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Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/02/2024, 19:19

General

  • Target

    a28c9626ea1ed08a37e46574e3e8ed2b.exe

  • Size

    1003KB

  • MD5

    a28c9626ea1ed08a37e46574e3e8ed2b

  • SHA1

    2b44afa610a8083a2d2d13c5362e9862b67811c1

  • SHA256

    58781c51e77a6d684933840d47097d61450c82434ea18a1e6f32b375fbdb38d4

  • SHA512

    de3baf0941532fa1b6e0c3b9ccd5d767f2e6203b0c8d068d8125928cc9af920dd729cd9796891ea204140f92c8eb72466eabb9477b380b1239ec07367dc7ceaf

  • SSDEEP

    12288:y+wPb7BGrZQswdWDxkmeljizoCAX9jFQhPriyKhjYIiFskef+h1u/F2PppDLbh6f:J63dWlveiejFmLKAPQ+h1wkRRvid

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 1 IoCs
  • 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\a28c9626ea1ed08a37e46574e3e8ed2b.exe
    "C:\Users\Admin\AppData\Local\Temp\a28c9626ea1ed08a37e46574e3e8ed2b.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Users\Admin\AppData\Local\Temp\a28c9626ea1ed08a37e46574e3e8ed2b.exe
      C:\Users\Admin\AppData\Local\Temp\a28c9626ea1ed08a37e46574e3e8ed2b.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:428
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\a28c9626ea1ed08a37e46574e3e8ed2b.exe" /TN FdDnJFlA1a56 /F
        3⤵
        • Creates scheduled task(s)
        PID:1128
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN FdDnJFlA1a56 > C:\Users\Admin\AppData\Local\Temp\lvlGK.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4400
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN FdDnJFlA1a56
          4⤵
            PID:2276
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 600
          3⤵
          • Program crash
          PID:4088
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 608
          3⤵
          • Program crash
          PID:2788
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 724
          3⤵
          • Program crash
          PID:3724
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 744
          3⤵
          • Program crash
          PID:860
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 604
          3⤵
          • Program crash
          PID:4720
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 820
          3⤵
          • Program crash
          PID:3240
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 1460
          3⤵
          • Program crash
          PID:3108
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 1740
          3⤵
          • Program crash
          PID:884
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 2144
          3⤵
          • Program crash
          PID:732
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 1924
          3⤵
          • Program crash
          PID:1272
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 1912
          3⤵
          • Program crash
          PID:4820
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 2104
          3⤵
          • Program crash
          PID:2876
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 1924
          3⤵
          • Program crash
          PID:2992
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 2156
          3⤵
          • Program crash
          PID:4564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 2112
          3⤵
          • Program crash
          PID:5108
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 2156
          3⤵
          • Program crash
          PID:2536
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 2144
          3⤵
          • Program crash
          PID:3220
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 792
          3⤵
          • Program crash
          PID:4380
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 428 -ip 428
      1⤵
        PID:2452
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 428 -ip 428
        1⤵
          PID:1612
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 428 -ip 428
          1⤵
            PID:2816
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 428 -ip 428
            1⤵
              PID:3988
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 428 -ip 428
              1⤵
                PID:4808
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 428 -ip 428
                1⤵
                  PID:3736
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 428 -ip 428
                  1⤵
                    PID:3744
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 428 -ip 428
                    1⤵
                      PID:3416
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 428 -ip 428
                      1⤵
                        PID:3116
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 428 -ip 428
                        1⤵
                          PID:4804
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 428 -ip 428
                          1⤵
                            PID:384
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 428 -ip 428
                            1⤵
                              PID:4276
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 428 -ip 428
                              1⤵
                                PID:404
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 428 -ip 428
                                1⤵
                                  PID:4748
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 428 -ip 428
                                  1⤵
                                    PID:4604
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 428 -ip 428
                                    1⤵
                                      PID:4860
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 428 -ip 428
                                      1⤵
                                        PID:2772
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 428 -ip 428
                                        1⤵
                                          PID:2592

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\a28c9626ea1ed08a37e46574e3e8ed2b.exe

                                          Filesize

                                          1003KB

                                          MD5

                                          675a0080e1f3a72e382421f737d0c67a

                                          SHA1

                                          875f316d30206bfd34b16f1bbdea2500c5963518

                                          SHA256

                                          b387f5d05bdea032d0382142275f8b213c5bfe5bff6eedcec4510766d1f30538

                                          SHA512

                                          6a385cb976c7366a6cf4e736b4d7b0158eacfb98afcbcfa8a8f965c10ad383103bb4845294b602ec8eb77dfab5b22b7788d62bef9c75bec65e1a54941ceee6c9

                                        • C:\Users\Admin\AppData\Local\Temp\lvlGK.xml

                                          Filesize

                                          1KB

                                          MD5

                                          45e145c0a25d977589003fde661de21d

                                          SHA1

                                          5fbeef4c452bbba8bf2c06a2d9d692cef67b50fb

                                          SHA256

                                          541651cb756ca2f01d29a4103c5ec30385d45cab33d594a74df1d4dab0d7465b

                                          SHA512

                                          73b5c45bb8d8dd72ceba59e8f09094e3e875fab6a0525a9c040998afadf345c87239437c7e8b2c419eaa68cbb9db2441b6774bcb47b194853ac8cef8d7eafa1f

                                        • memory/428-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/428-16-0x00000000250A0000-0x000000002511E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/428-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/428-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/428-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1124-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1124-2-0x0000000001790000-0x000000000180E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1124-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1124-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB