Analysis

  • max time kernel
    142s
  • max time network
    151s
  • 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 04:30

General

  • Target

    645ecaab26ad34e4c3d2c39d610e8fdb.exe

  • Size

    2.0MB

  • MD5

    645ecaab26ad34e4c3d2c39d610e8fdb

  • SHA1

    c254fc513cdd1f1406d046584dc18a532cd9da44

  • SHA256

    9cf32533559d5bb9b96da3f2054dd8b21ec0e0a53087c7c422f78e5ce3ded930

  • SHA512

    1e524b14c2212781162d23b69db29f20a07a09e6a3c7f3e9ebb93dddba6a55174b78161b257e9c4df41ea0271ea40334b36a95b0e23d493163e561e86f445247

  • SSDEEP

    49152:3rWhHrLZK7WNX/udodLJlb+7Zpk6IOtuRHZlFtIudodLJlb+7Zpk6IOtuR:7WNrLZ8WNWd8Lzb+7ZpkwtuhrFtLd8L7

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\645ecaab26ad34e4c3d2c39d610e8fdb.exe
    "C:\Users\Admin\AppData\Local\Temp\645ecaab26ad34e4c3d2c39d610e8fdb.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3272
    • C:\Users\Admin\AppData\Local\Temp\645ecaab26ad34e4c3d2c39d610e8fdb.exe
      C:\Users\Admin\AppData\Local\Temp\645ecaab26ad34e4c3d2c39d610e8fdb.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:508
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 612
        3⤵
        • Program crash
        PID:3984
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN mCaqQXkK46ae > C:\Users\Admin\AppData\Local\Temp\a0RIz.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1720
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\645ecaab26ad34e4c3d2c39d610e8fdb.exe" /TN mCaqQXkK46ae /F
        3⤵
        • Creates scheduled task(s)
        PID:3520
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 640
        3⤵
        • Program crash
        PID:1428
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 712
        3⤵
        • Program crash
        PID:4184
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 756
        3⤵
        • Program crash
        PID:4008
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 776
        3⤵
        • Program crash
        PID:2992
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 784
        3⤵
        • Program crash
        PID:3816
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 1460
        3⤵
        • Program crash
        PID:2788
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 1916
        3⤵
        • Program crash
        PID:3812
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 2144
        3⤵
        • Program crash
        PID:856
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 2096
        3⤵
        • Program crash
        PID:3648
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 1928
        3⤵
        • Program crash
        PID:4236
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 2152
        3⤵
        • Program crash
        PID:3896
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 1916
        3⤵
        • Program crash
        PID:1672
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 2140
        3⤵
        • Program crash
        PID:4488
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 1988
        3⤵
        • Program crash
        PID:2120
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 1948
        3⤵
        • Program crash
        PID:1984
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 1880
        3⤵
        • Program crash
        PID:4436
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 508 -s 728
        3⤵
        • Program crash
        PID:4292
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 508 -ip 508
    1⤵
      PID:4880
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks.exe /Query /XML /TN mCaqQXkK46ae
      1⤵
        PID:4788
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 508 -ip 508
        1⤵
          PID:1584
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 508 -ip 508
          1⤵
            PID:4456
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 508 -ip 508
            1⤵
              PID:1840
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 508 -ip 508
              1⤵
                PID:848
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 508 -ip 508
                1⤵
                  PID:4500
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 508 -ip 508
                  1⤵
                    PID:1336
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 508 -ip 508
                    1⤵
                      PID:3408
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 508 -ip 508
                      1⤵
                        PID:3504
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 508 -ip 508
                        1⤵
                          PID:2020
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 508 -ip 508
                          1⤵
                            PID:2836
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 508 -ip 508
                            1⤵
                              PID:1904
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 508 -ip 508
                              1⤵
                                PID:3068
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 508 -ip 508
                                1⤵
                                  PID:1256
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 508 -ip 508
                                  1⤵
                                    PID:3528
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 508 -ip 508
                                    1⤵
                                      PID:3440
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 508 -ip 508
                                      1⤵
                                        PID:1816
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 508 -ip 508
                                        1⤵
                                          PID:4604

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\645ecaab26ad34e4c3d2c39d610e8fdb.exe

                                          Filesize

                                          104KB

                                          MD5

                                          ac66db3fb9a46842a5f180c88c1b349e

                                          SHA1

                                          14eaae39047c1f505e6d4fd89265000c212ec6a4

                                          SHA256

                                          3c46aa2cab9e1cd20391dd40128e02e160b0e8ea04d22098b149f563224845f5

                                          SHA512

                                          688207e6ae51c3397a0fb293689f866481e5641e823d84012bcf74ad3534c8c62b863a9dd1e983d0098d40dbbe19db578a9a1e3287f86c8c894c423d8346c8f6

                                        • C:\Users\Admin\AppData\Local\Temp\a0RIz.xml

                                          Filesize

                                          1KB

                                          MD5

                                          915e0e3a307894971d9f3b10e93cf074

                                          SHA1

                                          8af6f02ca5363f0ba00ec62a18f5431e8c680e88

                                          SHA256

                                          80aa1787e80e4aed9088e69132a5d0efbcda61c45d61b9d0a4eebffeab51805d

                                          SHA512

                                          0ba44552ac7740f55d71b9ef48015ada1fcc08e8b29c6e583cac64d1ff54908bdcd2feb5eefab80c68d7c763f866046921619e7905aa75abaac819e307b1b43e

                                        • memory/508-17-0x0000000025010000-0x000000002508E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/508-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/508-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/508-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/508-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3272-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3272-4-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3272-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3272-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB