Analysis

  • max time kernel
    140s
  • max time network
    135s
  • 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 13:38

General

  • Target

    a86bc4b652204ae67921450b18070151.exe

  • Size

    1.5MB

  • MD5

    a86bc4b652204ae67921450b18070151

  • SHA1

    8b8b7f62db07f12f7bf4d89ccda5bfb04c3d4acd

  • SHA256

    993b2310602349f7a87839065ec05a4de0a79a1042369b154e3ee36064e95aa8

  • SHA512

    6538f66488ba6f0b0c2e1d35e8a3933362c07e9e8451c5c37f98b3e1caed77c9b2f8efbc3768dc19884053157282b65b1fff8b4e8c3495906399ccad307c08c9

  • SSDEEP

    24576:jrn0Cn0feqGFXMcjukL2f0wt5frvsMZ500VUbQbcjukL2Y:jrn0Cn0WqGRMcakLs0+QMZuwUUcakLj

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\a86bc4b652204ae67921450b18070151.exe
    "C:\Users\Admin\AppData\Local\Temp\a86bc4b652204ae67921450b18070151.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2188
    • C:\Users\Admin\AppData\Local\Temp\a86bc4b652204ae67921450b18070151.exe
      C:\Users\Admin\AppData\Local\Temp\a86bc4b652204ae67921450b18070151.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3552
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\a86bc4b652204ae67921450b18070151.exe" /TN 1WOV8tOcae1c /F
        3⤵
        • Creates scheduled task(s)
        PID:336
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 1WOV8tOcae1c > C:\Users\Admin\AppData\Local\Temp\HmJNBbXih.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:100
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN 1WOV8tOcae1c
          4⤵
            PID:4044
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 604
          3⤵
          • Program crash
          PID:4472
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 632
          3⤵
          • Program crash
          PID:4572
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 640
          3⤵
          • Program crash
          PID:4368
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 636
          3⤵
          • Program crash
          PID:4424
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 724
          3⤵
          • Program crash
          PID:5036
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 780
          3⤵
          • Program crash
          PID:4488
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1456
          3⤵
          • Program crash
          PID:1152
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1916
          3⤵
          • Program crash
          PID:1564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 2144
          3⤵
          • Program crash
          PID:836
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1932
          3⤵
          • Program crash
          PID:4588
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1920
          3⤵
          • Program crash
          PID:2948
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1932
          3⤵
          • Program crash
          PID:1384
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 2184
          3⤵
          • Program crash
          PID:4324
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 1924
          3⤵
          • Program crash
          PID:4176
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 2172
          3⤵
          • Program crash
          PID:2268
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 2168
          3⤵
          • Program crash
          PID:1636
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 604
          3⤵
          • Program crash
          PID:4424
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3552 -ip 3552
      1⤵
        PID:3564
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3552 -ip 3552
        1⤵
          PID:1968
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3552 -ip 3552
          1⤵
            PID:1236
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3552 -ip 3552
            1⤵
              PID:4476
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3552 -ip 3552
              1⤵
                PID:4640
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3552 -ip 3552
                1⤵
                  PID:2920
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3552 -ip 3552
                  1⤵
                    PID:232
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3552 -ip 3552
                    1⤵
                      PID:208
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 3552 -ip 3552
                      1⤵
                        PID:3748
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3552 -ip 3552
                        1⤵
                          PID:3008
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3552 -ip 3552
                          1⤵
                            PID:3452
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3552 -ip 3552
                            1⤵
                              PID:2112
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 3552 -ip 3552
                              1⤵
                                PID:1316
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 3552 -ip 3552
                                1⤵
                                  PID:3368
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3552 -ip 3552
                                  1⤵
                                    PID:1064
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 3552 -ip 3552
                                    1⤵
                                      PID:4424
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 3552 -ip 3552
                                      1⤵
                                        PID:2356

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

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

                                        Filesize

                                        1KB

                                        MD5

                                        456ea8666e05c7e2dead1014b873c858

                                        SHA1

                                        54c2b5ee4846525f0de99bf5071e3b517481e6a9

                                        SHA256

                                        0c5ef111d3d4f9d91f36d7f318ece8c6455e47dcf91bf83278ac0282c9e85dbb

                                        SHA512

                                        47edb7e398b805f09606fe401d978c2e361b1c1e7fccc69ccf75a61c4111b6742a31b8b45fed5a2621daeb61823a80df5219edca76c717c6ac2451e3c4ad422a

                                      • C:\Users\Admin\AppData\Local\Temp\a86bc4b652204ae67921450b18070151.exe

                                        Filesize

                                        1.5MB

                                        MD5

                                        8cb05c7b123d4a0d5f0a6943fa0e8f85

                                        SHA1

                                        7c6dc59850de61072a86f4b3389a435cb5ff76ad

                                        SHA256

                                        61201dd1f77bcdc817fecd653e519646b8366083b25c6c0b39d39dd386c4287e

                                        SHA512

                                        1dc445dcbc1970700f9428b2be19755babf5dd4148be2e7c02acb8e2ce47638b0c44a88db97135cf1fb6ac81229e7a290bb8923464a637c757cf77f0a6abd4e5

                                      • memory/2188-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/2188-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/2188-6-0x00000000017C0000-0x000000000183E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/2188-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/3552-15-0x00000000016E0000-0x000000000175E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/3552-17-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/3552-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                        Filesize

                                        364KB

                                      • memory/3552-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/3552-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB