Analysis

  • max time kernel
    176s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2023 16:52

General

  • Target

    f893a7a4e187b759b45f593ec6279fa0.exe

  • Size

    3.2MB

  • MD5

    f893a7a4e187b759b45f593ec6279fa0

  • SHA1

    c2cf49e1a07327725c7c85d093504c80a48ad69a

  • SHA256

    f0a96391348bf3b2430f9e070bb4bdff7b6f6873b4e2e44e1bfc92804fc10156

  • SHA512

    2a529a7b8d3cda20f06e359be0a6dc6f368ef7bb936a3d0a4494f2381523864066466261ad97bada79d79ffb333450630ef4aedee0e4da0042a881ee28e99da3

  • SSDEEP

    98304:3msw4e/hxKcakcLjHvnk/CkT+66UDcakcdzFp8a7GG9cakcLjHvnk/CkT+66UDcp:WqkhcdlLz8FH66dlL7PdlLz8FH66dlO

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\f893a7a4e187b759b45f593ec6279fa0.exe
    "C:\Users\Admin\AppData\Local\Temp\f893a7a4e187b759b45f593ec6279fa0.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3648
    • C:\Users\Admin\AppData\Local\Temp\f893a7a4e187b759b45f593ec6279fa0.exe
      C:\Users\Admin\AppData\Local\Temp\f893a7a4e187b759b45f593ec6279fa0.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\f893a7a4e187b759b45f593ec6279fa0.exe" /TN 91YuFL8m6860 /F
        3⤵
        • Creates scheduled task(s)
        PID:1484
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 91YuFL8m6860 > C:\Users\Admin\AppData\Local\Temp\VPhUvflEz.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3544
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN 91YuFL8m6860
          4⤵
            PID:3532
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 616
          3⤵
          • Program crash
          PID:4740
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 604
          3⤵
          • Program crash
          PID:896
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 636
          3⤵
          • Program crash
          PID:2608
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 736
          3⤵
          • Program crash
          PID:4184
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 756
          3⤵
          • Program crash
          PID:4564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 724
          3⤵
          • Program crash
          PID:1096
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 1492
          3⤵
          • Program crash
          PID:1500
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 1860
          3⤵
          • Program crash
          PID:1588
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 2144
          3⤵
          • Program crash
          PID:3604
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 1932
          3⤵
          • Program crash
          PID:4424
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 2004
          3⤵
          • Program crash
          PID:3000
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 1948
          3⤵
          • Program crash
          PID:4908
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 2104
          3⤵
          • Program crash
          PID:4848
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 1968
          3⤵
          • Program crash
          PID:2104
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 2124
          3⤵
          • Program crash
          PID:4116
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 2160
          3⤵
          • Program crash
          PID:4364
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 608
          3⤵
          • Program crash
          PID:4560
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2604 -ip 2604
      1⤵
        PID:924
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2604 -ip 2604
        1⤵
          PID:4700
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2604 -ip 2604
          1⤵
            PID:1180
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2604 -ip 2604
            1⤵
              PID:3140
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2604 -ip 2604
              1⤵
                PID:4312
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2604 -ip 2604
                1⤵
                  PID:5008
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2604 -ip 2604
                  1⤵
                    PID:2084
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2604 -ip 2604
                    1⤵
                      PID:844
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2604 -ip 2604
                      1⤵
                        PID:3116
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2604 -ip 2604
                        1⤵
                          PID:896
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2604 -ip 2604
                          1⤵
                            PID:2760
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2604 -ip 2604
                            1⤵
                              PID:5008
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2604 -ip 2604
                              1⤵
                                PID:3772
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2604 -ip 2604
                                1⤵
                                  PID:3936
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2604 -ip 2604
                                  1⤵
                                    PID:1272
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2604 -ip 2604
                                    1⤵
                                      PID:4444
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 2604 -ip 2604
                                      1⤵
                                        PID:4376

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

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

                                        Filesize

                                        1KB

                                        MD5

                                        e27fb308104013ba6416a32357402806

                                        SHA1

                                        8588b25ffccc7aff3bf5fef1a22ab3b7b6a2a62c

                                        SHA256

                                        8b4dea4e563d4e4a7f54e55230c4b3744c251cf1e43683a11022c5b5353f0ffe

                                        SHA512

                                        19cdcb1106eb0e08b811a29fd5913d453b30ea8bfc77c51e39c22ea8734bbb5cefa8befabeddb8d3c86f8c71eba48ff12f5bb6dcb3c7dad89be2e81ddb11e997

                                      • C:\Users\Admin\AppData\Local\Temp\f893a7a4e187b759b45f593ec6279fa0.exe

                                        Filesize

                                        3.2MB

                                        MD5

                                        14f484cfc26da51b1366f72e74517492

                                        SHA1

                                        cac06c7755eeddf087d51468ac0118e59e511005

                                        SHA256

                                        9131dfd4224442668c30bf90b7fe895dd07a8e04e1af96a717923e5b3fb15778

                                        SHA512

                                        4f604c39dc5fe03a97df18d4658f720a34bd0d0de9e48b73c19d873ed2bd0d31ed5bfc6e55dec777350daa9c689180602899e411523b897748e735bc312e012c

                                      • memory/2604-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/2604-17-0x0000000025010000-0x000000002508E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/2604-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/2604-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                        Filesize

                                        364KB

                                      • memory/2604-37-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/3648-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/3648-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/3648-3-0x0000000001720000-0x000000000179E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/3648-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB