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Analysis

  • max time kernel
    137s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2023, 04:43

General

  • Target

    666fb8cc7a72d37b7834809b3a052967.exe

  • Size

    7.8MB

  • MD5

    666fb8cc7a72d37b7834809b3a052967

  • SHA1

    f88a4e9a37c168a9722ac708f123f53f67f8c1cf

  • SHA256

    a6e76b3a56763a2bf329cd6bd9e11b668e5e03986749eff93ec87ef0e0fff5a5

  • SHA512

    7316f7ae86e74a23016aec5bd7cb0cd1df5e3fcddad4dec2ead18dc798ad39828ba5b6e9eb20105bc038db71bdc19e1ff2ec7963cdcb21548085b4c0bd8114d4

  • SSDEEP

    196608:U0X0EXGdlirybMgOnkdlirzhdlirybMgOnkdlirAmclo7sdlirybMgOnkdlirzhI:U0XdXMbMrnxbMrnpaxbMrnxbMrn

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\666fb8cc7a72d37b7834809b3a052967.exe
    "C:\Users\Admin\AppData\Local\Temp\666fb8cc7a72d37b7834809b3a052967.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1180
    • C:\Users\Admin\AppData\Local\Temp\666fb8cc7a72d37b7834809b3a052967.exe
      C:\Users\Admin\AppData\Local\Temp\666fb8cc7a72d37b7834809b3a052967.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4040
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\666fb8cc7a72d37b7834809b3a052967.exe" /TN apJZ6MnXc37d /F
        3⤵
        • Creates scheduled task(s)
        PID:1620
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN apJZ6MnXc37d > C:\Users\Admin\AppData\Local\Temp\2Whw1jX.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2628
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN apJZ6MnXc37d
          4⤵
            PID:3420
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 604
          3⤵
          • Program crash
          PID:4712
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 652
          3⤵
          • Program crash
          PID:1760
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 660
          3⤵
          • Program crash
          PID:2348
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 656
          3⤵
          • Program crash
          PID:4372
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 656
          3⤵
          • Program crash
          PID:4804
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 764
          3⤵
          • Program crash
          PID:2768
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 1464
          3⤵
          • Program crash
          PID:2280
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 1956
          3⤵
          • Program crash
          PID:4856
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 2148
          3⤵
          • Program crash
          PID:3908
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 1996
          3⤵
          • Program crash
          PID:3752
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 2156
          3⤵
          • Program crash
          PID:3444
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 2136
          3⤵
          • Program crash
          PID:1568
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 2032
          3⤵
          • Program crash
          PID:2604
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 1976
          3⤵
          • Program crash
          PID:4988
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 1972
          3⤵
          • Program crash
          PID:2624
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 1980
          3⤵
          • Program crash
          PID:3396
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 2112
          3⤵
          • Program crash
          PID:2952
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 648
          3⤵
          • Program crash
          PID:796
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4040 -ip 4040
      1⤵
        PID:4792
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4040 -ip 4040
        1⤵
          PID:4812
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4040 -ip 4040
          1⤵
            PID:416
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4040 -ip 4040
            1⤵
              PID:556
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4040 -ip 4040
              1⤵
                PID:456
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4040 -ip 4040
                1⤵
                  PID:4260
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4040 -ip 4040
                  1⤵
                    PID:3416
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4040 -ip 4040
                    1⤵
                      PID:2360
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4040 -ip 4040
                      1⤵
                        PID:1740
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4040 -ip 4040
                        1⤵
                          PID:2336
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4040 -ip 4040
                          1⤵
                            PID:1620
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 4040 -ip 4040
                            1⤵
                              PID:3480
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 4040 -ip 4040
                              1⤵
                                PID:2396
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 4040 -ip 4040
                                1⤵
                                  PID:1944
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4040 -ip 4040
                                  1⤵
                                    PID:4628
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 4040 -ip 4040
                                    1⤵
                                      PID:4660
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 4040 -ip 4040
                                      1⤵
                                        PID:4804
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 4040 -ip 4040
                                        1⤵
                                          PID:4924

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\2Whw1jX.xml

                                          Filesize

                                          1KB

                                          MD5

                                          66e2a6a5d79fc6685c333f4fff959dbc

                                          SHA1

                                          8a64e820f9a445d181cbe06907a7e571a9f1c0c7

                                          SHA256

                                          73b75af5d60873754948b55b13062c01fa3824ea772a0625435b2c726c495a8a

                                          SHA512

                                          fb231281c8f3120ecf49627373e8e475bfe66551092364a8f0676e038e55100d6fc2d1f0ec132e08fe4320318ae9c3049688d4d419f85c5394a46d9964f8d336

                                        • C:\Users\Admin\AppData\Local\Temp\666fb8cc7a72d37b7834809b3a052967.exe

                                          Filesize

                                          7.8MB

                                          MD5

                                          2f0a3dc4854facd61a5c01be9f63e2bb

                                          SHA1

                                          2adbf2fb35a649f9f4a47c710faae9842cb3fdc1

                                          SHA256

                                          f6239879d21390db617c0f1e09a14d2cd824a1b4cbc96c3f969814674bcad88b

                                          SHA512

                                          f9800d7d515da3ce6e7b596088e437d6930592e9a155f57e30e969302b5106e40cd0723c6754dd4dd86bf6c387cdf899d2b72a7816240183ee8fd13c9027e6ba

                                        • memory/1180-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1180-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1180-2-0x0000000001720000-0x000000000179E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1180-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4040-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4040-18-0x0000000023FC0000-0x000000002403E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4040-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4040-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/4040-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB