Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/12/2023, 11:07

General

  • Target

    16c4b0c07c6245ef4e68bf0ec93880b7.exe

  • Size

    1003KB

  • MD5

    16c4b0c07c6245ef4e68bf0ec93880b7

  • SHA1

    4cb01d35a7f13080e6005c41414251ec00d31458

  • SHA256

    f9edc6a48b526e425707c8afd97f305fca229c1c6813a948eb457e79457553e9

  • SHA512

    7cd8531c334b514c363a650f1473845d61d5844731d13698f0881ae11cb3102fbbdc204dc1e97b29be6f10c7450552ca12108809694918ff6aaecc963bdb7b1e

  • SSDEEP

    12288:dwUE7+ljLOnOwi22NmgG0eWx6kaRyfkhCPTJkzFWglZdw/7+Vj8gwKXgrO:dBS+lG172slkaRaP1cFW8Za7+Vj8l4g

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\16c4b0c07c6245ef4e68bf0ec93880b7.exe
    "C:\Users\Admin\AppData\Local\Temp\16c4b0c07c6245ef4e68bf0ec93880b7.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2252
    • C:\Users\Admin\AppData\Local\Temp\16c4b0c07c6245ef4e68bf0ec93880b7.exe
      C:\Users\Admin\AppData\Local\Temp\16c4b0c07c6245ef4e68bf0ec93880b7.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:728
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 648
        3⤵
        • Program crash
        PID:2380
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 656
        3⤵
        • Program crash
        PID:1552
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 1464
        3⤵
        • Program crash
        PID:2332
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 1468
        3⤵
        • Program crash
        PID:3128
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 2124
        3⤵
        • Program crash
        PID:4076
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 2104
        3⤵
        • Program crash
        PID:3776
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 1928
        3⤵
        • Program crash
        PID:4440
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 1936
        3⤵
        • Program crash
        PID:5104
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 2152
        3⤵
        • Program crash
        PID:4516
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 2180
        3⤵
        • Program crash
        PID:4456
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 2200
        3⤵
        • Program crash
        PID:4436
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 2124
        3⤵
        • Program crash
        PID:2684
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 2204
        3⤵
        • Program crash
        PID:3132
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 712
        3⤵
        • Program crash
        PID:4644
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\16c4b0c07c6245ef4e68bf0ec93880b7.exe" /TN mCaqQXkK46ae /F
    1⤵
    • Creates scheduled task(s)
    PID:4364
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Query /XML /TN mCaqQXkK46ae
    1⤵
      PID:3668
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 728 -ip 728
      1⤵
        PID:4068
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 616
        1⤵
        • Program crash
        PID:2236
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN mCaqQXkK46ae > C:\Users\Admin\AppData\Local\Temp\bTx2tp.xml
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:4044
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 728 -ip 728
        1⤵
          PID:4796
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 652
          1⤵
          • Program crash
          PID:2980
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 728 -ip 728
          1⤵
            PID:1484
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 716
            1⤵
            • Program crash
            PID:1692
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 728 -ip 728
            1⤵
              PID:5044
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 648
              1⤵
              • Program crash
              PID:1996
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 728 -ip 728
              1⤵
                PID:3340
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 728 -ip 728
                1⤵
                  PID:4540
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 728 -ip 728
                  1⤵
                    PID:1212
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 728 -ip 728
                    1⤵
                      PID:3808
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 728 -ip 728
                      1⤵
                        PID:2052
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 728 -ip 728
                        1⤵
                          PID:3908
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 728 -ip 728
                          1⤵
                            PID:2860
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 728 -ip 728
                            1⤵
                              PID:2508
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 728 -ip 728
                              1⤵
                                PID:2128
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 728 -ip 728
                                1⤵
                                  PID:5020
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 728 -ip 728
                                  1⤵
                                    PID:3892
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 728 -ip 728
                                    1⤵
                                      PID:1860
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 728 -ip 728
                                      1⤵
                                        PID:4532
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 728 -ip 728
                                        1⤵
                                          PID:2220

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • memory/728-17-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/728-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/728-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/728-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/728-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/2252-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/2252-6-0x0000000001720000-0x000000000179E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/2252-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/2252-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB