e2d2efe23d4935eeffe96985f102c4eaa35064d067abe94a25f9715fe4785ca

            SHA512

            88156825731df5001ff1d0c51dd50f42a5b0cf0b0857fa6b43b6113ecceba7b6acbf9ae7b88037eed5e8a3294f96b1d12d0a3f92c1ba0bec6c1e69dab1096e3a

          • memory/412-8-0x0000000000400000-0x000000000040C000-memory.dmp

            Filesize

            48KB

          • memory/4896-5-0x0000000000400000-0x000000000040C000-memory.dmp

            Filesize

            48KB

          • memory/4900-10-0x0000000000400000-0x000000000040C000-memory.dmp

            Filesize

            48KB

          • memory/5104-0-0x0000000000400000-0x000000000040C000-memory.dmp

            Filesize

            48KB

          • memory/5104-6-0x0000000000400000-0x000000000040C000-memory.dmp

            Filesize

            48KB