Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/12/2023, 10:50

General

  • Target

    166b0a48ab73b55897feb33dd43e8ab1.exe

  • Size

    1003KB

  • MD5

    166b0a48ab73b55897feb33dd43e8ab1

  • SHA1

    01a06ce8c8252587ddb00670b9731b3765f37d1a

  • SHA256

    eaba443c8d01f65f9ccb1bdcfa7199678dea41e341c820ffbccb51de2657c908

  • SHA512

    08c70abdd04f7db7d42c438a20dd758a7b21ea240e54237e723092f8b30c6af0dfa63103f9d6d3d338d3ba5dbae9e0c35ab964a357777ee56d7357002e1c15a0

  • SSDEEP

    12288:9hAotcTxWRKf7AbueccO2tEoUhfH8P8/tToDrsqiQwRHKUqTv+X5esfmHMaLMb4m:3/cRzrN2XUhfP/tUViftKGpwseMvvG

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 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\166b0a48ab73b55897feb33dd43e8ab1.exe
    "C:\Users\Admin\AppData\Local\Temp\166b0a48ab73b55897feb33dd43e8ab1.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4260
    • C:\Users\Admin\AppData\Local\Temp\166b0a48ab73b55897feb33dd43e8ab1.exe
      C:\Users\Admin\AppData\Local\Temp\166b0a48ab73b55897feb33dd43e8ab1.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4048
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 780
        3⤵
        • Program crash
        PID:2236
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 708
        3⤵
        • Program crash
        PID:4704
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 1460
        3⤵
        • Program crash
        PID:4276
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 1916
        3⤵
        • Program crash
        PID:364
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 2144
        3⤵
        • Program crash
        PID:3572
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 2096
        3⤵
        • Program crash
        PID:1876
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 1928
        3⤵
        • Program crash
        PID:4300
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 1952
        3⤵
        • Program crash
        PID:4432
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 2132
        3⤵
        • Program crash
        PID:4344
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 2208
        3⤵
        • Program crash
        PID:3044
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 2184
        3⤵
        • Program crash
        PID:3032
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 1928
        3⤵
        • Program crash
        PID:1380
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 1924
        3⤵
        • Program crash
        PID:3740
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 736
        3⤵
        • Program crash
        PID:4560
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4048 -ip 4048
    1⤵
      PID:4628
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 616
      1⤵
      • Program crash
      PID:4664
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Query /XML /TN 0Su7L8S745c1
      1⤵
        PID:760
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 0Su7L8S745c1 > C:\Users\Admin\AppData\Local\Temp\SjIjJf977.xml
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2404
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4048 -ip 4048
        1⤵
          PID:4596
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 648
          1⤵
          • Program crash
          PID:1272
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\166b0a48ab73b55897feb33dd43e8ab1.exe" /TN 0Su7L8S745c1 /F
          1⤵
          • Creates scheduled task(s)
          PID:4776
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4048 -ip 4048
          1⤵
            PID:552
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 740
            1⤵
            • Program crash
            PID:872
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4048 -ip 4048
            1⤵
              PID:2212
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 780
              1⤵
              • Program crash
              PID:2608
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4048 -ip 4048
              1⤵
                PID:2652
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 4048 -ip 4048
                1⤵
                  PID:2388
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4048 -ip 4048
                  1⤵
                    PID:4588
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4048 -ip 4048
                    1⤵
                      PID:2132
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4048 -ip 4048
                      1⤵
                        PID:1972
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4048 -ip 4048
                        1⤵
                          PID:2008
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4048 -ip 4048
                          1⤵
                            PID:4996
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4048 -ip 4048
                            1⤵
                              PID:1296
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4048 -ip 4048
                              1⤵
                                PID:4508
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4048 -ip 4048
                                1⤵
                                  PID:4560
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4048 -ip 4048
                                  1⤵
                                    PID:2468
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 4048 -ip 4048
                                    1⤵
                                      PID:2244
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 4048 -ip 4048
                                      1⤵
                                        PID:208
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 4048 -ip 4048
                                        1⤵
                                          PID:4548

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\166b0a48ab73b55897feb33dd43e8ab1.exe

                                          Filesize

                                          94KB

                                          MD5

                                          a63391a0a7f8068ab8e4e6ce330c2e12

                                          SHA1

                                          d58e0b88932b976e622de10ac18ffc2e9b600bfd

                                          SHA256

                                          7450be1a6e81e6a3c8986020a9f05fcdc399648d2b27bfef1daaf352dd20ff9c

                                          SHA512

                                          eab77c96c3759007e6e923d63c7fa42fa48ff8dfce7982cc365dbfe927a5b304904e507e0a9130e39387a5ebb8dcdb73f313a700e00836708a9cef0ca44162dd

                                        • memory/4048-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4048-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/4048-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4048-16-0x0000000024FF0000-0x000000002506E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4048-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4260-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4260-4-0x00000000018D0000-0x000000000194E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4260-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4260-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB