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Analysis

  • max time kernel
    136s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/01/2024, 21:32

General

  • Target

    63a87f3d8a90c87da4488667eb710c96.exe

  • Size

    1.6MB

  • MD5

    63a87f3d8a90c87da4488667eb710c96

  • SHA1

    f49f6997ee73a73e7166e76cef31efce10ba1ebf

  • SHA256

    7d93020d62d2ab16e4b863013816efa0452873c50ad6519d0ce448fae4563b23

  • SHA512

    47ed3cf3c59b888caa92f4e6fda5d40fef406e4a5619960e6d2c009cc3035aef484d293a1a27ee3e4000d9cd265085a90ca9f708ee7eb2fa08ed68f64a489602

  • SSDEEP

    49152:ENKmDynHE0g+qWMeOdcakLz0LjHvnkgsCl2T+66UDcakLz0O:ENKab0fqWMe4cakcLjHvnk/CkT+66UD2

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\63a87f3d8a90c87da4488667eb710c96.exe
    "C:\Users\Admin\AppData\Local\Temp\63a87f3d8a90c87da4488667eb710c96.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Users\Admin\AppData\Local\Temp\63a87f3d8a90c87da4488667eb710c96.exe
      C:\Users\Admin\AppData\Local\Temp\63a87f3d8a90c87da4488667eb710c96.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4812
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 640
        3⤵
        • Program crash
        PID:2960
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 736
        3⤵
        • Program crash
        PID:1952
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 736
        3⤵
        • Program crash
        PID:4360
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 792
        3⤵
        • Program crash
        PID:3696
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1468
        3⤵
        • Program crash
        PID:1556
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1916
        3⤵
        • Program crash
        PID:3956
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 2144
        3⤵
        • Program crash
        PID:2920
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1956
        3⤵
        • Program crash
        PID:3420
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1920
        3⤵
        • Program crash
        PID:1704
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1912
        3⤵
        • Program crash
        PID:1540
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1976
        3⤵
        • Program crash
        PID:516
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1924
        3⤵
        • Program crash
        PID:3364
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 2164
        3⤵
        • Program crash
        PID:2564
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1968
        3⤵
        • Program crash
        PID:1440
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1980
        3⤵
        • Program crash
        PID:4540
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 628
        3⤵
        • Program crash
        PID:3364
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\63a87f3d8a90c87da4488667eb710c96.exe" /TN Jdf19jEI5ce2 /F
    1⤵
    • Creates scheduled task(s)
    PID:3744
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Query /XML /TN Jdf19jEI5ce2
    1⤵
      PID:3080
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4812 -ip 4812
      1⤵
        PID:1440
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 604
        1⤵
        • Program crash
        PID:2948
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN Jdf19jEI5ce2 > C:\Users\Admin\AppData\Local\Temp\MF7vH.xml
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2120
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4812 -ip 4812
        1⤵
          PID:1444
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 632
          1⤵
          • Program crash
          PID:1640
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4812 -ip 4812
          1⤵
            PID:1224
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4812 -ip 4812
            1⤵
              PID:1968
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4812 -ip 4812
              1⤵
                PID:4932
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 4812 -ip 4812
                1⤵
                  PID:4188
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 4812 -ip 4812
                  1⤵
                    PID:3024
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 4812 -ip 4812
                    1⤵
                      PID:2752
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 4812 -ip 4812
                      1⤵
                        PID:4124
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 4812 -ip 4812
                        1⤵
                          PID:2100
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 4812 -ip 4812
                          1⤵
                            PID:3212
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 612 -p 4812 -ip 4812
                            1⤵
                              PID:3152
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 628 -p 4812 -ip 4812
                              1⤵
                                PID:460
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 624 -p 4812 -ip 4812
                                1⤵
                                  PID:4260
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 4812 -ip 4812
                                  1⤵
                                    PID:5116
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 612 -p 4812 -ip 4812
                                    1⤵
                                      PID:4584
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 4812 -ip 4812
                                      1⤵
                                        PID:1156
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 388 -p 4812 -ip 4812
                                        1⤵
                                          PID:624

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\63a87f3d8a90c87da4488667eb710c96.exe

                                          Filesize

                                          382KB

                                          MD5

                                          a289c9c5efba2cdccd62b57ea32cef03

                                          SHA1

                                          fcf9ba38ddb314805944745a38642bfc70988f9e

                                          SHA256

                                          66138bc0725740a36e2b1dffa0ce6c3fa199ad7e420d9470fd922d2b9d256230

                                          SHA512

                                          b6ecebcd6bfe971addfde38ad537e4ad3a5d2319f278d4193d54e22b8b3f742f69287c7753593862a2529e852557dac177647423bcac5b6ccd798f1469dcf3df

                                        • memory/2672-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/2672-4-0x0000000001730000-0x00000000017AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/2672-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/2672-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4812-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4812-17-0x00000000018D0000-0x000000000194E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4812-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/4812-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4812-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB