Analysis

  • max time kernel
    144s
  • 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, 03:37

General

  • Target

    5c6613e8d46100b10bac5a019aa60cb1.exe

  • Size

    3.0MB

  • MD5

    5c6613e8d46100b10bac5a019aa60cb1

  • SHA1

    e8890c6fa5580c66fd12223caa20e44632fbe562

  • SHA256

    6117cc985174b47f9bc6b87966f684f3bb5008869c83f49be1c04939ea32eae3

  • SHA512

    5dcc1cd862afb4936b193bdb62a04e5d9e15d4718e9eb057f34d84e7710f140efc4feef4c5c23cdf048230baf2ec019775884a8e02ba57343cbb276ee25736a0

  • SSDEEP

    49152:aL/h54nheZbLODpAcakLVy5dv5sgpkB5+PcakLQN2RldxLLNi2MScakLVy5dv5sR:aL/h54nheZbaDpAcakhy595sgp9cak/4

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 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\5c6613e8d46100b10bac5a019aa60cb1.exe
    "C:\Users\Admin\AppData\Local\Temp\5c6613e8d46100b10bac5a019aa60cb1.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2332
    • C:\Users\Admin\AppData\Local\Temp\5c6613e8d46100b10bac5a019aa60cb1.exe
      C:\Users\Admin\AppData\Local\Temp\5c6613e8d46100b10bac5a019aa60cb1.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4724
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 648
        3⤵
        • Program crash
        PID:4460
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 656
        3⤵
        • Program crash
        PID:4468
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 652
        3⤵
        • Program crash
        PID:1496
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 652
        3⤵
        • Program crash
        PID:3324
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 780
        3⤵
        • Program crash
        PID:4812
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 1468
        3⤵
        • Program crash
        PID:1964
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 1916
        3⤵
        • Program crash
        PID:1940
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 2144
        3⤵
        • Program crash
        PID:2352
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 1956
        3⤵
        • Program crash
        PID:3052
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 1992
        3⤵
        • Program crash
        PID:4408
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 1920
        3⤵
        • Program crash
        PID:3152
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 1984
        3⤵
        • Program crash
        PID:4800
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 1932
        3⤵
        • Program crash
        PID:3940
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 1928
        3⤵
        • Program crash
        PID:2932
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 2124
        3⤵
        • Program crash
        PID:3620
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 604
        3⤵
        • Program crash
        PID:468
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\5c6613e8d46100b10bac5a019aa60cb1.exe" /TN nMQUF5AE494a /F
    1⤵
    • Creates scheduled task(s)
    PID:3904
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Query /XML /TN nMQUF5AE494a
    1⤵
      PID:4756
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4724 -ip 4724
      1⤵
        PID:364
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 604
        1⤵
        • Program crash
        PID:5020
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN nMQUF5AE494a > C:\Users\Admin\AppData\Local\Temp\oYzilDK.xml
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2552
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4724 -ip 4724
        1⤵
          PID:4700
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4724 -ip 4724
          1⤵
            PID:212
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4724 -ip 4724
            1⤵
              PID:3868
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4724 -ip 4724
              1⤵
                PID:5116
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4724 -ip 4724
                1⤵
                  PID:3620
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4724 -ip 4724
                  1⤵
                    PID:540
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4724 -ip 4724
                    1⤵
                      PID:3524
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4724 -ip 4724
                      1⤵
                        PID:1788
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4724 -ip 4724
                        1⤵
                          PID:2344
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4724 -ip 4724
                          1⤵
                            PID:1200
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4724 -ip 4724
                            1⤵
                              PID:2236
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4724 -ip 4724
                              1⤵
                                PID:2072
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4724 -ip 4724
                                1⤵
                                  PID:2404
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4724 -ip 4724
                                  1⤵
                                    PID:3268
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4724 -ip 4724
                                    1⤵
                                      PID:3100
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4724 -ip 4724
                                      1⤵
                                        PID:2460

                                      Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            • C:\Users\Admin\AppData\Local\Temp\5c6613e8d46100b10bac5a019aa60cb1.exe

                                              Filesize

                                              23KB

                                              MD5

                                              4cddf97b51e52a3eaa8ce1d542a7e6c1

                                              SHA1

                                              ef2c008f7d872fd691c0c234fa4a2126f434b7a2

                                              SHA256

                                              a3b06b7d48cfcf3afff3b9263e35eb4472b8122dc6cbcf4b821dad1401e9d719

                                              SHA512

                                              e2d6462b2493306b83606223f6e7bfcbe721b08aea69ad472fd186ebe64722c712b15b8aac85aa655b8df276d7cb4568e997178e2604b0313b2f06f797b7cd86

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

                                              Filesize

                                              1KB

                                              MD5

                                              6c77dfada522f1b4d2fe31d529e050b8

                                              SHA1

                                              9e8ead2fa94623aadb79d88c418656a064553a5f

                                              SHA256

                                              f9d2b7752b568402b4d47c77fe32317e27f5ca06fddbb30784ebf3d4a164a14c

                                              SHA512

                                              9e811c5403a7865ecdd1b513b657e01a55ea31bf0ceda6d8f7a1e2e425922d29703afd205e88d00788dc7841c75a7ea83c45fdff9708b0a046aaab0dc6a4136b

                                            • memory/2332-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/2332-3-0x00000000018C0000-0x000000000193E000-memory.dmp

                                              Filesize

                                              504KB

                                            • memory/2332-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/2332-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/4724-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/4724-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/4724-17-0x00000000018D0000-0x000000000194E000-memory.dmp

                                              Filesize

                                              504KB

                                            • memory/4724-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                              Filesize

                                              364KB

                                            • memory/4724-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB