Analysis

  • max time kernel
    186s
  • max time network
    204s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 05:07

General

  • Target

    295eb3af3e737c859414ab9c74ce8769.exe

  • Size

    1003KB

  • MD5

    295eb3af3e737c859414ab9c74ce8769

  • SHA1

    93b9045aefa29dca06d3fb0b729c54c8dc835de0

  • SHA256

    a30404e4d38184c5cea0d21e7449158dfc46599bc649f93018b5c1ea070292c3

  • SHA512

    7f8ea01c85e7afbc9df92555bc433b0a4f7fbb282a611957d35b33c4d7745ce75d54cf99b520b00662f2f62c0290a09423eda586ab830993e9b4669a81390d95

  • SSDEEP

    24576:hxfhXj13pEyt1yrZYQDgMicH5f+64JRWFULCD+:hxfhXh3pbt1yrZYQDJicN+9zWFULG+

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Program crash 4 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\295eb3af3e737c859414ab9c74ce8769.exe
    "C:\Users\Admin\AppData\Local\Temp\295eb3af3e737c859414ab9c74ce8769.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Users\Admin\AppData\Local\Temp\295eb3af3e737c859414ab9c74ce8769.exe
      C:\Users\Admin\AppData\Local\Temp\295eb3af3e737c859414ab9c74ce8769.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3324
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\295eb3af3e737c859414ab9c74ce8769.exe" /TN apJZ6MnXc37d /F
        3⤵
        • Creates scheduled task(s)
        PID:1224
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN apJZ6MnXc37d > C:\Users\Admin\AppData\Local\Temp\8roZkOKIC.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1984
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN apJZ6MnXc37d
          4⤵
            PID:3256
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 608
          3⤵
          • Program crash
          PID:208
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 628
          3⤵
          • Program crash
          PID:3796
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 636
          3⤵
          • Program crash
          PID:3728
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 712
          3⤵
          • Program crash
          PID:4732
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3324 -ip 3324
      1⤵
        PID:4432
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3324 -ip 3324
        1⤵
          PID:4500
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3324 -ip 3324
          1⤵
            PID:1484
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3324 -ip 3324
            1⤵
              PID:5092

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\295eb3af3e737c859414ab9c74ce8769.exe

              Filesize

              1003KB

              MD5

              fa634809df216696018b6c76e9c1b2bc

              SHA1

              33934788e1e42a65eef2131e4ce22bf74cbb90ef

              SHA256

              2150e2c2039a3723c19a5ccf34d8534256f4abf48a39cdd68c308058cf884cd2

              SHA512

              acf5ffe9786dbb5ac922c7367c2bd4871532f193caeb2b41a154fbb08792ca71ec8ceb3c5acc5d368738fd2b61d007c970e78055a71d772a4e9de697c4c955a3

            • C:\Users\Admin\AppData\Local\Temp\8roZkOKIC.xml

              Filesize

              1KB

              MD5

              48c902c5641671407d2070cebd2cb1b3

              SHA1

              d4b8c89d02baa8fb5ffa55751cd240f8a5176092

              SHA256

              f1743f5c27bf69a3dd1699f1bab5eaf7b2727d85e1bc812eb5e46eca984794f1

              SHA512

              5ad6eba9fd950f1b2b948fbdce3c59e743d933c32c508cb3880e8016c2ac93f4c4b1b52811317aaa3a6b3b6b564167c28ee08f4832b1d6ba30c44f93fc36aa4b

            • memory/1208-0-0x0000000000400000-0x000000000065C000-memory.dmp

              Filesize

              2.4MB

            • memory/1208-1-0x0000000000400000-0x000000000046B000-memory.dmp

              Filesize

              428KB

            • memory/1208-3-0x0000000024FE0000-0x000000002505E000-memory.dmp

              Filesize

              504KB

            • memory/1208-13-0x0000000000400000-0x000000000046B000-memory.dmp

              Filesize

              428KB

            • memory/3324-14-0x0000000000400000-0x000000000065C000-memory.dmp

              Filesize

              2.4MB

            • memory/3324-15-0x0000000001730000-0x00000000017AE000-memory.dmp

              Filesize

              504KB

            • memory/3324-22-0x0000000000470000-0x00000000004DB000-memory.dmp

              Filesize

              428KB

            • memory/3324-23-0x0000000000400000-0x000000000045B000-memory.dmp

              Filesize

              364KB

            • memory/3324-32-0x0000000000400000-0x000000000065C000-memory.dmp

              Filesize

              2.4MB