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Analysis

  • max time kernel
    182s
  • max time network
    192s
  • 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, 14:20

General

  • Target

    399b0e1c544c1b24811cbb5aec996874.exe

  • Size

    7.8MB

  • MD5

    399b0e1c544c1b24811cbb5aec996874

  • SHA1

    6545243f8c03361cc07e835d5750b512f9736c5b

  • SHA256

    7b9dd0b7156de5423a0e515f4d3032dd8df231c4c66bd5836375a501e8ed6760

  • SHA512

    3cb2f57b4cee06e02c78bddc1b0fffd2dfac27520918a011b8637c8c4f659ec5fa36c7c14ce3f8aafc119569da16a2e5b92250aeb3bf9c2bec1b94bf7b279e39

  • SSDEEP

    196608:f0dlirumPMdlirdfbePadlirumPMdlir2hT+cvdlirumPMdlirdfbePadlirumPr:f6m1PmQqcNm1Pm

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\399b0e1c544c1b24811cbb5aec996874.exe
    "C:\Users\Admin\AppData\Local\Temp\399b0e1c544c1b24811cbb5aec996874.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4100
    • C:\Users\Admin\AppData\Local\Temp\399b0e1c544c1b24811cbb5aec996874.exe
      C:\Users\Admin\AppData\Local\Temp\399b0e1c544c1b24811cbb5aec996874.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3596
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\399b0e1c544c1b24811cbb5aec996874.exe" /TN xWvB9PLxff3d /F
        3⤵
        • Creates scheduled task(s)
        PID:1848
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN xWvB9PLxff3d > C:\Users\Admin\AppData\Local\Temp\TxkNmq.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3792
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 608
        3⤵
        • Program crash
        PID:1756
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 632
        3⤵
        • Program crash
        PID:2312
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 640
        3⤵
        • Program crash
        PID:2844
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 716
        3⤵
        • Program crash
        PID:2184
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 716
        3⤵
        • Program crash
        PID:3292
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 804
        3⤵
        • Program crash
        PID:5088
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 1476
        3⤵
        • Program crash
        PID:908
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 1484
        3⤵
        • Program crash
        PID:3572
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 1656
        3⤵
        • Program crash
        PID:3508
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 1932
        3⤵
        • Program crash
        PID:1160
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 1920
        3⤵
        • Program crash
        PID:2744
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 1932
        3⤵
        • Program crash
        PID:3292
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 1924
        3⤵
        • Program crash
        PID:3844
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 1988
        3⤵
        • Program crash
        PID:3368
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 2172
        3⤵
        • Program crash
        PID:2972
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 2112
        3⤵
        • Program crash
        PID:1176
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 2148
        3⤵
        • Program crash
        PID:5004
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 628
        3⤵
        • Program crash
        PID:1620
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Query /XML /TN xWvB9PLxff3d
    1⤵
      PID:3600
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3596 -ip 3596
      1⤵
        PID:1620
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3596 -ip 3596
        1⤵
          PID:2716
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3596 -ip 3596
          1⤵
            PID:3648
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3596 -ip 3596
            1⤵
              PID:2088
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3596 -ip 3596
              1⤵
                PID:2556
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3596 -ip 3596
                1⤵
                  PID:1892
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3596 -ip 3596
                  1⤵
                    PID:1848
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3596 -ip 3596
                    1⤵
                      PID:5008
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3596 -ip 3596
                      1⤵
                        PID:4680
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3596 -ip 3596
                        1⤵
                          PID:5016
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3596 -ip 3596
                          1⤵
                            PID:752
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3596 -ip 3596
                            1⤵
                              PID:1932
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3596 -ip 3596
                              1⤵
                                PID:1320
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3596 -ip 3596
                                1⤵
                                  PID:1356
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3596 -ip 3596
                                  1⤵
                                    PID:3288
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3596 -ip 3596
                                    1⤵
                                      PID:3336
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3596 -ip 3596
                                      1⤵
                                        PID:2180
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3596 -ip 3596
                                        1⤵
                                          PID:1204

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • memory/3596-18-0x00000000016E0000-0x000000000175E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3596-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3596-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/3596-15-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3596-32-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4100-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4100-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4100-4-0x0000000001730000-0x00000000017AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4100-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB