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Analysis

  • max time kernel
    163s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/01/2024, 12:25

General

  • Target

    4639ccffe066e7c9f5587f9f5116dc36.exe

  • Size

    3.9MB

  • MD5

    4639ccffe066e7c9f5587f9f5116dc36

  • SHA1

    abd93ae12ee86dfa8662b1e2d851f78abc812228

  • SHA256

    cd0a88177940b53496ad2860ba22af0a9952237b06583701162924d98c6e9c14

  • SHA512

    887c50e5bf2a1925048ca36401bdb01ec431c275a49722afcfb2d8054c211998331361d087ddef6930586f1db8f25e1ea9fe991e20e5b260c1e099617cc5b239

  • SSDEEP

    98304:p3jU/KggkaT7fcA9zyULG+TjlaJD0lVA9zyULG+wa3HaoYmQA9zyULG+TjlaJD0c:RjUYhzLqyEalizLqc3JdzLqyEalizLq

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 17 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\4639ccffe066e7c9f5587f9f5116dc36.exe
    "C:\Users\Admin\AppData\Local\Temp\4639ccffe066e7c9f5587f9f5116dc36.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:968
    • C:\Users\Admin\AppData\Local\Temp\4639ccffe066e7c9f5587f9f5116dc36.exe
      C:\Users\Admin\AppData\Local\Temp\4639ccffe066e7c9f5587f9f5116dc36.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:5080
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\4639ccffe066e7c9f5587f9f5116dc36.exe" /TN aMYATtOZda0c /F
        3⤵
        • Creates scheduled task(s)
        PID:2696
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN aMYATtOZda0c > C:\Users\Admin\AppData\Local\Temp\4Ep7BB.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1660
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN aMYATtOZda0c
          4⤵
            PID:4928
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 616
          3⤵
          • Program crash
          PID:4364
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 632
          3⤵
          • Program crash
          PID:2960
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 668
          3⤵
          • Program crash
          PID:4708
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 740
          3⤵
          • Program crash
          PID:2264
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 740
          3⤵
          • Program crash
          PID:1120
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 604
          3⤵
          • Program crash
          PID:1364
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 1264
          3⤵
          • Program crash
          PID:4380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 1540
          3⤵
          • Program crash
          PID:3308
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 1916
          3⤵
          • Program crash
          PID:3556
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 2116
          3⤵
          • Program crash
          PID:4916
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 1932
          3⤵
          • Program crash
          PID:1344
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 1920
          3⤵
          • Program crash
          PID:864
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 2000
          3⤵
          • Program crash
          PID:3920
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 2104
          3⤵
          • Program crash
          PID:956
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 1940
          3⤵
          • Program crash
          PID:3000
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 2188
          3⤵
          • Program crash
          PID:2872
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 1164
          3⤵
          • Program crash
          PID:4652
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5080 -ip 5080
      1⤵
        PID:648
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 5080 -ip 5080
        1⤵
          PID:3336
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 5080 -ip 5080
          1⤵
            PID:2332
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5080 -ip 5080
            1⤵
              PID:1600
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 5080 -ip 5080
              1⤵
                PID:4836
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5080 -ip 5080
                1⤵
                  PID:3456
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5080 -ip 5080
                  1⤵
                    PID:4376
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 5080 -ip 5080
                    1⤵
                      PID:3180
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 5080 -ip 5080
                      1⤵
                        PID:2040
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5080 -ip 5080
                        1⤵
                          PID:4028
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 5080 -ip 5080
                          1⤵
                            PID:4952
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 5080 -ip 5080
                            1⤵
                              PID:720
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 5080 -ip 5080
                              1⤵
                                PID:3384
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 5080 -ip 5080
                                1⤵
                                  PID:2996
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 5080 -ip 5080
                                  1⤵
                                    PID:2696
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 5080 -ip 5080
                                    1⤵
                                      PID:3128
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5080 -ip 5080
                                      1⤵
                                        PID:2000

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Temp\4639ccffe066e7c9f5587f9f5116dc36.exe

                                        Filesize

                                        3.9MB

                                        MD5

                                        593a28b3a6b7bed6d839fd4ff8801fb9

                                        SHA1

                                        f20ee3fa7893325a4a82b3121a55505482bf548a

                                        SHA256

                                        f5c5583c28ac5fd067426c42486e9013aca9a600402647a562c7731af3e7e38f

                                        SHA512

                                        a42bfba3e0801c61c9c9ae293a64844286e8fe6d43d1ce7e598c78dd08da54a8ef68bc1f69827343c325746e0ddf835075d3c9fce1810601efd364a8d0a20d31

                                      • C:\Users\Admin\AppData\Local\Temp\4Ep7BB.xml

                                        Filesize

                                        1KB

                                        MD5

                                        0b3b67993a5db20dea2fedf454000142

                                        SHA1

                                        afa0faba9fb6f30229f64731c58abbc416cde619

                                        SHA256

                                        5299466655fb362a27555ab82f84a0be95d59d43947aa32e194dad6241d96cc0

                                        SHA512

                                        7f51617c9dea90d65ef1667446489c6ac3da2709ab34e0268fee074d27e3b77b985223fdec2a0409551d4775adcbbffbc449c93553854d888f35d29c4f817ae5

                                      • memory/968-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/968-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/968-5-0x0000000024FF0000-0x000000002506E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/968-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/5080-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/5080-17-0x0000000024FF0000-0x000000002506E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/5080-22-0x0000000000400000-0x000000000045B000-memory.dmp

                                        Filesize

                                        364KB

                                      • memory/5080-24-0x0000000000470000-0x00000000004DB000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/5080-32-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB