Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-03-2024 05:42

General

  • Target

    e0e891b34b91e778c6de8cf7ffdedffc.exe

  • Size

    1003KB

  • MD5

    e0e891b34b91e778c6de8cf7ffdedffc

  • SHA1

    2dd796db4509c985aaae689a3821f14f97cf23b9

  • SHA256

    83128aafeb1b52e576e86a170131ada6eaa2043c97fec27f49838d1c96f50cdc

  • SHA512

    5d9158546e8abd338031f248d0b7e78d9a84a587be397cee34c5550f5f8a1c11b6bc8450746be8f7e7fa92a564067a249d0c4feca0a79d9377673311a83828d0

  • SSDEEP

    24576:pEodsbt+mLuDA3HTeFFjFvplgAdRKlt1:pEoOR+mL33zq1FxlgAdRKlt1

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\e0e891b34b91e778c6de8cf7ffdedffc.exe
    "C:\Users\Admin\AppData\Local\Temp\e0e891b34b91e778c6de8cf7ffdedffc.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3780
    • C:\Users\Admin\AppData\Local\Temp\e0e891b34b91e778c6de8cf7ffdedffc.exe
      C:\Users\Admin\AppData\Local\Temp\e0e891b34b91e778c6de8cf7ffdedffc.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:796
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\e0e891b34b91e778c6de8cf7ffdedffc.exe" /TN Zu1tk2JP99e9 /F
        3⤵
        • Creates scheduled task(s)
        PID:4624
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN Zu1tk2JP99e9 > C:\Users\Admin\AppData\Local\Temp\BYZcN.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3100
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN Zu1tk2JP99e9
          4⤵
            PID:824
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 604
          3⤵
          • Program crash
          PID:2244
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 628
          3⤵
          • Program crash
          PID:2212
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 636
          3⤵
          • Program crash
          PID:5012
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 628
          3⤵
          • Program crash
          PID:4888
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 628
          3⤵
          • Program crash
          PID:784
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 780
          3⤵
          • Program crash
          PID:4936
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 1468
          3⤵
          • Program crash
          PID:3544
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 1632
          3⤵
          • Program crash
          PID:2412
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 2144
          3⤵
          • Program crash
          PID:2348
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 1940
          3⤵
          • Program crash
          PID:4396
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 2000
          3⤵
          • Program crash
          PID:4040
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 2160
          3⤵
          • Program crash
          PID:2860
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 1976
          3⤵
          • Program crash
          PID:3356
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 1948
          3⤵
          • Program crash
          PID:3424
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 2172
          3⤵
          • Program crash
          PID:1380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 1480
          3⤵
          • Program crash
          PID:1148
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 2108
          3⤵
          • Program crash
          PID:2452
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 796 -s 624
          3⤵
          • Program crash
          PID:2604
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 796 -ip 796
      1⤵
        PID:5032
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 796 -ip 796
        1⤵
          PID:4616
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 796 -ip 796
          1⤵
            PID:2848
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 796 -ip 796
            1⤵
              PID:1068
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 796 -ip 796
              1⤵
                PID:1904
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 796 -ip 796
                1⤵
                  PID:3116
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 796 -ip 796
                  1⤵
                    PID:2068
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 796 -ip 796
                    1⤵
                      PID:3096
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 796 -ip 796
                      1⤵
                        PID:4424
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 796 -ip 796
                        1⤵
                          PID:3644
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 796 -ip 796
                          1⤵
                            PID:3300
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 796 -ip 796
                            1⤵
                              PID:3796
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 796 -ip 796
                              1⤵
                                PID:4384
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 796 -ip 796
                                1⤵
                                  PID:4624
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 796 -ip 796
                                  1⤵
                                    PID:2008
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 796 -ip 796
                                    1⤵
                                      PID:2844
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 796 -ip 796
                                      1⤵
                                        PID:3152
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 796 -ip 796
                                        1⤵
                                          PID:232

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

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

                                          Filesize

                                          1KB

                                          MD5

                                          ef0370c6ee54d7406d53a7303cbb012b

                                          SHA1

                                          e321acf74476a8857cbff57ee10dd5ec650100ea

                                          SHA256

                                          b63604da4b2589779832e847cf9295021d3765b09ac920580d0937caa7155a6c

                                          SHA512

                                          0d707e2532d629fafa7ad00e0ac52335b95681a40442da2a7c65b196f6455edb521c0e91ac25654be6ceecb76e00278ad5bda92a7556b6d93d9ed3001b6aecb5

                                        • C:\Users\Admin\AppData\Local\Temp\e0e891b34b91e778c6de8cf7ffdedffc.exe

                                          Filesize

                                          1003KB

                                          MD5

                                          a5f3f488964b4b590ed4ae641f60c366

                                          SHA1

                                          53d9d917954666a54b0651bfb33354108470a537

                                          SHA256

                                          70cb20e3b2d0d4fb473b5bc69ca0b88d4b5215dbfd6ab57cb12cc49b532e4018

                                          SHA512

                                          d59f8079214e28e13d63d21d2ee6cc524feb095a1a54d4e6197351550d779a81d033c24c24ad66f587089fee90be51e2fdbe8a84456cf5c96be176f05497784f

                                        • memory/796-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/796-16-0x00000000017A0000-0x000000000181E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/796-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/796-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/796-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3780-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3780-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3780-3-0x0000000025010000-0x000000002508E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3780-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB