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Analysis

  • max time kernel
    149s
  • max time network
    149s
  • 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, 15:58

General

  • Target

    e3aa3521b67dba2baf5f83c118c3a218.exe

  • Size

    1.5MB

  • MD5

    e3aa3521b67dba2baf5f83c118c3a218

  • SHA1

    a7bfcd82fb626bcd26c8f1399018cc69ebdea9aa

  • SHA256

    023a9696279b3e257f30853097352649aa2b1dfed0ef6481129b8920114e4dd4

  • SHA512

    6df733d1815c7e9d7cb85f6bae49eeb90f2ca97f1ef15ec6965aa0155db53900cb1a81e24ac76dee0203655d35dfdf789cdd8af3b560c03347948e3885a40d52

  • SSDEEP

    24576:2UpEwdgwYh1ToqhpIcjukL2GsknNfijtXJYviCgMi6pcjukL2Y:/pEwdgwYh1To+IcakLJBij/Y3gMiccaM

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 5 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\e3aa3521b67dba2baf5f83c118c3a218.exe
    "C:\Users\Admin\AppData\Local\Temp\e3aa3521b67dba2baf5f83c118c3a218.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Users\Admin\AppData\Local\Temp\e3aa3521b67dba2baf5f83c118c3a218.exe
      C:\Users\Admin\AppData\Local\Temp\e3aa3521b67dba2baf5f83c118c3a218.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4908
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN nMQUF5AE494a > C:\Users\Admin\AppData\Local\Temp\oTj5n5.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4280
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN nMQUF5AE494a
          4⤵
            PID:2492
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 620
          3⤵
          • Program crash
          PID:4792
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 632
          3⤵
          • Program crash
          PID:3188
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 736
          3⤵
          • Program crash
          PID:4808
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 652
          3⤵
          • Program crash
          PID:1660
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 732
          3⤵
          • Program crash
          PID:2664
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\e3aa3521b67dba2baf5f83c118c3a218.exe" /TN nMQUF5AE494a /F
      1⤵
      • Creates scheduled task(s)
      PID:4992
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4908 -ip 4908
      1⤵
        PID:2412
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4908 -ip 4908
        1⤵
          PID:1248
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4908 -ip 4908
          1⤵
            PID:3324
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4908 -ip 4908
            1⤵
              PID:980
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4908 -ip 4908
              1⤵
                PID:1060

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Temp\e3aa3521b67dba2baf5f83c118c3a218.exe

                Filesize

                43KB

                MD5

                80eac740be5a255cc15eee717e08e993

                SHA1

                da0cb16655707ed93b1f33506838679333239a44

                SHA256

                c6f3ba692ca5b58de5b057f4849cfd9bd35407579a51a22b0e9eeab84c7877ba

                SHA512

                8a1e0ccdf7c05e467fd9f9af40a8dd383fcd762ee2e5d55d1852d62bb16cf715a94eaf92a983b4e6f3e6d75e225f0566a0f245d7c537fc77dbee9288ae10f613

              • C:\Users\Admin\AppData\Local\Temp\oTj5n5.xml

                Filesize

                1KB

                MD5

                6cc074e0562de6a4d2498c76e50cf7c5

                SHA1

                e169fcd5c2bca0292e63ea4e4cf7a62f143f0892

                SHA256

                aa9ebc43a16a3c81d718b2fa89a9342b316eb7536bea36edb7a5803b2f66362b

                SHA512

                76121c4122e1216651fe3f7509a465310acd2cb4a3e88dff1861bbdf4fd71265062f4e34862b39e5d91aeed0825716d50857e587f28e785436c49365d043c5f5

              • memory/4888-0-0x0000000000400000-0x000000000065C000-memory.dmp

                Filesize

                2.4MB

              • memory/4888-1-0x0000000000400000-0x000000000046B000-memory.dmp

                Filesize

                428KB

              • memory/4888-3-0x0000000024FF0000-0x000000002506E000-memory.dmp

                Filesize

                504KB

              • memory/4888-13-0x0000000000400000-0x000000000046B000-memory.dmp

                Filesize

                428KB

              • memory/4908-14-0x0000000000400000-0x000000000065C000-memory.dmp

                Filesize

                2.4MB

              • memory/4908-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                Filesize

                428KB

              • memory/4908-16-0x0000000025040000-0x00000000250BE000-memory.dmp

                Filesize

                504KB

              • memory/4908-23-0x0000000000400000-0x000000000045B000-memory.dmp

                Filesize

                364KB

              • memory/4908-40-0x0000000000400000-0x000000000065C000-memory.dmp

                Filesize

                2.4MB