Analysis

  • max time kernel
    144s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/02/2024, 22:41

General

  • Target

    87da907861baa9cd40eb52399c83af2b.exe

  • Size

    3.9MB

  • MD5

    87da907861baa9cd40eb52399c83af2b

  • SHA1

    a7b5129b36afd2054943906ad0bdc172456ad946

  • SHA256

    c4cd09f6e9ca998e036fb941311c4bfff830417a5ed41bed11b2701c10d0c805

  • SHA512

    5edca0c8d00d4124d3994868d66709e6002d1dc16cac5166cb7d5eb2a7e4e9cd6be43603d91aa1e03ec5e94063a654d79cf277b1f0200abe5df0818c2a53fea2

  • SSDEEP

    98304:xQX3r3MTAmHHA9zyULG+ZIDLWY9QA9zyULG+H5ZECD5RqqLY8A9zyULG+ZIDLWYt:q3r3M3gzLqvqY/zLqAe0RTLYZzLqvqYy

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 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\87da907861baa9cd40eb52399c83af2b.exe
    "C:\Users\Admin\AppData\Local\Temp\87da907861baa9cd40eb52399c83af2b.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4132
    • C:\Users\Admin\AppData\Local\Temp\87da907861baa9cd40eb52399c83af2b.exe
      C:\Users\Admin\AppData\Local\Temp\87da907861baa9cd40eb52399c83af2b.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\87da907861baa9cd40eb52399c83af2b.exe" /TN Jdf19jEI5ce2 /F
        3⤵
        • Creates scheduled task(s)
        PID:816
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN Jdf19jEI5ce2 > C:\Users\Admin\AppData\Local\Temp\Uio0WAN.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1664
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN Jdf19jEI5ce2
          4⤵
            PID:3632
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 616
          3⤵
          • Program crash
          PID:5276
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 604
          3⤵
          • Program crash
          PID:3624
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 640
          3⤵
          • Program crash
          PID:4556
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 732
          3⤵
          • Program crash
          PID:1108
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 732
          3⤵
          • Program crash
          PID:2528
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 800
          3⤵
          • Program crash
          PID:2696
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1464
          3⤵
          • Program crash
          PID:2668
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1916
          3⤵
          • Program crash
          PID:1684
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 2148
          3⤵
          • Program crash
          PID:4724
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1932
          3⤵
          • Program crash
          PID:3224
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1920
          3⤵
          • Program crash
          PID:2756
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1932
          3⤵
          • Program crash
          PID:4704
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1972
          3⤵
          • Program crash
          PID:1588
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1948
          3⤵
          • Program crash
          PID:1556
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1944
          3⤵
          • Program crash
          PID:3380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1916
          3⤵
          • Program crash
          PID:4692
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1952
          3⤵
          • Program crash
          PID:4984
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 712
          3⤵
          • Program crash
          PID:3736
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1656 -ip 1656
      1⤵
        PID:548
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1656 -ip 1656
        1⤵
          PID:5624
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1656 -ip 1656
          1⤵
            PID:820
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1656 -ip 1656
            1⤵
              PID:4084
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1656 -ip 1656
              1⤵
                PID:1904
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1656 -ip 1656
                1⤵
                  PID:1144
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1656 -ip 1656
                  1⤵
                    PID:6036
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1656 -ip 1656
                    1⤵
                      PID:4932
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1656 -ip 1656
                      1⤵
                        PID:940
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1656 -ip 1656
                        1⤵
                          PID:4820
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1656 -ip 1656
                          1⤵
                            PID:1736
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1656 -ip 1656
                            1⤵
                              PID:2284
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1656 -ip 1656
                              1⤵
                                PID:4640
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1656 -ip 1656
                                1⤵
                                  PID:1548
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1656 -ip 1656
                                  1⤵
                                    PID:5784
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1656 -ip 1656
                                    1⤵
                                      PID:3088
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1656 -ip 1656
                                      1⤵
                                        PID:760
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1656 -ip 1656
                                        1⤵
                                          PID:1796

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\87da907861baa9cd40eb52399c83af2b.exe

                                          Filesize

                                          688KB

                                          MD5

                                          7ebdaa83bcea0d5812c2374c6d173389

                                          SHA1

                                          6fdbe38b55b2985597b8b0981c8a21bd626bf39d

                                          SHA256

                                          b4bf8bf2b5ebfcf3b698203e5be992fb8dfaf4da88a3b85e7452d3599c8c3479

                                          SHA512

                                          2cba1c98356b927975589597f2911a3b4b0c36ed6ba0e90ed5841c666f529eee1e8e485571771334a95a9da58a737e798f8803383b46aac2206b497de3d9205c

                                        • C:\Users\Admin\AppData\Local\Temp\Uio0WAN.xml

                                          Filesize

                                          1KB

                                          MD5

                                          a66764ddc495b1d636829c5e4f21077b

                                          SHA1

                                          0ed04b5a3015bb719e451d703269234c6071a376

                                          SHA256

                                          9b3eb3766e8ad48473b844e895e73f91eb7791c85ebd65f40290a8a94a57468d

                                          SHA512

                                          ee251e865b605c5887a95f536d492a910c7263937fa3646a9053c5f57571d3f4cf2e402d4d04be8ad6373d85456ea6068d3555c47c37f91bfe52874a59e0ec8b

                                        • memory/1656-15-0x0000000023FE0000-0x000000002405E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1656-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/1656-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1656-17-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1656-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4132-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4132-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4132-7-0x00000000018C0000-0x000000000193E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4132-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB