Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2023, 20:01

General

  • Target

    027c4d8ad6dfc9df159fcdf8780b38c2.exe

  • Size

    2.0MB

  • MD5

    027c4d8ad6dfc9df159fcdf8780b38c2

  • SHA1

    e462bfa4776738e38eb453d2c366df1dcd235eed

  • SHA256

    f409c1762bf4fef5a71c8f92ae8bb5016ddc0b97b71e43420283ce3b992c55d2

  • SHA512

    148f4262df55ba110cf21826d643a610ecea951a32002c8760bfb29a0b56ce9d8c8659f671b5c6d00ef4783fca2d3f5ff6adefce48a7b30033208a35e7181a77

  • SSDEEP

    49152:uPMbLJQ0Is/GXkx/cakLz0ibq6yqhhubDY0CgOnQvEn0bcakLz0ibq6yqh:xJjIs/GX0/cakcibiqhMbMgOn7n0bcaI

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Program crash 18 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\027c4d8ad6dfc9df159fcdf8780b38c2.exe
    "C:\Users\Admin\AppData\Local\Temp\027c4d8ad6dfc9df159fcdf8780b38c2.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1876
    • C:\Users\Admin\AppData\Local\Temp\027c4d8ad6dfc9df159fcdf8780b38c2.exe
      C:\Users\Admin\AppData\Local\Temp\027c4d8ad6dfc9df159fcdf8780b38c2.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2096
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 704
        3⤵
        • Program crash
        PID:3740
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 644
        3⤵
        • Program crash
        PID:3532
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 736
        3⤵
        • Program crash
        PID:4256
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 748
        3⤵
        • Program crash
        PID:820
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 1468
        3⤵
        • Program crash
        PID:4676
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 1916
        3⤵
        • Program crash
        PID:2644
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 2144
        3⤵
        • Program crash
        PID:3828
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 1928
        3⤵
        • Program crash
        PID:1260
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 1920
        3⤵
        • Program crash
        PID:1132
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 2112
        3⤵
        • Program crash
        PID:448
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 1912
        3⤵
        • Program crash
        PID:3532
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 1924
        3⤵
        • Program crash
        PID:1752
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 2172
        3⤵
        • Program crash
        PID:2984
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 2144
        3⤵
        • Program crash
        PID:2152
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 1916
        3⤵
        • Program crash
        PID:2104
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 720
        3⤵
        • Program crash
        PID:4700
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\027c4d8ad6dfc9df159fcdf8780b38c2.exe" /TN 1WOV8tOcae1c /F
    1⤵
    • Creates scheduled task(s)
    PID:2408
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Query /XML /TN 1WOV8tOcae1c
    1⤵
      PID:4484
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 2096 -ip 2096
      1⤵
        PID:4392
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 616
        1⤵
        • Program crash
        PID:4568
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 1WOV8tOcae1c > C:\Users\Admin\AppData\Local\Temp\d2Ahz89.xml
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2624
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2096 -ip 2096
        1⤵
          PID:1128
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 636
          1⤵
          • Program crash
          PID:2804
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2096 -ip 2096
          1⤵
            PID:3168
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 2096 -ip 2096
            1⤵
              PID:3184
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2096 -ip 2096
              1⤵
                PID:4412
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2096 -ip 2096
                1⤵
                  PID:3560
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 2096 -ip 2096
                  1⤵
                    PID:2652
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 2096 -ip 2096
                    1⤵
                      PID:1988
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 2096 -ip 2096
                      1⤵
                        PID:4136
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 2096 -ip 2096
                        1⤵
                          PID:5028
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 2096 -ip 2096
                          1⤵
                            PID:3260
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 628 -p 2096 -ip 2096
                            1⤵
                              PID:4616
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 2096 -ip 2096
                              1⤵
                                PID:1972
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 2096 -ip 2096
                                1⤵
                                  PID:2384
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 644 -p 2096 -ip 2096
                                  1⤵
                                    PID:3920
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 2096 -ip 2096
                                    1⤵
                                      PID:5068
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 616 -p 2096 -ip 2096
                                      1⤵
                                        PID:2076
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 2096 -ip 2096
                                        1⤵
                                          PID:4400

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • memory/1876-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1876-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1876-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1876-7-0x0000000025030000-0x00000000250AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/2096-18-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/2096-23-0x00000000004B0000-0x000000000051B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/2096-22-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/2096-15-0x0000000023FA0000-0x000000002401E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/2096-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB