Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-03-2024 07:00

General

  • Target

    c543f35f845e53e02b6ce9622feccb7a.exe

  • Size

    1003KB

  • MD5

    c543f35f845e53e02b6ce9622feccb7a

  • SHA1

    94210d20cf87df31b0a979cb39ced904570e9e96

  • SHA256

    af6a92045ce2bff3e5bec8c7a77501bf49a1af5a62249a8e40aa33bbcf3ef9d7

  • SHA512

    0f1d9343b9d31b39636c8b42c91babb328c5618103778e4c0689cefefe2733acd2fb997ee02b7ecf1d860550686def517497a53dccebcf25a56a49084cad0638

  • SSDEEP

    24576:b+WwdyzmtiSKrsYrUjZI4pvagCwlyuxr/A:b+WwdyzmUSKrsYrUjZZpXCwIuh/A

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 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\c543f35f845e53e02b6ce9622feccb7a.exe
    "C:\Users\Admin\AppData\Local\Temp\c543f35f845e53e02b6ce9622feccb7a.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Users\Admin\AppData\Local\Temp\c543f35f845e53e02b6ce9622feccb7a.exe
      C:\Users\Admin\AppData\Local\Temp\c543f35f845e53e02b6ce9622feccb7a.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:944
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\c543f35f845e53e02b6ce9622feccb7a.exe" /TN s1xY9tnhebe4 /F
        3⤵
        • Creates scheduled task(s)
        PID:2616
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN s1xY9tnhebe4 > C:\Users\Admin\AppData\Local\Temp\qhMdJE.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3920
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN s1xY9tnhebe4
          4⤵
            PID:3476
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 604
          3⤵
          • Program crash
          PID:3180
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 652
          3⤵
          • Program crash
          PID:2732
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 660
          3⤵
          • Program crash
          PID:1300
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 740
          3⤵
          • Program crash
          PID:3404
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 772
          3⤵
          • Program crash
          PID:3940
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 768
          3⤵
          • Program crash
          PID:400
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 1468
          3⤵
          • Program crash
          PID:4464
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 1920
          3⤵
          • Program crash
          PID:1320
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 2144
          3⤵
          • Program crash
          PID:3924
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 1912
          3⤵
          • Program crash
          PID:4720
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 2156
          3⤵
          • Program crash
          PID:776
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 1968
          3⤵
          • Program crash
          PID:4928
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 2124
          3⤵
          • Program crash
          PID:4988
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 1972
          3⤵
          • Program crash
          PID:400
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 2156
          3⤵
          • Program crash
          PID:4456
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 2152
          3⤵
          • Program crash
          PID:5076
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 1880
          3⤵
          • Program crash
          PID:5232
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 648
          3⤵
          • Program crash
          PID:5192
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 944 -ip 944
      1⤵
        PID:4900
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 944 -ip 944
        1⤵
          PID:4996
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 944 -ip 944
          1⤵
            PID:4444
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 944 -ip 944
            1⤵
              PID:3060
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 944 -ip 944
              1⤵
                PID:2616
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 944 -ip 944
                1⤵
                  PID:2724
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 944 -ip 944
                  1⤵
                    PID:2196
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 944 -ip 944
                    1⤵
                      PID:4484
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 944 -ip 944
                      1⤵
                        PID:3988
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 944 -ip 944
                        1⤵
                          PID:4072
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 944 -ip 944
                          1⤵
                            PID:1992
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 944 -ip 944
                            1⤵
                              PID:3608
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 944 -ip 944
                              1⤵
                                PID:4312
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 944 -ip 944
                                1⤵
                                  PID:2544
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 944 -ip 944
                                  1⤵
                                    PID:3232
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 944 -ip 944
                                    1⤵
                                      PID:3480
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 944 -ip 944
                                      1⤵
                                        PID:5212
                                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3920 --field-trial-handle=2256,i,6057863739127169200,6895476048812676039,262144 --variations-seed-version /prefetch:8
                                        1⤵
                                          PID:5376
                                        • C:\Windows\SysWOW64\WerFault.exe
                                          C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 944 -ip 944
                                          1⤵
                                            PID:5172

                                          Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

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                                          Downloads

                                          • C:\Users\Admin\AppData\Local\Temp\c543f35f845e53e02b6ce9622feccb7a.exe

                                            Filesize

                                            1003KB

                                            MD5

                                            05aceb1a3956e0c0053cdf426ecd937c

                                            SHA1

                                            4fdc869723de6f24a3731b8c3d310a4d4e112074

                                            SHA256

                                            77c93336b6413d1698919fee1cc2430f21d47fb247b536548f7cfa752cd963fc

                                            SHA512

                                            a72c5670bfe881d354109f4e006c761a34d62b333fefbd45d8e7de3a149eba65f7749174fcd16bdbe2c97c81d9b6ccae68daabcbbf3447a29e3c436a5757e4f7

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

                                            Filesize

                                            1KB

                                            MD5

                                            5746de891bd29ac0f2d92baa5a1f40f3

                                            SHA1

                                            ca09b6379513a64e34d60870a1665713bf6d186b

                                            SHA256

                                            d92407c9c7d625e1958f729e87ad5527b0251c92dbcc29c21a3742539757d7b6

                                            SHA512

                                            5beb67dabe1f6b18c6659f0a016030d47ec24273ea98900907e9f228196030fd67b86b35d5f30af15c7fcf10d8376ff9653914855341b7162e62440292cbcada

                                          • memory/944-16-0x0000000023FE0000-0x000000002405E000-memory.dmp

                                            Filesize

                                            504KB

                                          • memory/944-13-0x0000000000400000-0x000000000065C000-memory.dmp

                                            Filesize

                                            2.4MB

                                          • memory/944-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                            Filesize

                                            364KB

                                          • memory/944-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                            Filesize

                                            428KB

                                          • memory/944-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                            Filesize

                                            2.4MB

                                          • memory/1952-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                            Filesize

                                            2.4MB

                                          • memory/1952-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                            Filesize

                                            428KB

                                          • memory/1952-3-0x0000000001730000-0x00000000017AE000-memory.dmp

                                            Filesize

                                            504KB

                                          • memory/1952-15-0x0000000000400000-0x000000000046B000-memory.dmp

                                            Filesize

                                            428KB