Analysis

  • max time kernel
    154s
  • 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
    22-12-2023 11:06

General

  • Target

    8742685c0918b4b6aed90ef2eac2f612.exe

  • Size

    3.0MB

  • MD5

    8742685c0918b4b6aed90ef2eac2f612

  • SHA1

    d0ac9014c4f30909b28b32945d8619f3873c89ed

  • SHA256

    a7ba5cc405fbac1a9c5a8a67d6b01ea15e5551959fdeb995bc0648de1e74520b

  • SHA512

    1c710d5bef3741233f5772aa4c6fb260faa9e17349541fa0cbadee3dc7b6d2678540e204d2fa9e0cc859a81b99335b77b4832ca3b2ddb1881930e9fc3e015ef7

  • SSDEEP

    49152:6DTzFxbKO5BBbngcakLVy5dv5sgpkB5+PcakLTSsiYMD4wPnQJcakLVy5dv5sgp4:6DTJxf5L7gcakhy595sgp9cak/SsiTDj

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 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\8742685c0918b4b6aed90ef2eac2f612.exe
    "C:\Users\Admin\AppData\Local\Temp\8742685c0918b4b6aed90ef2eac2f612.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\AppData\Local\Temp\8742685c0918b4b6aed90ef2eac2f612.exe
      C:\Users\Admin\AppData\Local\Temp\8742685c0918b4b6aed90ef2eac2f612.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4644
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\8742685c0918b4b6aed90ef2eac2f612.exe" /TN 91YuFL8m6860 /F
        3⤵
        • Creates scheduled task(s)
        PID:5088
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN 91YuFL8m6860 > C:\Users\Admin\AppData\Local\Temp\HqyoXYV.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4868
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 620
        3⤵
        • Program crash
        PID:3296
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 632
        3⤵
        • Program crash
        PID:4092
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 724
        3⤵
        • Program crash
        PID:3508
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 728
        3⤵
        • Program crash
        PID:1424
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 728
        3⤵
        • Program crash
        PID:1512
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 780
        3⤵
        • Program crash
        PID:4716
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 1472
        3⤵
        • Program crash
        PID:1616
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 1924
        3⤵
        • Program crash
        PID:1208
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 2144
        3⤵
        • Program crash
        PID:4344
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 1940
        3⤵
        • Program crash
        PID:4212
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 2152
        3⤵
        • Program crash
        PID:3128
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 2172
        3⤵
        • Program crash
        PID:4012
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 1920
        3⤵
        • Program crash
        PID:5088
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 2148
        3⤵
        • Program crash
        PID:3548
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 1988
        3⤵
        • Program crash
        PID:1004
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 1980
        3⤵
        • Program crash
        PID:1152
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 2140
        3⤵
        • Program crash
        PID:3588
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 720
        3⤵
        • Program crash
        PID:1004
  • C:\Windows\SysWOW64\schtasks.exe
    schtasks.exe /Query /XML /TN 91YuFL8m6860
    1⤵
      PID:1168
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4644 -ip 4644
      1⤵
        PID:1348
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4644 -ip 4644
        1⤵
          PID:436
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4644 -ip 4644
          1⤵
            PID:1688
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4644 -ip 4644
            1⤵
              PID:4580
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4644 -ip 4644
              1⤵
                PID:3700
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4644 -ip 4644
                1⤵
                  PID:4876
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4644 -ip 4644
                  1⤵
                    PID:1076
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4644 -ip 4644
                    1⤵
                      PID:3512
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4644 -ip 4644
                      1⤵
                        PID:4356
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4644 -ip 4644
                        1⤵
                          PID:644
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4644 -ip 4644
                          1⤵
                            PID:1576
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4644 -ip 4644
                            1⤵
                              PID:936
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4644 -ip 4644
                              1⤵
                                PID:3116
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4644 -ip 4644
                                1⤵
                                  PID:4892
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 4644 -ip 4644
                                  1⤵
                                    PID:1972
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4644 -ip 4644
                                    1⤵
                                      PID:4612
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 4644 -ip 4644
                                      1⤵
                                        PID:4072
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 616 -p 4644 -ip 4644
                                        1⤵
                                          PID:4900

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\8742685c0918b4b6aed90ef2eac2f612.exe

                                          Filesize

                                          2.2MB

                                          MD5

                                          d19166d470ce439dc635418570879972

                                          SHA1

                                          f9a0e70c27054fd33954bfd7e7ae00a674785d4e

                                          SHA256

                                          465a7c6313132161957a8f9c76d2937125bc8f349cb17932b3b0da93d6c96300

                                          SHA512

                                          dd22cb482b09c601a062e15fea8151af08a318e8a579e35f666a15639a8f2687d873e1ca255e3d78f9a2c00fd1377e2bc224fe3fe61d153aab2ffcf7d7c1af94

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

                                          Filesize

                                          1KB

                                          MD5

                                          316129560d1b9e06e23d2547fa8c8144

                                          SHA1

                                          cd7ffc70aeeb2b7d956dc8cba7fa958cfe1c9a1e

                                          SHA256

                                          16c981b42d3af9fafa97425019623b1070ec0bdeaf21e47f8cfc89e2ea35b035

                                          SHA512

                                          468721185cd02dd87c3f06c0e8fbfc437c35d116da60e0c18765616bf1fee67af8516286d58349fba8353bb6e24c08af9c6a2b990ffe8a5a5101cf8dfd11473f

                                        • memory/2208-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/2208-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/2208-4-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/2208-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4644-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4644-17-0x00000000018E0000-0x000000000195E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4644-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4644-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/4644-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB