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Analysis

  • max time kernel
    124s
  • max time network
    133s
  • 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, 13:34

General

  • Target

    a68802a9717cb157a1596f07d9f8e8dc.exe

  • Size

    3.9MB

  • MD5

    a68802a9717cb157a1596f07d9f8e8dc

  • SHA1

    e149a3e8585769b42814a892cae844dd6803bc6e

  • SHA256

    e545ca0f2045a7ecdd5fe7a6b888fed29c19aa53eddeb4d874a33e59cbbd502c

  • SHA512

    5b78cb5b061a985d28e13418d69263a603852ac74f6f68bf2abcda97c7f10ce07f10704604bd236cc83c44434f8371f4402e07a135559b22ed35865d2550dfad

  • SSDEEP

    98304:a3tiSyUk0m0XVcakcibiqhRIAjhZiFUo8c7OgCnpmcakcibiqhXFEe2CXhtcakcw:adirUHXVdlirPFjhKUo8tgCcdlirR7Do

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\a68802a9717cb157a1596f07d9f8e8dc.exe
    "C:\Users\Admin\AppData\Local\Temp\a68802a9717cb157a1596f07d9f8e8dc.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4488
    • C:\Users\Admin\AppData\Local\Temp\a68802a9717cb157a1596f07d9f8e8dc.exe
      C:\Users\Admin\AppData\Local\Temp\a68802a9717cb157a1596f07d9f8e8dc.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:724
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 648
        3⤵
        • Program crash
        PID:4468
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 656
        3⤵
        • Program crash
        PID:1448
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 736
        3⤵
        • Program crash
        PID:4312
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 756
        3⤵
        • Program crash
        PID:1696
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 764
        3⤵
        • Program crash
        PID:1308
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 1464
        3⤵
        • Program crash
        PID:5076
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 1924
        3⤵
        • Program crash
        PID:4884
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 2144
        3⤵
        • Program crash
        PID:764
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 2104
        3⤵
        • Program crash
        PID:4056
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 1940
        3⤵
        • Program crash
        PID:3504
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 2184
        3⤵
        • Program crash
        PID:2796
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 2104
        3⤵
        • Program crash
        PID:3116
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 2208
        3⤵
        • Program crash
        PID:3616
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 2108
        3⤵
        • Program crash
        PID:4772
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 1940
        3⤵
        • Program crash
        PID:2824
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 2224
        3⤵
        • Program crash
        PID:4648
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 620
        3⤵
        • Program crash
        PID:2128
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\a68802a9717cb157a1596f07d9f8e8dc.exe" /TN 0Su7L8S745c1 /F
    1⤵
    • Creates scheduled task(s)
    PID:216
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Query /XML /TN 0Su7L8S745c1
    1⤵
      PID:3172
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 724 -ip 724
      1⤵
        PID:752
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 724 -s 608
        1⤵
        • Program crash
        PID:4128
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 0Su7L8S745c1 > C:\Users\Admin\AppData\Local\Temp\rosohW3DB.xml
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:372
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 724 -ip 724
        1⤵
          PID:1060
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 724 -ip 724
          1⤵
            PID:3184
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 724 -ip 724
            1⤵
              PID:2476
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 724 -ip 724
              1⤵
                PID:952
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 724 -ip 724
                1⤵
                  PID:1844
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 724 -ip 724
                  1⤵
                    PID:4396
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 724 -ip 724
                    1⤵
                      PID:964
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 724 -ip 724
                      1⤵
                        PID:4400
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 624 -p 724 -ip 724
                        1⤵
                          PID:3260
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 652 -p 724 -ip 724
                          1⤵
                            PID:3976
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 724 -ip 724
                            1⤵
                              PID:4452
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 692 -p 724 -ip 724
                              1⤵
                                PID:2760
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 684 -p 724 -ip 724
                                1⤵
                                  PID:2632
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 728 -p 724 -ip 724
                                  1⤵
                                    PID:4940
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 696 -p 724 -ip 724
                                    1⤵
                                      PID:4564
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 712 -p 724 -ip 724
                                      1⤵
                                        PID:4468
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 696 -p 724 -ip 724
                                        1⤵
                                          PID:980

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\a68802a9717cb157a1596f07d9f8e8dc.exe

                                          Filesize

                                          65KB

                                          MD5

                                          1dd641815b3ce1a2fe89d08c6a30bda9

                                          SHA1

                                          d45091ebc85382978124a74365ae37615d39f675

                                          SHA256

                                          d0be549c9e2878db829f374567307f3579fb3b124033dbe191dcf04fc0ee7ba3

                                          SHA512

                                          a2a0df6a1cb81682cff8613841f023b34dd73cffae8c740a3103179bdba6d8935fb9fb6aa4a12ba9395de364b08b3b796d8d4af989b35fb14fbe546b2eb55f36

                                        • C:\Users\Admin\AppData\Local\Temp\rosohW3DB.xml

                                          Filesize

                                          1KB

                                          MD5

                                          2dc4d48253696811e949bdf7482dfb9d

                                          SHA1

                                          61ad882a73c9d11fa965e3fc453cbff7a8f54b68

                                          SHA256

                                          20ff32dbf9b4b91b0f009c1a3b839d10c44664588ecda64c1b86ba290d3d49a3

                                          SHA512

                                          05eea3b4cdce8bad94679718c113cfd35e9875120a0e9585cb1dc13b14d0342a4097567967510c190b3c4f69bf1f19c7a739522fa609291486b6f1d843385f6f

                                        • memory/724-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/724-17-0x0000000024FF0000-0x000000002506E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/724-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/724-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/724-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4488-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4488-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4488-5-0x0000000001730000-0x00000000017AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4488-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB