Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-03-2024 15:17

General

  • Target

    bc20ad793164e69ae9ed2666ac3225e5.exe

  • Size

    2.0MB

  • MD5

    bc20ad793164e69ae9ed2666ac3225e5

  • SHA1

    13f99851b862fcab6633290ea61c954f2d2b67a3

  • SHA256

    f8b078db7dab7e7a3bc6dcb94cde6a3988ca852cf9b95499fa59f0936ba7aed6

  • SHA512

    8042414a2f8edc758d8ccc87ac90771211fa6b9289e8431a1f71e44a94b1540e1acc83771256276a54e469c682f84841fdf441b6b9bb2920ee8d22e657f30491

  • SSDEEP

    49152:7ueHCQYhwqHcakLz0ibq6yqhkAWTNJDPXcakLz0ibq6yqh:7ueCQYKqHcakcibiqhkAWTXfcakcibiK

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 17 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\bc20ad793164e69ae9ed2666ac3225e5.exe
    "C:\Users\Admin\AppData\Local\Temp\bc20ad793164e69ae9ed2666ac3225e5.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4364
    • C:\Users\Admin\AppData\Local\Temp\bc20ad793164e69ae9ed2666ac3225e5.exe
      C:\Users\Admin\AppData\Local\Temp\bc20ad793164e69ae9ed2666ac3225e5.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1676
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\bc20ad793164e69ae9ed2666ac3225e5.exe" /TN EvIYV7rY9c10 /F
        3⤵
        • Creates scheduled task(s)
        PID:4628
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN EvIYV7rY9c10 > C:\Users\Admin\AppData\Local\Temp\NxiFGus.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3248
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN EvIYV7rY9c10
          4⤵
            PID:2244
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 612
          3⤵
          • Program crash
          PID:4212
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 620
          3⤵
          • Program crash
          PID:4296
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 652
          3⤵
          • Program crash
          PID:1528
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 724
          3⤵
          • Program crash
          PID:4084
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 656
          3⤵
          • Program crash
          PID:2896
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 708
          3⤵
          • Program crash
          PID:4380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 1472
          3⤵
          • Program crash
          PID:1576
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 1916
          3⤵
          • Program crash
          PID:4396
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 2144
          3⤵
          • Program crash
          PID:3844
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 1956
          3⤵
          • Program crash
          PID:2748
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 1920
          3⤵
          • Program crash
          PID:2444
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 1956
          3⤵
          • Program crash
          PID:4616
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 2104
          3⤵
          • Program crash
          PID:556
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 1924
          3⤵
          • Program crash
          PID:4068
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 1992
          3⤵
          • Program crash
          PID:3872
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 2120
          3⤵
          • Program crash
          PID:4304
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 640
          3⤵
          • Program crash
          PID:748
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1676 -ip 1676
      1⤵
        PID:2320
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1676 -ip 1676
        1⤵
          PID:3800
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1676 -ip 1676
          1⤵
            PID:760
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 1676 -ip 1676
            1⤵
              PID:1164
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1676 -ip 1676
              1⤵
                PID:4404
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 1676 -ip 1676
                1⤵
                  PID:4196
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 1676 -ip 1676
                  1⤵
                    PID:2404
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 1676 -ip 1676
                    1⤵
                      PID:3720
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 1676 -ip 1676
                      1⤵
                        PID:2632
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 1676 -ip 1676
                        1⤵
                          PID:2016
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 1676 -ip 1676
                          1⤵
                            PID:3332
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 1676 -ip 1676
                            1⤵
                              PID:3260
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 1676 -ip 1676
                              1⤵
                                PID:4628
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 1676 -ip 1676
                                1⤵
                                  PID:4036
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1676 -ip 1676
                                  1⤵
                                    PID:3784
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1676 -ip 1676
                                    1⤵
                                      PID:2444
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1676 -ip 1676
                                      1⤵
                                        PID:1012

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

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                                      Downloads

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

                                        Filesize

                                        1KB

                                        MD5

                                        377a9a79fd1c56a51c30d8758361afc5

                                        SHA1

                                        1d5508c7fdb49ff2c0f302fd4d93de21be3b8a9a

                                        SHA256

                                        17d916676cdb3700cec1391409b29f34be3bfba15bacd68c467afbc8c299b1fe

                                        SHA512

                                        f059eaa1c8edec30803be10de8516c38ebc5a83bc689389e7c02db2c3923225d5bbc2b05c1242b2733e7705b05d317e0d3ed723247eff19257b216aee1bb514a

                                      • C:\Users\Admin\AppData\Local\Temp\bc20ad793164e69ae9ed2666ac3225e5.exe

                                        Filesize

                                        2.0MB

                                        MD5

                                        fcc2608e4b478976aef0904b4b72f2e7

                                        SHA1

                                        baa0c21200baac5ab4966a519caa47a04bb30d1a

                                        SHA256

                                        b324a798503026bf684508f475b97ebb3722e203435df276629a6d1ef2c3f3df

                                        SHA512

                                        f373ac451162ee18962a3dec96e40988f11ca23ab76ec09fc8e592217acc5bc7852245f0d27fc9687d106fe03451d15fc8cfb72564568eb4f310db9883e180c1

                                      • memory/1676-15-0x00000000016F0000-0x000000000176E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/1676-18-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/1676-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                        Filesize

                                        364KB

                                      • memory/1676-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/1676-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/4364-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                        Filesize

                                        2.4MB

                                      • memory/4364-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB

                                      • memory/4364-7-0x0000000001720000-0x000000000179E000-memory.dmp

                                        Filesize

                                        504KB

                                      • memory/4364-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                        Filesize

                                        428KB