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Analysis

  • max time kernel
    124s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2023, 13:51

General

  • Target

    af84772f95f77ec47a16dc474fdb9ad4.exe

  • Size

    1.6MB

  • MD5

    af84772f95f77ec47a16dc474fdb9ad4

  • SHA1

    02b7ce483f0e8b44be2f65bcc0cdc1859832c4d0

  • SHA256

    eeb381d77c62785ed61b08ee1172fc2ddb73504259ea4caa1a10df82ffb4fb76

  • SHA512

    6d6ad426534611157dc45c2f546744c3dfd566ef08e7176b3d7b133970c2d21fce4d05fc60e1d8803973c7c51efcb6c2d0a7a5c69c0ec6d7b357d7ecb10bb03d

  • SSDEEP

    49152:kjeVzRZHcakLz0omv7XeFKWD4baxacLcakLz0O:kjKzRZHcakcomv7X0D4baxa8cakcO

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 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\af84772f95f77ec47a16dc474fdb9ad4.exe
    "C:\Users\Admin\AppData\Local\Temp\af84772f95f77ec47a16dc474fdb9ad4.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3856
    • C:\Users\Admin\AppData\Local\Temp\af84772f95f77ec47a16dc474fdb9ad4.exe
      C:\Users\Admin\AppData\Local\Temp\af84772f95f77ec47a16dc474fdb9ad4.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:736
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 648
        3⤵
        • Program crash
        PID:976
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 656
        3⤵
        • Program crash
        PID:548
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 632
        3⤵
        • Program crash
        PID:388
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 752
        3⤵
        • Program crash
        PID:1548
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 760
        3⤵
        • Program crash
        PID:2924
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 1464
        3⤵
        • Program crash
        PID:2920
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 1920
        3⤵
        • Program crash
        PID:3236
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 2144
        3⤵
        • Program crash
        PID:2408
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 1932
        3⤵
        • Program crash
        PID:3536
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 1980
        3⤵
        • Program crash
        PID:4908
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 1988
        3⤵
        • Program crash
        PID:1964
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 1976
        3⤵
        • Program crash
        PID:2808
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 2168
        3⤵
        • Program crash
        PID:5044
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 1988
        3⤵
        • Program crash
        PID:4512
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 1920
        3⤵
        • Program crash
        PID:4656
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 628
        3⤵
        • Program crash
        PID:408
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\af84772f95f77ec47a16dc474fdb9ad4.exe" /TN 0Su7L8S745c1 /F
    1⤵
    • Creates scheduled task(s)
    PID:948
  • C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c schtasks.exe /Query /XML /TN 0Su7L8S745c1 > C:\Users\Admin\AppData\Local\Temp\LsyLG.xml
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Query /XML /TN 0Su7L8S745c1
      2⤵
        PID:4364
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 736 -ip 736
      1⤵
        PID:2956
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 604
        1⤵
        • Program crash
        PID:1088
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 736 -ip 736
        1⤵
          PID:212
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 736 -ip 736
          1⤵
            PID:5040
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 736 -ip 736
            1⤵
              PID:4996
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 736 -ip 736
              1⤵
                PID:1360
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 736 -ip 736
                1⤵
                  PID:3780
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 736 -ip 736
                  1⤵
                    PID:4224
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 736 -ip 736
                    1⤵
                      PID:3620
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 736 -ip 736
                      1⤵
                        PID:352
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 736 -ip 736
                        1⤵
                          PID:1476
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 736 -ip 736
                          1⤵
                            PID:3760
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 736 -ip 736
                            1⤵
                              PID:1864
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 736 -ip 736
                              1⤵
                                PID:2860
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 736 -ip 736
                                1⤵
                                  PID:1696
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 736 -ip 736
                                  1⤵
                                    PID:4804
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 736 -ip 736
                                    1⤵
                                      PID:3380
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 736 -ip 736
                                      1⤵
                                        PID:2992

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

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

                                        Filesize

                                        1KB

                                        MD5

                                        fa0da0bf8e2eb4e6c175ae2c7f09e71b

                                        SHA1

                                        d5e7a5c7b579aae64c055f044457a718209a8f6d

                                        SHA256

                                        d8954269819558c831ffe3c7e3d57ed53104f7a9a2ab5a06e763cff0840c21a0

                                        SHA512

                                        4cc62b05965731a9e87ed5870e09be9b7b501d1c7d28b742895cd61e1cc25d8bcced995a6f4379857f8eb3ced9e167cb0c0503af0cfc8ad8ef583bfe5be0507a

                                      • C:\Users\Admin\AppData\Local\Temp\af84772f95f77ec47a16dc474fdb9ad4.exe

                                        Filesize

                                        256KB

                                        MD5

                                        a6365e818c4fd7cb93868abf8f302cc6

                                        SHA1

                                        7c4c2ba8af6433c4d5bf829f26ecda495aaccc5c

                                        SHA256

                                        73f8c2370d5c2e11ff13ac01c4f8aa542e6ccc579700f02fef0de29f94fb1247

                                        SHA512

                                        9ee8a0bb6f03be0a435cc68219a64a4c4d5b547162a0386d8eaf6feb22f392d7cc201798ed81e2db90dfa11dcfad6409d88f2727f71958d7b79fc438e4729309

                                      • memory/736-16-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/736-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                        Filesize

                                        364KB

                                      • memory/736-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/736-14-0x0000000024030000-0x00000000240AE000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/736-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/3856-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/3856-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/3856-7-0x0000000025010000-0x000000002508E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/3856-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB