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Analysis

  • max time kernel
    143s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2023, 22:38

General

  • Target

    05d6d24c4d8cb94b46e872777e1234d2.exe

  • Size

    821KB

  • MD5

    05d6d24c4d8cb94b46e872777e1234d2

  • SHA1

    3549cbfdc2762624a91388b43ddf7955744de774

  • SHA256

    a339d8b32f5ad16cffc15277c9db7e582febfd126be4766ef4138bc9b4ca7746

  • SHA512

    08072f214e702cf2172580aa384d3bf4d9d39b3a97843f895537ad5ba7211bb398ac59d62f0aede8c1b0846c55a5a7f87ff123b6cd7f4003e4173eb8e699060b

  • SSDEEP

    24576:QVE3KvgttOULSFrSrFiT5M2acjukL2CDYO:YE3KvAYuSFr8FiTa2acakLz0O

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\05d6d24c4d8cb94b46e872777e1234d2.exe
    "C:\Users\Admin\AppData\Local\Temp\05d6d24c4d8cb94b46e872777e1234d2.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4808
    • C:\Users\Admin\AppData\Local\Temp\05d6d24c4d8cb94b46e872777e1234d2.exe
      C:\Users\Admin\AppData\Local\Temp\05d6d24c4d8cb94b46e872777e1234d2.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3032
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 616
        3⤵
        • Program crash
        PID:3984
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 628
        3⤵
        • Program crash
        PID:3044
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 740
        3⤵
        • Program crash
        PID:4316
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 660
        3⤵
        • Program crash
        PID:1600
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 752
        3⤵
        • Program crash
        PID:3584
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 768
        3⤵
        • Program crash
        PID:1184
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 1456
        3⤵
        • Program crash
        PID:1756
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 1908
        3⤵
        • Program crash
        PID:4704
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 2144
        3⤵
        • Program crash
        PID:4592
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 2096
        3⤵
        • Program crash
        PID:1164
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 1924
        3⤵
        • Program crash
        PID:3116
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 2128
        3⤵
        • Program crash
        PID:4820
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 1932
        3⤵
        • Program crash
        PID:5084
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 1976
        3⤵
        • Program crash
        PID:3564
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 2140
        3⤵
        • Program crash
        PID:3112
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 2172
        3⤵
        • Program crash
        PID:4308
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 1960
        3⤵
        • Program crash
        PID:3472
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 664
        3⤵
        • Program crash
        PID:3144
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\05d6d24c4d8cb94b46e872777e1234d2.exe" /TN 0Su7L8S745c1 /F
    1⤵
    • Creates scheduled task(s)
    PID:1592
  • C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c schtasks.exe /Query /XML /TN 0Su7L8S745c1 > C:\Users\Admin\AppData\Local\Temp\R81rbk.xml
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1072
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Query /XML /TN 0Su7L8S745c1
      2⤵
        PID:2508
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3032 -ip 3032
      1⤵
        PID:4304
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3032 -ip 3032
        1⤵
          PID:912
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3032 -ip 3032
          1⤵
            PID:2448
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3032 -ip 3032
            1⤵
              PID:1908
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3032 -ip 3032
              1⤵
                PID:1020
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3032 -ip 3032
                1⤵
                  PID:1740
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 3032 -ip 3032
                  1⤵
                    PID:4040
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 3032 -ip 3032
                    1⤵
                      PID:4020
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 3032 -ip 3032
                      1⤵
                        PID:3948
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 648 -p 3032 -ip 3032
                        1⤵
                          PID:4988
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 628 -p 3032 -ip 3032
                          1⤵
                            PID:2124
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 656 -p 3032 -ip 3032
                            1⤵
                              PID:3400
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 652 -p 3032 -ip 3032
                              1⤵
                                PID:1608
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 652 -p 3032 -ip 3032
                                1⤵
                                  PID:2328
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 3032 -ip 3032
                                  1⤵
                                    PID:1196
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 648 -p 3032 -ip 3032
                                    1⤵
                                      PID:4520
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 648 -p 3032 -ip 3032
                                      1⤵
                                        PID:4888
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 616 -p 3032 -ip 3032
                                        1⤵
                                          PID:4976

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\05d6d24c4d8cb94b46e872777e1234d2.exe

                                          Filesize

                                          146KB

                                          MD5

                                          835a5655cbd0027fc1f14992dd07cc51

                                          SHA1

                                          e49aa2dac1b0961e79478b7221233ac99f792454

                                          SHA256

                                          68a78bbbc1ac391ce0641b2e2f06ebe5c77069bf36fde2233f3c4985b4290aa3

                                          SHA512

                                          ad880b3dfebf8a00be6a5b9ec662db5b4d9c92769aaf2eee8be80df1621ddbfd99ac6cb3f7b7fc5fb6314fcb6be4f7fab8bc81a9de37deed254c3652279a02e1

                                        • C:\Users\Admin\AppData\Local\Temp\R81rbk.xml

                                          Filesize

                                          1KB

                                          MD5

                                          dd533c79cf1f2dc567e8101458407799

                                          SHA1

                                          542a537dc81da4de71f041500aed2edb3712553f

                                          SHA256

                                          e998955aa5b3e377fc7a1048134e1586335a3a3da9ed170c3dd697a580dc2ad6

                                          SHA512

                                          be4f64376953e8fdd3830d2b012d885d0ef66a17e11b58dfadf3e08c1e6b029a872e829da4859f88f9d8a7e2d274fb054ac616afa33849a670dd68db57491b67

                                        • memory/3032-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3032-17-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3032-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/3032-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3032-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4808-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4808-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4808-6-0x0000000001720000-0x000000000179E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4808-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB