Analysis

  • max time kernel
    172s
  • max time network
    201s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 03:51

General

  • Target

    27010167a6050d68b16939199da64df3.exe

  • Size

    1.6MB

  • MD5

    27010167a6050d68b16939199da64df3

  • SHA1

    dedd5b07e9d0e73f9272e4558784c3eed92a8c12

  • SHA256

    5cd6b9b45c0de8039dae8a5734f8f6cedce6d2ddf6671e66c8b10988516c8cf2

  • SHA512

    9dc677c67bd0bb22bd609fd83a981b7e068c754062f25ebceee80151cd72e39c13e7a6e31751849e2be0345a0caeb0531fca3ebee1e0bdb5e16b50875ebe3ffb

  • SSDEEP

    49152:wkSII6HLpmivsScakLz0NGkwjdgjtncakLz0O:wkSJeLpmivsScakcNGkwhgjtncakcO

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\27010167a6050d68b16939199da64df3.exe
    "C:\Users\Admin\AppData\Local\Temp\27010167a6050d68b16939199da64df3.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Users\Admin\AppData\Local\Temp\27010167a6050d68b16939199da64df3.exe
      C:\Users\Admin\AppData\Local\Temp\27010167a6050d68b16939199da64df3.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4100
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\27010167a6050d68b16939199da64df3.exe" /TN aMYATtOZda0c /F
        3⤵
        • Creates scheduled task(s)
        PID:1816
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN aMYATtOZda0c > C:\Users\Admin\AppData\Local\Temp\ie2KzaMZ.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4420
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN aMYATtOZda0c
          4⤵
            PID:4760
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 600
          3⤵
          • Program crash
          PID:1780
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 628
          3⤵
          • Program crash
          PID:4064
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 740
          3⤵
          • Program crash
          PID:3060
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 636
          3⤵
          • Program crash
          PID:3012
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 724
          3⤵
          • Program crash
          PID:372
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 636
          3⤵
          • Program crash
          PID:2052
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 1464
          3⤵
          • Program crash
          PID:3248
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 1628
          3⤵
          • Program crash
          PID:4392
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 1952
          3⤵
          • Program crash
          PID:384
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 1972
          3⤵
          • Program crash
          PID:4288
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 2012
          3⤵
          • Program crash
          PID:4136
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 1924
          3⤵
          • Program crash
          PID:668
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 2140
          3⤵
          • Program crash
          PID:4648
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 2152
          3⤵
          • Program crash
          PID:4144
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 1968
          3⤵
          • Program crash
          PID:4092
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 2152
          3⤵
          • Program crash
          PID:4556
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 2112
          3⤵
          • Program crash
          PID:1740
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4100 -ip 4100
      1⤵
        PID:1328
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4100 -ip 4100
        1⤵
          PID:1928
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4100 -ip 4100
          1⤵
            PID:60
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4100 -ip 4100
            1⤵
              PID:624
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4100 -ip 4100
              1⤵
                PID:1216
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4100 -ip 4100
                1⤵
                  PID:4824
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4100 -ip 4100
                  1⤵
                    PID:532
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4100 -ip 4100
                    1⤵
                      PID:4048
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4100 -ip 4100
                      1⤵
                        PID:5076
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4100 -ip 4100
                        1⤵
                          PID:1512
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4100 -ip 4100
                          1⤵
                            PID:5024
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4100 -ip 4100
                            1⤵
                              PID:2432
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4100 -ip 4100
                              1⤵
                                PID:3052
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4100 -ip 4100
                                1⤵
                                  PID:548
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4100 -ip 4100
                                  1⤵
                                    PID:4820
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4100 -ip 4100
                                    1⤵
                                      PID:2616
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4100 -ip 4100
                                      1⤵
                                        PID:1940

                                      Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            • C:\Users\Admin\AppData\Local\Temp\27010167a6050d68b16939199da64df3.exe

                                              Filesize

                                              1.6MB

                                              MD5

                                              35aee4d679da1b3677f3e487ef3368a1

                                              SHA1

                                              8faea108480c7d30b186dd32a13e92927aa6eb31

                                              SHA256

                                              4a4503bde48319a93b68d3fb77bc72c748b7c47e9df5fe8a2492d868eb523012

                                              SHA512

                                              b2e5ad94dc1a14a7a517eecb1d4735cd0598eb7b030abe6913c4b062c9c08befca40d876f340d94c03d628a37418dc20f4fff40a90a9d48f757c1d35a709d2e3

                                            • C:\Users\Admin\AppData\Local\Temp\ie2KzaMZ.xml

                                              Filesize

                                              1KB

                                              MD5

                                              6c54a246cb847c877168dfed1393c201

                                              SHA1

                                              914b9579790ff4dcfe79a9b47ea6aab0a00346c6

                                              SHA256

                                              c35558349b6809c9005053095ae011072c3bd9f6519436506c4838f4cb49bc88

                                              SHA512

                                              93ec355c7c36518bb2e3b8f4f7be476deb7bf83fd6aabb823995a8869b04d1e2d3591401ca28c2cddede9f36f879e16cf23b07411c269460c757b624d4acf3ff

                                            • memory/4100-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/4100-16-0x0000000001730000-0x00000000017AE000-memory.dmp

                                              Filesize

                                              504KB

                                            • memory/4100-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/4100-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                              Filesize

                                              364KB

                                            • memory/4100-32-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/4472-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/4472-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/4472-3-0x00000000017A0000-0x000000000181E000-memory.dmp

                                              Filesize

                                              504KB

                                            • memory/4472-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                              Filesize

                                              428KB