Analysis

  • max time kernel
    149s
  • max time network
    141s
  • 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, 13:28

General

  • Target

    a3d25afa1e41d685cf180ee1aefab1a5.exe

  • Size

    6.0MB

  • MD5

    a3d25afa1e41d685cf180ee1aefab1a5

  • SHA1

    e08f19cf4080eb389f11c54592b3d481c9ff0a6d

  • SHA256

    78219257aab2fa2b1beae71ced22cdf1c8e526fe4f5b2109779d3517964eb68a

  • SHA512

    caad661d33d77dd44dafa32f88605aa0bad7eebdd7ce40f910a53b389226c842e02ceb1e48a93209f68b4142813703db06d067a348aaaee4b84128caa0577602

  • SSDEEP

    98304:tzeCY2MO13cakOWZDtQXWry7mBZbkcaksDjGDHRQlywbcakOWZDtQXWry7mBZbkL:FRYkpdiaWry7mbYdfPlbdiaWry7mbYdx

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\a3d25afa1e41d685cf180ee1aefab1a5.exe
    "C:\Users\Admin\AppData\Local\Temp\a3d25afa1e41d685cf180ee1aefab1a5.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Users\Admin\AppData\Local\Temp\a3d25afa1e41d685cf180ee1aefab1a5.exe
      C:\Users\Admin\AppData\Local\Temp\a3d25afa1e41d685cf180ee1aefab1a5.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1268
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 1WOV8tOcae1c > C:\Users\Admin\AppData\Local\Temp\9fN9ZCL.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2100
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN 1WOV8tOcae1c
          4⤵
            PID:4608
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\a3d25afa1e41d685cf180ee1aefab1a5.exe" /TN 1WOV8tOcae1c /F
          3⤵
          • Creates scheduled task(s)
          PID:924
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 616
          3⤵
          • Program crash
          PID:2540
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 628
          3⤵
          • Program crash
          PID:4708
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 660
          3⤵
          • Program crash
          PID:4800
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 604
          3⤵
          • Program crash
          PID:2984
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 752
          3⤵
          • Program crash
          PID:2664
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 800
          3⤵
          • Program crash
          PID:1904
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 1392
          3⤵
          • Program crash
          PID:3324
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 1924
          3⤵
          • Program crash
          PID:4788
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 2144
          3⤵
          • Program crash
          PID:2068
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 1940
          3⤵
          • Program crash
          PID:368
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 2112
          3⤵
          • Program crash
          PID:4244
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 2000
          3⤵
          • Program crash
          PID:4520
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 1976
          3⤵
          • Program crash
          PID:4120
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 1956
          3⤵
          • Program crash
          PID:1544
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 1992
          3⤵
          • Program crash
          PID:3452
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 1964
          3⤵
          • Program crash
          PID:4372
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 660
          3⤵
          • Program crash
          PID:3064
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1268 -ip 1268
      1⤵
        PID:1508
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1268 -ip 1268
        1⤵
          PID:4704
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1268 -ip 1268
          1⤵
            PID:3320
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1268 -ip 1268
            1⤵
              PID:1900
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1268 -ip 1268
              1⤵
                PID:1672
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1268 -ip 1268
                1⤵
                  PID:3816
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1268 -ip 1268
                  1⤵
                    PID:3680
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1268 -ip 1268
                    1⤵
                      PID:4808
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1268 -ip 1268
                      1⤵
                        PID:2452
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1268 -ip 1268
                        1⤵
                          PID:4716
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1268 -ip 1268
                          1⤵
                            PID:2336
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1268 -ip 1268
                            1⤵
                              PID:1424
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 1268 -ip 1268
                              1⤵
                                PID:636
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 1268 -ip 1268
                                1⤵
                                  PID:684
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 1268 -ip 1268
                                  1⤵
                                    PID:4748
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1268 -ip 1268
                                    1⤵
                                      PID:1580
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 648 -p 1268 -ip 1268
                                      1⤵
                                        PID:3092

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Temp\9fN9ZCL.xml

                                        Filesize

                                        1KB

                                        MD5

                                        fbbf761ad914365c3f7971477177c98b

                                        SHA1

                                        18c29e7c39f2f584062b5b962bba0d8ddf831c23

                                        SHA256

                                        2cdac8aa08f9811758ee32031cb64cee3d2516328615499c8443e21f0cafb202

                                        SHA512

                                        833a2514508e91dc460290bbe5312d49daf6835e6c3c94e65310b9b809ed3345724503c9569bafd6f4fee963022a9eb5dffc35d13d3dfcc199e8b619cc69cc9c

                                      • C:\Users\Admin\AppData\Local\Temp\a3d25afa1e41d685cf180ee1aefab1a5.exe

                                        Filesize

                                        167KB

                                        MD5

                                        04ac907be35641ab823afca0c47a51b3

                                        SHA1

                                        3b7d74e85537e09c2cd60183621e7ca1e29445bd

                                        SHA256

                                        9bf9bc4f41a37d19b1606d4aecf3998ef508cb401714faf18753fa08ebbd7dde

                                        SHA512

                                        db52877008c44f9aef534011c30a2a96d0d43679e12d04badcf64f8a300b577f356601c98501d9bef2faf952efbe88a2f4f25e41702437729883e4fa9815d738

                                      • memory/1268-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/1268-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/1268-21-0x0000000025000000-0x000000002507E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/1268-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                        Filesize

                                        364KB

                                      • memory/1268-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/2136-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/2136-3-0x0000000025010000-0x000000002508E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/2136-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/2136-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB