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Analysis

  • max time kernel
    144s
  • max time network
    148s
  • 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, 22:33

General

  • Target

    05b61e1ecdeef855125b966e0ce02f54.exe

  • Size

    3.0MB

  • MD5

    05b61e1ecdeef855125b966e0ce02f54

  • SHA1

    21b81dd98421d0e060dfa68c7edd4829126cd936

  • SHA256

    2c8582895c86201aa9f95178e45f7a5d5d4bbe4cba3d35cddbb1219d3169903b

  • SHA512

    ffc74de2ffebf7057b1cf0eb886ee476ec12be0b8508b23124788a39ea9b3f1df839161a5413b4f5f2b170e063e2f9e3d5ec357296713100a4bf7414f77badbc

  • SSDEEP

    49152:cx0py9HwcakLhukrCZ6T6GfUstcakLc2QTl/UD0b3NAzYGcakLhukrCZ6T6GfUsI:cx3pwcakl1rCZ+6GfUstcakY2mlc4GYk

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\05b61e1ecdeef855125b966e0ce02f54.exe
    "C:\Users\Admin\AppData\Local\Temp\05b61e1ecdeef855125b966e0ce02f54.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3352
    • C:\Users\Admin\AppData\Local\Temp\05b61e1ecdeef855125b966e0ce02f54.exe
      C:\Users\Admin\AppData\Local\Temp\05b61e1ecdeef855125b966e0ce02f54.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4524
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 716
        3⤵
        • Program crash
        PID:1620
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 736
        3⤵
        • Program crash
        PID:636
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 736
        3⤵
        • Program crash
        PID:728
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 748
        3⤵
        • Program crash
        PID:944
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 1468
        3⤵
        • Program crash
        PID:2648
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 1916
        3⤵
        • Program crash
        PID:3016
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 2148
        3⤵
        • Program crash
        PID:4008
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 2108
        3⤵
        • Program crash
        PID:1068
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 1932
        3⤵
        • Program crash
        PID:4368
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 1920
        3⤵
        • Program crash
        PID:3536
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 1932
        3⤵
        • Program crash
        PID:4344
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 1956
        3⤵
        • Program crash
        PID:4052
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 1960
        3⤵
        • Program crash
        PID:3480
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 1956
        3⤵
        • Program crash
        PID:4776
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 1928
        3⤵
        • Program crash
        PID:2972
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 712
        3⤵
        • Program crash
        PID:440
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4524 -ip 4524
    1⤵
      PID:4776
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 604
      1⤵
      • Program crash
      PID:4832
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Query /XML /TN nMQUF5AE494a
      1⤵
        PID:4852
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN nMQUF5AE494a > C:\Users\Admin\AppData\Local\Temp\sBlyktm.xml
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:4204
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\05b61e1ecdeef855125b966e0ce02f54.exe" /TN nMQUF5AE494a /F
        1⤵
        • Creates scheduled task(s)
        PID:5060
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4524 -ip 4524
        1⤵
          PID:2344
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4524 -s 636
          1⤵
          • Program crash
          PID:4384
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4524 -ip 4524
          1⤵
            PID:2452
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4524 -ip 4524
            1⤵
              PID:1108
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4524 -ip 4524
              1⤵
                PID:396
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4524 -ip 4524
                1⤵
                  PID:1612
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4524 -ip 4524
                  1⤵
                    PID:4212
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4524 -ip 4524
                    1⤵
                      PID:2364
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 4524 -ip 4524
                      1⤵
                        PID:2976
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 616 -p 4524 -ip 4524
                        1⤵
                          PID:3932
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 612 -p 4524 -ip 4524
                          1⤵
                            PID:512
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 644 -p 4524 -ip 4524
                            1⤵
                              PID:1252
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4524 -ip 4524
                              1⤵
                                PID:1140
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 4524 -ip 4524
                                1⤵
                                  PID:2264
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 680 -p 4524 -ip 4524
                                  1⤵
                                    PID:2372
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 672 -p 4524 -ip 4524
                                    1⤵
                                      PID:3728
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 648 -p 4524 -ip 4524
                                      1⤵
                                        PID:2112
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 676 -p 4524 -ip 4524
                                        1⤵
                                          PID:4268

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\05b61e1ecdeef855125b966e0ce02f54.exe

                                          Filesize

                                          381KB

                                          MD5

                                          05345c88dad34be144ee94554e0120bc

                                          SHA1

                                          bd03a394afb92a1a69f2dac3db08a8825021fe54

                                          SHA256

                                          a02ad73a35bfbe8cb4e06e90322d685e6acb64b75404907f969674d4ea0ac771

                                          SHA512

                                          73cf9ef34a03b749eff017b32335e845e0c1e0b21eeca08a37cb0bf715c33ea27ff20468d971e981d567203a54fa845bfacd0e33653b3a299b72296e2f2287a4

                                        • memory/3352-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3352-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3352-7-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3352-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4524-17-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4524-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/4524-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4524-15-0x0000000024030000-0x00000000240AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4524-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB