Analysis

  • max time kernel
    155s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-01-2024 12:25

General

  • Target

    53839921b806cd18c22b174ef7c6ed7b.exe

  • Size

    3.9MB

  • MD5

    53839921b806cd18c22b174ef7c6ed7b

  • SHA1

    ddcdcd9b6cd3ad02875ff8fb14617db7360d2c4e

  • SHA256

    2510bd0349ad32f358f35263ac2698a4c6023e6d84efd356827c058de03692b6

  • SHA512

    8b2a614cac0a4f9fc9a572c660cc5761a1937f49b5c1e4a6c83850a69f6469fd41af96be6b973115d096a73e3912994329a2979d591386da5749280b889d4920

  • SSDEEP

    98304:mnQ9oSH9cakcibiqhlTyx7oXX0/EqcakcibiqhJSLVaRqHxnj9cakcibiqhlTyxo:mQPH9dlirnuqXEMqdlirnSk8Hxnj9dlM

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 5 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\53839921b806cd18c22b174ef7c6ed7b.exe
    "C:\Users\Admin\AppData\Local\Temp\53839921b806cd18c22b174ef7c6ed7b.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1336
    • C:\Users\Admin\AppData\Local\Temp\53839921b806cd18c22b174ef7c6ed7b.exe
      C:\Users\Admin\AppData\Local\Temp\53839921b806cd18c22b174ef7c6ed7b.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\53839921b806cd18c22b174ef7c6ed7b.exe" /TN aMYATtOZda0c /F
        3⤵
        • Creates scheduled task(s)
        PID:988
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN aMYATtOZda0c > C:\Users\Admin\AppData\Local\Temp\eEc08pAvr.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:392
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN aMYATtOZda0c
          4⤵
            PID:3108
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 612
          3⤵
          • Program crash
          PID:3964
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 652
          3⤵
          • Program crash
          PID:748
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 716
          3⤵
          • Program crash
          PID:3420
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 660
          3⤵
          • Program crash
          PID:2648
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 660
          3⤵
          • Program crash
          PID:5032
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2004 -ip 2004
      1⤵
        PID:1436
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2004 -ip 2004
        1⤵
          PID:796
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2004 -ip 2004
          1⤵
            PID:4440
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2004 -ip 2004
            1⤵
              PID:1992
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2004 -ip 2004
              1⤵
                PID:3320

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Temp\53839921b806cd18c22b174ef7c6ed7b.exe

                Filesize

                3.9MB

                MD5

                faf1c864a6341005a31af8f7bc5a0aa4

                SHA1

                6d54fda3a51dc7158a9fa125111a11a4925c4432

                SHA256

                e34ebcaf43774b1c38084a405609e0b69f8e07fcba1cfbb5601f7fc8a0d73511

                SHA512

                f4e397de6a5618f93c6a018f6e8205fe92e19ed19b85c1f936ec3d708d3dd4166fb906269c5a46f38ea3d46f059bf8b5f772e42fa0854239919181fe2d496bf6

              • C:\Users\Admin\AppData\Local\Temp\eEc08pAvr.xml

                Filesize

                1KB

                MD5

                bfce041262fd60d840a3a6bd2e82c900

                SHA1

                6e65387545f472628f99c8ad2cbd27b225959c56

                SHA256

                fd33212c60a9a491258b6372d12a2afe6ff041c1d74ec18f88c4955d3696046c

                SHA512

                969b55fdc822854c6afc834d8dc009654fc6703bca41a6a47a3778dcfa60044a84c1e01603492dcb81fe368387cf04e8a68f2631c6c669530736dc87c02ea2bb

              • memory/1336-0-0x0000000000400000-0x000000000065C000-memory.dmp

                Filesize

                2.4MB

              • memory/1336-1-0x0000000000400000-0x000000000046B000-memory.dmp

                Filesize

                428KB

              • memory/1336-4-0x0000000001730000-0x00000000017AE000-memory.dmp

                Filesize

                504KB

              • memory/1336-13-0x0000000000400000-0x000000000046B000-memory.dmp

                Filesize

                428KB

              • memory/2004-14-0x0000000000400000-0x000000000065C000-memory.dmp

                Filesize

                2.4MB

              • memory/2004-16-0x0000000025070000-0x00000000250EE000-memory.dmp

                Filesize

                504KB

              • memory/2004-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                Filesize

                428KB

              • memory/2004-23-0x0000000000400000-0x000000000045B000-memory.dmp

                Filesize

                364KB

              • memory/2004-40-0x0000000000400000-0x000000000065C000-memory.dmp

                Filesize

                2.4MB