Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/01/2024, 04:20

General

  • Target

    5c1e76048e0f191c44de22640166cb47.exe

  • Size

    3.9MB

  • MD5

    5c1e76048e0f191c44de22640166cb47

  • SHA1

    f645771e71b7da721e423ee78cb658601eb8b4c3

  • SHA256

    d2302eb1e163569ff8382016f03ac8887ca204447278bfa4c6f25f304f001737

  • SHA512

    b0192d35993dd92f0bc44e9ee8f71ddf28f688ff0f2453c6d61ad5bffd937a0717d45ed6b83612aef9b6cc551deb64b6ee4dde4e4fc62e4c062d273d5b16ebb6

  • SSDEEP

    98304:5o33UlksEycXy67D2i7D3xkOxYwpKvNpVdbQOD2i7D3xkOxYwpKkRAIwywj92WD7:5oUGsEycCUh7FkNqK5pzh7FkNqKQpSTn

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\5c1e76048e0f191c44de22640166cb47.exe
    "C:\Users\Admin\AppData\Local\Temp\5c1e76048e0f191c44de22640166cb47.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1784
    • C:\Users\Admin\AppData\Local\Temp\5c1e76048e0f191c44de22640166cb47.exe
      C:\Users\Admin\AppData\Local\Temp\5c1e76048e0f191c44de22640166cb47.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:4972
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\5c1e76048e0f191c44de22640166cb47.exe" /TN EftJtVnu5bdb /F
        3⤵
        • Creates scheduled task(s)
        PID:1208
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN EftJtVnu5bdb > C:\Users\Admin\AppData\Local\Temp\4WqDM0dXe.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1256
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN EftJtVnu5bdb
          4⤵
            PID:3384
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 616
          3⤵
          • Program crash
          PID:3560
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 600
          3⤵
          • Program crash
          PID:3836
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 724
          3⤵
          • Program crash
          PID:2292
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 644
          3⤵
          • Program crash
          PID:1060
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 644
          3⤵
          • Program crash
          PID:1496
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 728
          3⤵
          • Program crash
          PID:2664
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 1468
          3⤵
          • Program crash
          PID:4976
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 1924
          3⤵
          • Program crash
          PID:3168
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 2148
          3⤵
          • Program crash
          PID:1600
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 1936
          3⤵
          • Program crash
          PID:3184
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 2172
          3⤵
          • Program crash
          PID:2572
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 1924
          3⤵
          • Program crash
          PID:2632
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 2140
          3⤵
          • Program crash
          PID:2188
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 1984
          3⤵
          • Program crash
          PID:1924
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 2204
          3⤵
          • Program crash
          PID:2300
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 2196
          3⤵
          • Program crash
          PID:1208
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 1936
          3⤵
          • Program crash
          PID:1060
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 756
          3⤵
          • Program crash
          PID:1276
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4972 -ip 4972
      1⤵
        PID:3376
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4972 -ip 4972
        1⤵
          PID:3924
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4972 -ip 4972
          1⤵
            PID:4668
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4972 -ip 4972
            1⤵
              PID:2948
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4972 -ip 4972
              1⤵
                PID:4324
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4972 -ip 4972
                1⤵
                  PID:1932
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4972 -ip 4972
                  1⤵
                    PID:3204
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4972 -ip 4972
                    1⤵
                      PID:4392
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4972 -ip 4972
                      1⤵
                        PID:780
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4972 -ip 4972
                        1⤵
                          PID:4060
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4972 -ip 4972
                          1⤵
                            PID:4044
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4972 -ip 4972
                            1⤵
                              PID:1040
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4972 -ip 4972
                              1⤵
                                PID:3664
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4972 -ip 4972
                                1⤵
                                  PID:4768
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4972 -ip 4972
                                  1⤵
                                    PID:672
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4972 -ip 4972
                                    1⤵
                                      PID:2564
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4972 -ip 4972
                                      1⤵
                                        PID:5104
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4972 -ip 4972
                                        1⤵
                                          PID:452

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\4WqDM0dXe.xml

                                          Filesize

                                          1KB

                                          MD5

                                          611c567731778ac27538f212a0166b89

                                          SHA1

                                          042f46b0ba6240143ec197e86aaa0f84da15c8c5

                                          SHA256

                                          5d344c42f894f96826388caf1173b8f92111fa4e7b33a3fb457c84a9eb89a93b

                                          SHA512

                                          4a54cb4230dfd7b9c23309b400e65f00e5708d1396fd26f664c699cfad558f79acd1b786043593840f55fa823665be74bc7b433c5c64c68d1b075021d8231d2a

                                        • C:\Users\Admin\AppData\Local\Temp\5c1e76048e0f191c44de22640166cb47.exe

                                          Filesize

                                          3.9MB

                                          MD5

                                          86d883611cf56dd2d1138762007f3178

                                          SHA1

                                          4876569d6d641f9bd7b223781cbbf6719a7242b7

                                          SHA256

                                          52c55a702347fab2c31290d98391322bc01903a1f67854f7f6e5ab10debd02fb

                                          SHA512

                                          df6796f356b280984a67e5c68cd38e43ada2e15b6ccd51ddb09f9df2dcad1eeac762806e007c18b6ad702b8ee7b57702c639e03e43aa1a0efb8a0ae060023358

                                        • memory/1784-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1784-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1784-3-0x0000000025010000-0x000000002508E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1784-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4972-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4972-16-0x0000000001730000-0x00000000017AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4972-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4972-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/4972-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB