Analysis

  • max time kernel
    142s
  • max time network
    155s
  • 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, 15:05

General

  • Target

    b7b2d0a917e0276f9e7127054cfe58f1.exe

  • Size

    7.8MB

  • MD5

    b7b2d0a917e0276f9e7127054cfe58f1

  • SHA1

    89d6cfa875dff9cf5e5d6a28a2e208edcc49efa3

  • SHA256

    a0f29e6c38325763625e7a49881cf1e340e13ced122ab00ad2e1e73e4bd99008

  • SHA512

    1574891615a118bd50f1309c04641ac780f2bb76f57781c4fc3f4415914f49336cc99822a81d8d6b20aeabf0624c7c57b0e48c0b7490b9caee70c1b0c0add346

  • SSDEEP

    196608:R2SGaSqHdlirybMgOnkdlirPUedlirybMgOnkdlirO02MCOdlirybMgOnkdlirPY:ORmbMrn7U0bMrntSEbMrn7U0bMrn

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 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\b7b2d0a917e0276f9e7127054cfe58f1.exe
    "C:\Users\Admin\AppData\Local\Temp\b7b2d0a917e0276f9e7127054cfe58f1.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4572
    • C:\Users\Admin\AppData\Local\Temp\b7b2d0a917e0276f9e7127054cfe58f1.exe
      C:\Users\Admin\AppData\Local\Temp\b7b2d0a917e0276f9e7127054cfe58f1.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1116
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\b7b2d0a917e0276f9e7127054cfe58f1.exe" /TN v3dGbWFyc353 /F
        3⤵
        • Creates scheduled task(s)
        PID:4748
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN v3dGbWFyc353 > C:\Users\Admin\AppData\Local\Temp\1iqFAb.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4716
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN v3dGbWFyc353
          4⤵
            PID:3872
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 604
          3⤵
          • Program crash
          PID:3848
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 632
          3⤵
          • Program crash
          PID:376
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 640
          3⤵
          • Program crash
          PID:936
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 664
          3⤵
          • Program crash
          PID:2244
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 664
          3⤵
          • Program crash
          PID:4964
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 836
          3⤵
          • Program crash
          PID:2004
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1468
          3⤵
          • Program crash
          PID:3808
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1924
          3⤵
          • Program crash
          PID:3380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 2144
          3⤵
          • Program crash
          PID:4324
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1884
          3⤵
          • Program crash
          PID:5080
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1928
          3⤵
          • Program crash
          PID:452
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1968
          3⤵
          • Program crash
          PID:2024
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1932
          3⤵
          • Program crash
          PID:2652
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 2240
          3⤵
          • Program crash
          PID:876
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1928
          3⤵
          • Program crash
          PID:1812
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 2112
          3⤵
          • Program crash
          PID:1948
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 628
          3⤵
          • Program crash
          PID:3040
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1116 -ip 1116
      1⤵
        PID:3144
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1116 -ip 1116
        1⤵
          PID:2152
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1116 -ip 1116
          1⤵
            PID:2024
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1116 -ip 1116
            1⤵
              PID:2768
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1116 -ip 1116
              1⤵
                PID:4084
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1116 -ip 1116
                1⤵
                  PID:3700
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1116 -ip 1116
                  1⤵
                    PID:1740
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1116 -ip 1116
                    1⤵
                      PID:2192
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1116 -ip 1116
                      1⤵
                        PID:4620
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1116 -ip 1116
                        1⤵
                          PID:1844
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1116 -ip 1116
                          1⤵
                            PID:4152
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1116 -ip 1116
                            1⤵
                              PID:3824
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1116 -ip 1116
                              1⤵
                                PID:4696
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1116 -ip 1116
                                1⤵
                                  PID:4508
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 1116 -ip 1116
                                  1⤵
                                    PID:1508
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4292 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
                                    1⤵
                                      PID:4048
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 1116 -ip 1116
                                      1⤵
                                        PID:5016
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 1116 -ip 1116
                                        1⤵
                                          PID:4620

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\1iqFAb.xml

                                          Filesize

                                          1KB

                                          MD5

                                          91ca8b083fca8f92f8d723fe0c5cbfc5

                                          SHA1

                                          86e09b954dc49f820fad6b17de72b461bdf02638

                                          SHA256

                                          7d69cbe1eab392c98a457094bb764fc464cf625cde4176e1174b11ed305f279a

                                          SHA512

                                          d2ae2e57690e7246a1575b9e2dda57cf86b3baf91b51b8b7dec3be2e3b2b0b5ee51fb71bf9bee7c517864b8b5e2f356bc1e6af8036ea28569b08a4d117b369e5

                                        • C:\Users\Admin\AppData\Local\Temp\b7b2d0a917e0276f9e7127054cfe58f1.exe

                                          Filesize

                                          7.0MB

                                          MD5

                                          3027e061d7f6f9e6287af4e841bb2d72

                                          SHA1

                                          f6e664d91768572aae33b9c210dd5f13df04e779

                                          SHA256

                                          3367043a3d46aa474bf741385391bd171f3b7c40cc665cb7d7a4988d42681042

                                          SHA512

                                          53729e88bf7b66dea24175cd088037d85550aee0d3ae14ebd6dd3fd92fd96c3241eef047064c4b32652e80c09b73ea8daaf5457727934c076790174a35c59f4b

                                        • memory/1116-17-0x0000000001720000-0x000000000179E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1116-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1116-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1116-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/1116-40-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4572-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/4572-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/4572-4-0x0000000001720000-0x000000000179E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/4572-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB