Analysis

  • max time kernel
    124s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2023, 04:40

General

  • Target

    6633a400fe2b3492fa8d7434c8d2d36d.exe

  • Size

    2.2MB

  • MD5

    6633a400fe2b3492fa8d7434c8d2d36d

  • SHA1

    8495edce3217ca0897610eb7c7cbdfb9a50e7ae9

  • SHA256

    ad371212eec7682454bf9c020cfca89c3a449ef6cfb06cb25e27fe6d094a8bde

  • SHA512

    2e226e452adc1c5d5e1a91aaff7e7d95a2209b1880195957785e68755a1dad014f618f83380de95d4438b93afb6ed9a6c07ceb46331c557c74601e838f59a310

  • SSDEEP

    49152:ynfJKMvEDLbQT0iC4lgvNcN+9zWFULG+aLP6h1Z8WlephE94UK0GcN+9zWFULG+t:ynf4MvEDLjiC4KveA9zyULG+aLPSZ8ye

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
  • 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\6633a400fe2b3492fa8d7434c8d2d36d.exe
    "C:\Users\Admin\AppData\Local\Temp\6633a400fe2b3492fa8d7434c8d2d36d.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1160
    • C:\Users\Admin\AppData\Local\Temp\6633a400fe2b3492fa8d7434c8d2d36d.exe
      C:\Users\Admin\AppData\Local\Temp\6633a400fe2b3492fa8d7434c8d2d36d.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4512
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 0Su7L8S745c1 > C:\Users\Admin\AppData\Local\Temp\RgRxiWj.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2220
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN 0Su7L8S745c1
          4⤵
            PID:640
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 616
          3⤵
          • Program crash
          PID:3200
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\6633a400fe2b3492fa8d7434c8d2d36d.exe" /TN 0Su7L8S745c1 /F
          3⤵
          • Creates scheduled task(s)
          PID:2088
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 600
          3⤵
          • Program crash
          PID:3216
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 636
          3⤵
          • Program crash
          PID:4736
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 636
          3⤵
          • Program crash
          PID:684
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 636
          3⤵
          • Program crash
          PID:4276
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 752
          3⤵
          • Program crash
          PID:1680
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 1272
          3⤵
          • Program crash
          PID:1324
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 1916
          3⤵
          • Program crash
          PID:3508
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 2144
          3⤵
          • Program crash
          PID:2196
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 1932
          3⤵
          • Program crash
          PID:3968
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 1920
          3⤵
          • Program crash
          PID:436
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 2124
          3⤵
          • Program crash
          PID:3884
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 2176
          3⤵
          • Program crash
          PID:4320
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 2008
          3⤵
          • Program crash
          PID:2224
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 2120
          3⤵
          • Program crash
          PID:3116
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 2208
          3⤵
          • Program crash
          PID:528
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 628
          3⤵
          • Program crash
          PID:1568
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4512 -ip 4512
      1⤵
        PID:1072
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4512 -ip 4512
        1⤵
          PID:4504
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4512 -ip 4512
          1⤵
            PID:4820
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4512 -ip 4512
            1⤵
              PID:1672
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4512 -ip 4512
              1⤵
                PID:4312
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4512 -ip 4512
                1⤵
                  PID:2304
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4512 -ip 4512
                  1⤵
                    PID:2580
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4512 -ip 4512
                    1⤵
                      PID:4164
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4512 -ip 4512
                      1⤵
                        PID:2732
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4512 -ip 4512
                        1⤵
                          PID:516
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4512 -ip 4512
                          1⤵
                            PID:4024
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4512 -ip 4512
                            1⤵
                              PID:4040
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4512 -ip 4512
                              1⤵
                                PID:4524
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4512 -ip 4512
                                1⤵
                                  PID:4100
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4512 -ip 4512
                                  1⤵
                                    PID:4388
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4512 -ip 4512
                                    1⤵
                                      PID:4268
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4512 -ip 4512
                                      1⤵
                                        PID:952

                                      Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            • C:\Users\Admin\AppData\Local\Temp\6633a400fe2b3492fa8d7434c8d2d36d.exe

                                              Filesize

                                              246KB

                                              MD5

                                              655b329d90b0993c70f5e94bd6de5215

                                              SHA1

                                              961c0225ff82ffa3ebf5c0403ac31517f5163205

                                              SHA256

                                              10a807dabad0f216719fc1da73273a9678bc707d391a997101d75a320a176d34

                                              SHA512

                                              92df85e74020c1d8006c908641ff0133a696893763804a3377f4180b619aefc33a0300976faf4665bcb52ea7659939c666a183ba1e183047b674bdd157259f46

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

                                              Filesize

                                              1KB

                                              MD5

                                              40e5db3fd1d56e7e83005e038468ebfa

                                              SHA1

                                              e56e75008eee44f41f42d846ec7e257ae8de2e5e

                                              SHA256

                                              d2143528c11cda2806df10f982311d57b657c5418197883e366114696ce2e5c1

                                              SHA512

                                              9a06f9bd5f0438d363010e25eaa98d3c8153853f57db69dcd44d0619b796d18b21db4b16a6e58fb8ee13fa2e9c5ff3febd581c25f9243aab75c5c6881667cd30

                                            • memory/1160-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/1160-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/1160-7-0x0000000001720000-0x000000000179E000-memory.dmp

                                              Filesize

                                              504KB

                                            • memory/1160-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/4512-15-0x0000000024FF0000-0x000000002506E000-memory.dmp

                                              Filesize

                                              504KB

                                            • memory/4512-18-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/4512-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                              Filesize

                                              364KB

                                            • memory/4512-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/4512-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB