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Analysis

  • max time kernel
    146s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/02/2024, 18:09

General

  • Target

    a2696c965faa862d1f4675bf01bd1050.exe

  • Size

    3.9MB

  • MD5

    a2696c965faa862d1f4675bf01bd1050

  • SHA1

    c9f64c9b068e69604122d97e0eda73a33faa1c9e

  • SHA256

    65399374203d2bef83c8843614018d3e8ed0f1b5e2fdf12fb0d78018b5b401a5

  • SHA512

    f4ee42a8b5e84d9b6642dd37207473a932234827e703ab052b0c4884b641067f41d061c24b966739444f13f03a3550aa5c564111b598d19fd50ba9f3a846853c

  • SSDEEP

    98304:TO59MpBrALiOcakcibiqhMbMgOn7n0bcakcibiqhySnJ1UO6L+cakcibiqhMbMgo:VrKiOdlirybMgOnkdlirgSDy+dlirybo

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 1 IoCs
  • 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\a2696c965faa862d1f4675bf01bd1050.exe
    "C:\Users\Admin\AppData\Local\Temp\a2696c965faa862d1f4675bf01bd1050.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4232
    • C:\Users\Admin\AppData\Local\Temp\a2696c965faa862d1f4675bf01bd1050.exe
      C:\Users\Admin\AppData\Local\Temp\a2696c965faa862d1f4675bf01bd1050.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:220
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\a2696c965faa862d1f4675bf01bd1050.exe" /TN uaoC9gG096b7 /F
        3⤵
        • Creates scheduled task(s)
        PID:2824
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN uaoC9gG096b7 > C:\Users\Admin\AppData\Local\Temp\zWk8uZbSb.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1072
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN uaoC9gG096b7
          4⤵
            PID:2340
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 620
          3⤵
          • Program crash
          PID:4772
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 600
          3⤵
          • Program crash
          PID:4508
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 640
          3⤵
          • Program crash
          PID:1204
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 636
          3⤵
          • Program crash
          PID:1892
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 636
          3⤵
          • Program crash
          PID:4044
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 800
          3⤵
          • Program crash
          PID:4392
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 1496
          3⤵
          • Program crash
          PID:4240
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 1936
          3⤵
          • Program crash
          PID:1604
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 2148
          3⤵
          • Program crash
          PID:3328
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 1956
          3⤵
          • Program crash
          PID:2928
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 1988
          3⤵
          • Program crash
          PID:1336
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 2156
          3⤵
          • Program crash
          PID:2888
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 1952
          3⤵
          • Program crash
          PID:3280
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 1968
          3⤵
          • Program crash
          PID:3360
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 2140
          3⤵
          • Program crash
          PID:3660
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 2152
          3⤵
          • Program crash
          PID:316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 2112
          3⤵
          • Program crash
          PID:2424
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 604
          3⤵
          • Program crash
          PID:5064
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 220 -ip 220
      1⤵
        PID:3664
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 220 -ip 220
        1⤵
          PID:836
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 220 -ip 220
          1⤵
            PID:2908
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 220 -ip 220
            1⤵
              PID:3484
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 220 -ip 220
              1⤵
                PID:4932
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 220 -ip 220
                1⤵
                  PID:2848
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 220 -ip 220
                  1⤵
                    PID:1632
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 220 -ip 220
                    1⤵
                      PID:952
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 220 -ip 220
                      1⤵
                        PID:3520
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 220 -ip 220
                        1⤵
                          PID:3584
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 220 -ip 220
                          1⤵
                            PID:2800
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 220 -ip 220
                            1⤵
                              PID:2412
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 220 -ip 220
                              1⤵
                                PID:4900
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 220 -ip 220
                                1⤵
                                  PID:3172
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 220 -ip 220
                                  1⤵
                                    PID:2396
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 220 -ip 220
                                    1⤵
                                      PID:2320
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 220 -ip 220
                                      1⤵
                                        PID:3568
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 220 -ip 220
                                        1⤵
                                          PID:4600

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\a2696c965faa862d1f4675bf01bd1050.exe

                                          Filesize

                                          3.9MB

                                          MD5

                                          6a3ab382e2f8cff4160093bc5668470a

                                          SHA1

                                          2e34f550f81cbfb07805bec707da7345f0efb33c

                                          SHA256

                                          ec365af52a33692c39572c1ead3f5e8c8deb44f7b20378b5ae9e926aaf343c7e

                                          SHA512

                                          bc9d61fa82f0114963b37b5e9661c285c54163a9461855147d276892ff82a1ff0050152e4d82dc3d6f1a78230ba6114c3d7f2977c4ee5f7ab7844a00d696722a

                                        • C:\Users\Admin\AppData\Local\Temp\zWk8uZbSb.xml

                                          Filesize

                                          1KB

                                          MD5

                                          fd23ef42ab33bc21825a7c5b6678ece8

                                          SHA1

                                          7eacf26cfe4edf4631fa26d6995cd27a05a0f779

                                          SHA256

                                          ecde9965d19c8716a31782ef10f595a3522e75463bed00912e8a348c4852047b

                                          SHA512

                                          d61127ebab3c65b7b2cce04f37c819a2ff09e07ec93de50007e5d6360aa333c6ad30573952d6da38dcfcb894b9149586bbfeb16f2706d156b45e0d29b36e721f

                                        • memory/220-15-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/220-17-0x0000000001710000-0x000000000178E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/220-22-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/220-24-0x00000000004B0000-0x000000000051B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/220-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4232-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4232-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4232-2-0x0000000001720000-0x000000000179E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4232-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB