Analysis

  • max time kernel
    141s
  • 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 12:48

General

  • Target

    8e21453e6c29301129b32446ece9e744.exe

  • Size

    3.0MB

  • MD5

    8e21453e6c29301129b32446ece9e744

  • SHA1

    85421f58fde833a53b32d9c3f5acdbf6cb5ab17d

  • SHA256

    21de9ff37199db3dd554fad03970e2352c66312e60cc4d05418da893a6bfbfcc

  • SHA512

    abd6afb40dd53a3046be176516758cc848306962d013b43f26e152438fa3d1b060bffebcef6d6b50b1d764fa2b53c7d72cc2a380cfb4e1f476d69573abfc4c2d

  • SSDEEP

    49152:gqvh2iqQ8p2cakLyzjcNDQreELepcakLKPNsn5xeQ2rJmzLcakLyzjcNDQreELeU:gqvh26A2cakijyDQreELscakulsn5xeW

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 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\8e21453e6c29301129b32446ece9e744.exe
    "C:\Users\Admin\AppData\Local\Temp\8e21453e6c29301129b32446ece9e744.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4600
    • C:\Users\Admin\AppData\Local\Temp\8e21453e6c29301129b32446ece9e744.exe
      C:\Users\Admin\AppData\Local\Temp\8e21453e6c29301129b32446ece9e744.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4888
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\8e21453e6c29301129b32446ece9e744.exe" /TN 91YuFL8m6860 /F
        3⤵
        • Creates scheduled task(s)
        PID:1160
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 91YuFL8m6860 > C:\Users\Admin\AppData\Local\Temp\RVcfKKU.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2544
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN 91YuFL8m6860
          4⤵
            PID:3884
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 612
          3⤵
          • Program crash
          PID:380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 628
          3⤵
          • Program crash
          PID:3428
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 636
          3⤵
          • Program crash
          PID:2004
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 716
          3⤵
          • Program crash
          PID:2652
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 716
          3⤵
          • Program crash
          PID:4956
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 780
          3⤵
          • Program crash
          PID:5056
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 1460
          3⤵
          • Program crash
          PID:4484
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 1908
          3⤵
          • Program crash
          PID:4512
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 2144
          3⤵
          • Program crash
          PID:1412
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 1948
          3⤵
          • Program crash
          PID:4936
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 1912
          3⤵
          • Program crash
          PID:4608
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 2112
          3⤵
          • Program crash
          PID:4112
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 2124
          3⤵
          • Program crash
          PID:3772
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 2176
          3⤵
          • Program crash
          PID:4268
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 1976
          3⤵
          • Program crash
          PID:3244
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 1912
          3⤵
          • Program crash
          PID:4536
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 1908
          3⤵
          • Program crash
          PID:3764
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 624
          3⤵
          • Program crash
          PID:4348
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4888 -ip 4888
      1⤵
        PID:1936
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4888 -ip 4888
        1⤵
          PID:4672
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4888 -ip 4888
          1⤵
            PID:3716
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4888 -ip 4888
            1⤵
              PID:3412
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4888 -ip 4888
              1⤵
                PID:4304
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 4888 -ip 4888
                1⤵
                  PID:4328
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4888 -ip 4888
                  1⤵
                    PID:60
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4888 -ip 4888
                    1⤵
                      PID:2252
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4888 -ip 4888
                      1⤵
                        PID:4980
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4888 -ip 4888
                        1⤵
                          PID:3576
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4888 -ip 4888
                          1⤵
                            PID:3336
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4888 -ip 4888
                            1⤵
                              PID:4492
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4888 -ip 4888
                              1⤵
                                PID:3540
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4888 -ip 4888
                                1⤵
                                  PID:3148
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4888 -ip 4888
                                  1⤵
                                    PID:908
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4888 -ip 4888
                                    1⤵
                                      PID:4984
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4888 -ip 4888
                                      1⤵
                                        PID:4928
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4888 -ip 4888
                                        1⤵
                                          PID:2320

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\8e21453e6c29301129b32446ece9e744.exe

                                          Filesize

                                          3.0MB

                                          MD5

                                          b46d59ae46662c0fd873484d35778b32

                                          SHA1

                                          4e492bcff09e2695c0590653db84e17b68482167

                                          SHA256

                                          ca958d5ef0b0440c96a0630a357ae1fbc27538b859f7e7d7677e5e86d65012c0

                                          SHA512

                                          ac358cbc2e2f2915ef3dd092754ddf1e18bf3f41f6d79de5a179e552a41c269f2fd806392098732b2cf708b77dcbd4bfefdc5b60f532cda557cfc2f216267d49

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

                                          Filesize

                                          1KB

                                          MD5

                                          b3ff791291d0528092e3e60ca6b5b460

                                          SHA1

                                          fe0bd634599d896d900455be52726c33ab08470b

                                          SHA256

                                          f38b6b80fb1f8315848cb615fcb823014f7eb11bac47b6724f53ff6b9c560862

                                          SHA512

                                          92586d8c79f9664c442b264f3eb039487a166366fe3c96ebf1c50d4818dad1bb8d10b371c36a6a5197e64fafe39347873fd80c6de1fa013e5602194f82a7324d

                                        • memory/4600-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4600-3-0x0000000001660000-0x00000000016DE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4600-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4600-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4888-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4888-17-0x0000000025070000-0x00000000250EE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4888-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/4888-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4888-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB