Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/03/2024, 19:34

General

  • Target

    b57fe9e4a279d6547d23ca93e77adafc.exe

  • Size

    3.9MB

  • MD5

    b57fe9e4a279d6547d23ca93e77adafc

  • SHA1

    212efee2c680646baa1f6bcc537d1d6d1fc0290e

  • SHA256

    3d7ef08bc1a28bc5c2fee92e65e580ae04bf7e113562c845c3f5a452f5e18288

  • SHA512

    54135e7744758282303284923f2d815218328e21d7446e4dfd950c51e8efeca503629033260386f627594e51dfd838708058fadafe10f89ee99128ee9be0ce8c

  • SSDEEP

    98304:PkT8NUMrD2i7D3xkOxYwpKq+DYiZrYzRqD2i7D3xkOxYwpKVGh8AhKvZRMIOUx4N:S8hrh7FkNqKpDPr0qh7FkNqKV8hcxOIa

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\b57fe9e4a279d6547d23ca93e77adafc.exe
    "C:\Users\Admin\AppData\Local\Temp\b57fe9e4a279d6547d23ca93e77adafc.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Users\Admin\AppData\Local\Temp\b57fe9e4a279d6547d23ca93e77adafc.exe
      C:\Users\Admin\AppData\Local\Temp\b57fe9e4a279d6547d23ca93e77adafc.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3860
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\b57fe9e4a279d6547d23ca93e77adafc.exe" /TN v8Zki9cgdb8d /F
        3⤵
        • Creates scheduled task(s)
        PID:3716
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN v8Zki9cgdb8d > C:\Users\Admin\AppData\Local\Temp\WO35X52Y.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4360
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN v8Zki9cgdb8d
          4⤵
            PID:3552
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 608
          3⤵
          • Program crash
          PID:3556
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 564
          3⤵
          • Program crash
          PID:2860
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 652
          3⤵
          • Program crash
          PID:1356
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 652
          3⤵
          • Program crash
          PID:2452
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 752
          3⤵
          • Program crash
          PID:4868
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 760
          3⤵
          • Program crash
          PID:2664
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 1484
          3⤵
          • Program crash
          PID:3044
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 1624
          3⤵
          • Program crash
          PID:4840
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 2148
          3⤵
          • Program crash
          PID:3408
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 2156
          3⤵
          • Program crash
          PID:1000
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 1928
          3⤵
          • Program crash
          PID:5080
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 1992
          3⤵
          • Program crash
          PID:320
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 1952
          3⤵
          • Program crash
          PID:2564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 1632
          3⤵
          • Program crash
          PID:4316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 1976
          3⤵
          • Program crash
          PID:748
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 2188
          3⤵
          • Program crash
          PID:1396
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 1940
          3⤵
          • Program crash
          PID:780
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3860 -s 656
          3⤵
          • Program crash
          PID:224
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3860 -ip 3860
      1⤵
        PID:2500
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3860 -ip 3860
        1⤵
          PID:3540
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3860 -ip 3860
          1⤵
            PID:1060
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3860 -ip 3860
            1⤵
              PID:4884
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3860 -ip 3860
              1⤵
                PID:3560
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3860 -ip 3860
                1⤵
                  PID:2384
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3860 -ip 3860
                  1⤵
                    PID:3704
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3860 -ip 3860
                    1⤵
                      PID:5020
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3860 -ip 3860
                      1⤵
                        PID:2024
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3860 -ip 3860
                        1⤵
                          PID:528
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3860 -ip 3860
                          1⤵
                            PID:2064
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3860 -ip 3860
                            1⤵
                              PID:4492
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3860 -ip 3860
                              1⤵
                                PID:4636
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3860 -ip 3860
                                1⤵
                                  PID:952
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3860 -ip 3860
                                  1⤵
                                    PID:1456
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3860 -ip 3860
                                    1⤵
                                      PID:884
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3860 -ip 3860
                                      1⤵
                                        PID:4504
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3860 -ip 3860
                                        1⤵
                                          PID:2144

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\WO35X52Y.xml

                                          Filesize

                                          1KB

                                          MD5

                                          e202a9256a48251812d0da0151056816

                                          SHA1

                                          946fcc1f74fa84be2f7ecaa86d554f6d56296622

                                          SHA256

                                          3b51c3b3e75a9e73989eb1c48a746f4173fb96c10a0e78d56a3ca54db8628a99

                                          SHA512

                                          cc5020287beb6d9ea89469af23c7167a447dc269fd4395c137f86123a7a7b45f6a21c68d32acbce3feda045fc278ac256de748789dee1dfb4b6dc6538ba784c4

                                        • C:\Users\Admin\AppData\Local\Temp\b57fe9e4a279d6547d23ca93e77adafc.exe

                                          Filesize

                                          384KB

                                          MD5

                                          d61a5f4c1ded50f765e03ba3ec6380c2

                                          SHA1

                                          436739fa89f2d62e6c8346449540d72fdb7c1acb

                                          SHA256

                                          da3703f4c19c1c047a41a960e3f21c447f8eb498eea5d60f7bab03f43ed5fe43

                                          SHA512

                                          b445b7261aa8a6733129264376a63b6b9fee441247af6655c4614f4c444395f0447307dbd4279e14a784baf4441e055fb6cc4428fbf9d3b4de2f3cab5e2335c0

                                        • memory/3860-15-0x0000000024000000-0x000000002407E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3860-18-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3860-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3860-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/3860-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4472-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4472-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4472-4-0x0000000025070000-0x00000000250EE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4472-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB