Analysis

  • max time kernel
    143s
  • max time network
    151s
  • 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, 20:16

General

  • Target

    a2a7f5e1b0ecc45acab55ba6da19d437.exe

  • Size

    3.9MB

  • MD5

    a2a7f5e1b0ecc45acab55ba6da19d437

  • SHA1

    853b64beb57098256cfb040e93ff333d03b9d8b0

  • SHA256

    5dbf593be46696781e645312f220b36cbe16a49f39e5b98597e362e04cfa6e51

  • SHA512

    f55fbdecc250eeba529effd61ec4bee24655890795418327e0a84f26ecf5b4c446091d69f18a4ad3d76bc15a45ff20bcfa1e7c6ff811907d947b0a62d1090cc2

  • SSDEEP

    98304:L7JEnp5cakcibiqhtNR0VMNFcakcibiqhbUUXyFuJ8PhOcakcibiqhtNR0VMNFcH:LCp5dlirNR6MNFdlirtXyFuJ8pOdlirK

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\a2a7f5e1b0ecc45acab55ba6da19d437.exe
    "C:\Users\Admin\AppData\Local\Temp\a2a7f5e1b0ecc45acab55ba6da19d437.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:5076
    • C:\Users\Admin\AppData\Local\Temp\a2a7f5e1b0ecc45acab55ba6da19d437.exe
      C:\Users\Admin\AppData\Local\Temp\a2a7f5e1b0ecc45acab55ba6da19d437.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2868
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\a2a7f5e1b0ecc45acab55ba6da19d437.exe" /TN 9SU8iJu528ae /F
        3⤵
        • Creates scheduled task(s)
        PID:2248
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 9SU8iJu528ae > C:\Users\Admin\AppData\Local\Temp\Yqv1m3fih.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1516
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN 9SU8iJu528ae
          4⤵
            PID:2576
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 604
          3⤵
          • Program crash
          PID:1900
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 632
          3⤵
          • Program crash
          PID:2800
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 640
          3⤵
          • Program crash
          PID:1528
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 712
          3⤵
          • Program crash
          PID:5080
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 740
          3⤵
          • Program crash
          PID:1008
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 784
          3⤵
          • Program crash
          PID:1360
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 1472
          3⤵
          • Program crash
          PID:3228
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 1864
          3⤵
          • Program crash
          PID:2908
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 2144
          3⤵
          • Program crash
          PID:3940
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 1492
          3⤵
          • Program crash
          PID:4108
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 2148
          3⤵
          • Program crash
          PID:3796
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 1864
          3⤵
          • Program crash
          PID:2980
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 1872
          3⤵
          • Program crash
          PID:2040
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 2204
          3⤵
          • Program crash
          PID:2316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 1988
          3⤵
          • Program crash
          PID:2436
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 2140
          3⤵
          • Program crash
          PID:1460
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 1984
          3⤵
          • Program crash
          PID:2960
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 624
          3⤵
          • Program crash
          PID:1204
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2868 -ip 2868
      1⤵
        PID:1944
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2868 -ip 2868
        1⤵
          PID:224
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2868 -ip 2868
          1⤵
            PID:4884
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2868 -ip 2868
            1⤵
              PID:4352
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2868 -ip 2868
              1⤵
                PID:1384
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2868 -ip 2868
                1⤵
                  PID:3704
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2868 -ip 2868
                  1⤵
                    PID:2540
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2868 -ip 2868
                    1⤵
                      PID:3000
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2868 -ip 2868
                      1⤵
                        PID:2192
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2868 -ip 2868
                        1⤵
                          PID:2944
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2868 -ip 2868
                          1⤵
                            PID:3032
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2868 -ip 2868
                            1⤵
                              PID:4688
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2868 -ip 2868
                              1⤵
                                PID:4532
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2868 -ip 2868
                                1⤵
                                  PID:2464
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2868 -ip 2868
                                  1⤵
                                    PID:704
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2868 -ip 2868
                                    1⤵
                                      PID:1268
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2868 -ip 2868
                                      1⤵
                                        PID:3404
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2868 -ip 2868
                                        1⤵
                                          PID:3804

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

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                                              Downloads

                                              • C:\Users\Admin\AppData\Local\Temp\Yqv1m3fih.xml

                                                Filesize

                                                1KB

                                                MD5

                                                3115187eba95900991f1b47c80631854

                                                SHA1

                                                3b128096ba739e3f51fd6922c14f5583f9f1b169

                                                SHA256

                                                56b6069a9c7b2019faa15434fd7176897a6e65ade33a41f6ef819af3695bc8dd

                                                SHA512

                                                c780971f8ec1126747d4a7af2911523c57376f62cf7d2de89c7c9231afd5aa9fa13889335b102817f53778c69caaeb682e858cb241c684e31947b9c438f7622b

                                              • C:\Users\Admin\AppData\Local\Temp\a2a7f5e1b0ecc45acab55ba6da19d437.exe

                                                Filesize

                                                1.4MB

                                                MD5

                                                dfb0de39a1512d2d400fe29c0bbf4c70

                                                SHA1

                                                c676d1ab732758b004727217417b7f9a2bc86fcd

                                                SHA256

                                                4427ff696f0fe3be34f4ecb081018039d788717dd87fc6f58d8adcd92445c13b

                                                SHA512

                                                18ba5c7156dc2c2b647e653aff822c539333898f47ee503ddbc9d27347fffe4cd399320b7ed3ecede60b4087d74572170c96ca07018fdf9fe99381d843cef964

                                              • memory/2868-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/2868-16-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/2868-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/2868-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                                Filesize

                                                364KB

                                              • memory/2868-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/5076-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/5076-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/5076-3-0x00000000260B0000-0x000000002612E000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/5076-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB