Analysis

  • max time kernel
    34s
  • max time network
    71s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/03/2024, 16:38

General

  • Target
    b7e0259514ec69af545cee9a8ff12599.exe
  • Size 3.9MB
  • Sample240306-t5mzeade7v
  • SHA256 ade06dfdd2624102ea6949c67fd85c8958e86aead97cbec09c5f583b4ea32a91
  • MD5 SHA1 SHA512 SSDEEP
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 1 IoCs
  • Program crash 16 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\b7e0259514ec69af545cee9a8ff12599.exe
    "C:\Users\Admin\AppData\Local\Temp\b7e0259514ec69af545cee9a8ff12599.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2884
    • C:\Users\Admin\AppData\Local\Temp\b7e0259514ec69af545cee9a8ff12599.exe
      C:\Users\Admin\AppData\Local\Temp\b7e0259514ec69af545cee9a8ff12599.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3764
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\b7e0259514ec69af545cee9a8ff12599.exe" /TN s1xY9tnhebe4 /F
        3⤵
        • Creates scheduled task(s)
        PID:2656
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN s1xY9tnhebe4 > C:\Users\Admin\AppData\Local\Temp\DnVK3U4HP.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2892
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN s1xY9tnhebe4
          4⤵
            PID:2860
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 616
          3⤵
          • Program crash
          PID:3244
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 632
          3⤵
          • Program crash
          PID:940
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 740
          3⤵
          • Program crash
          PID:5088
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 760
          3⤵
          • Program crash
          PID:3484
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 760
          3⤵
          • Program crash
          PID:3696
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 796
          3⤵
          • Program crash
          PID:3752
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 1480
          3⤵
          • Program crash
          PID:904
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 1920
          3⤵
          • Program crash
          PID:3300
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 2144
          3⤵
          • Program crash
          PID:3508
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 1880
          3⤵
          • Program crash
          PID:3576
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 2128
          3⤵
          • Program crash
          PID:5088
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 1956
          3⤵
          • Program crash
          PID:3132
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 1996
          3⤵
          • Program crash
          PID:3452
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 1880
          3⤵
          • Program crash
          PID:1076
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 2124
          3⤵
          • Program crash
          PID:3728
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 1944
          3⤵
          • Program crash
          PID:1216
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3764 -ip 3764
      1⤵
        PID:2624
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3764 -ip 3764
        1⤵
          PID:668
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3764 -ip 3764
          1⤵
            PID:2640
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3764 -ip 3764
            1⤵
              PID:376
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3764 -ip 3764
              1⤵
                PID:2592
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3764 -ip 3764
                1⤵
                  PID:3000
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3764 -ip 3764
                  1⤵
                    PID:3092
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3764 -ip 3764
                    1⤵
                      PID:1324
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3764 -ip 3764
                      1⤵
                        PID:4212
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3764 -ip 3764
                        1⤵
                          PID:4492
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3764 -ip 3764
                          1⤵
                            PID:1608
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3764 -ip 3764
                            1⤵
                              PID:864
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3764 -ip 3764
                              1⤵
                                PID:992
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 3764 -ip 3764
                                1⤵
                                  PID:628
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 3764 -ip 3764
                                  1⤵
                                    PID:4612
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 3764 -ip 3764
                                    1⤵
                                      PID:2644

                                    Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

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                                          Downloads

                                          DnVK3U4HP.xml

                                          • Path C:\Users\Admin\AppData\Local\Temp\DnVK3U4HP.xml
                                          • Size 1KB
                                          • SHA256 dfa55c706630df8688a2b89cf1aabc1a2d9ceb5faab8b880f1e91fb017590f37
                                          • MD5 SHA1 SHA512

                                          b7e0259514ec69af545cee9a8ff12599.exe

                                          • Path C:\Users\Admin\AppData\Local\Temp\b7e0259514ec69af545cee9a8ff12599.exe
                                          • Size 3.9MB
                                          • SHA256 b7fe338ad5e28890f0799ffc26d5cace63ed6f51ebefb5a8f4cac353b5b89983
                                          • MD5 SHA1 SHA512 SSDEEP

                                          memory/2884-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          memory/2884-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          memory/2884-2-0x0000000025040000-0x00000000250BE000-memory.dmp

                                          memory/2884-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          memory/3764-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          memory/3764-17-0x0000000025030000-0x00000000250AE000-memory.dmp

                                          memory/3764-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          memory/3764-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          memory/3764-41-0x0000000000400000-0x000000000065C000-memory.dmp