Analysis

  • max time kernel
    41s
  • max time network
    68s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26/11/2022, 23:55

General

  • Target

    img_0928211.exe

  • Size

    921KB

  • MD5

    5672794169f1beab73201234b407f8f9

  • SHA1

    19b9763d26c8466d6092ecc41318710f549f5886

  • SHA256

    fe5439378961e964d35e1e079c5675111def39ec03f5e87db38132313a618a2f

  • SHA512

    5dd83345e9f2aec11587bcc1a04bd8fecb86206d2f990bf9a754768a207ad011a90a299192bc94c2e38b204d08f484ac6d607c3700b28ad6c12c18d07b7e7c44

  • SSDEEP

    24576:O20gPgFK8vO9SlDGNON2Y2Dd0PiHXBhqB:3KOQlDUXDCPi3BhqB

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\img_0928211.exe
    "C:\Users\Admin\AppData\Local\Temp\img_0928211.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Users\Admin\99o623u41dw\gfcbk.exe
      "C:\Users\Admin\99o623u41dw\gfcbk.exe" arjegv
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:944
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
        3⤵
          PID:1348
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\99O623~1\run.vbs"
          3⤵
            PID:880
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Users\Admin\99O623~1\run.vbs"
            3⤵
              PID:812

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • C:\Users\Admin\99O623~1\KXKRZT~1.JKD

                Filesize

                204KB

                MD5

                5af78a7ae95dc6dbf695b7c467d8b5cf

                SHA1

                10f23008204410a796b973d9650640d8b741fee2

                SHA256

                09eaa6dc4de1fac152662f4a2b50e724a7835b3c7883c3cd41fb67ee1e1fe04d

                SHA512

                39b7d5931a7c2a0d8176fdaa5b4af4a8d1a4d5baac0865fac40d984b890e9ee9748c64361e50d2c4ce4fdc8a7f3503ca0ad9c311faba09e9e40a843dc35431ce

              • C:\Users\Admin\99O623~1\piuqnjuz.NZW

                Filesize

                200B

                MD5

                e7ed5b3ce727a6a3b2880c5425635a53

                SHA1

                9d7cc91df067969232fdd914eab9c72cb2f8227e

                SHA256

                ec00d718336b97497192c9b919e1a3704db4e2bfdef7ddcf69abddf46269fdbc

                SHA512

                d6a8d1b93a17bb11efbfcf996cae9568cd8d4dda7f91d137875bec67b164c4b36a2f6a744cfafc8f194825133b0feaac1b49b457c928becc8ea732bd6a0b9bab

              • C:\Users\Admin\99o623u41dw\arjegv

                Filesize

                280.5MB

                MD5

                e8a49826e98e50df869a51cd31781079

                SHA1

                451437b6d6cc7cb287e114e7beca6ce74fb39d57

                SHA256

                fc22c9533e7109817e21d9a4e6cf1dd800ec8f531914757ffc79f1d7d6886263

                SHA512

                80e3c9b86b35a7ed815d6f16f5869f1d172a2f38b3528ece2ca208df3406aca245517771d408aafeae8fba97a328aadf95a675e305b330f0614cfce6f441c4a1

              • C:\Users\Admin\99o623u41dw\gfcbk.exe

                Filesize

                807KB

                MD5

                205e802415422fa581afd6973e61d0e4

                SHA1

                aa9abf929198f24af7e57f1864a6d370649e2af2

                SHA256

                3c529e81cd390f8d0163131e8a2b2b32fcc8feb465cbdd1680e54be05691ab8c

                SHA512

                8273b63c1d879d73c3f92e4c5bab1469744f2db56f095e826fcdc392d62815e4e4247e46fcab8d90cea59444fd5c61120b674ef74b851b3282507d48113feb59

              • \Users\Admin\99o623u41dw\gfcbk.exe

                Filesize

                807KB

                MD5

                205e802415422fa581afd6973e61d0e4

                SHA1

                aa9abf929198f24af7e57f1864a6d370649e2af2

                SHA256

                3c529e81cd390f8d0163131e8a2b2b32fcc8feb465cbdd1680e54be05691ab8c

                SHA512

                8273b63c1d879d73c3f92e4c5bab1469744f2db56f095e826fcdc392d62815e4e4247e46fcab8d90cea59444fd5c61120b674ef74b851b3282507d48113feb59

              • \Users\Admin\99o623u41dw\gfcbk.exe

                Filesize

                807KB

                MD5

                205e802415422fa581afd6973e61d0e4

                SHA1

                aa9abf929198f24af7e57f1864a6d370649e2af2

                SHA256

                3c529e81cd390f8d0163131e8a2b2b32fcc8feb465cbdd1680e54be05691ab8c

                SHA512

                8273b63c1d879d73c3f92e4c5bab1469744f2db56f095e826fcdc392d62815e4e4247e46fcab8d90cea59444fd5c61120b674ef74b851b3282507d48113feb59

              • \Users\Admin\99o623u41dw\gfcbk.exe

                Filesize

                807KB

                MD5

                205e802415422fa581afd6973e61d0e4

                SHA1

                aa9abf929198f24af7e57f1864a6d370649e2af2

                SHA256

                3c529e81cd390f8d0163131e8a2b2b32fcc8feb465cbdd1680e54be05691ab8c

                SHA512

                8273b63c1d879d73c3f92e4c5bab1469744f2db56f095e826fcdc392d62815e4e4247e46fcab8d90cea59444fd5c61120b674ef74b851b3282507d48113feb59

              • \Users\Admin\99o623u41dw\gfcbk.exe

                Filesize

                807KB

                MD5

                205e802415422fa581afd6973e61d0e4

                SHA1

                aa9abf929198f24af7e57f1864a6d370649e2af2

                SHA256

                3c529e81cd390f8d0163131e8a2b2b32fcc8feb465cbdd1680e54be05691ab8c

                SHA512

                8273b63c1d879d73c3f92e4c5bab1469744f2db56f095e826fcdc392d62815e4e4247e46fcab8d90cea59444fd5c61120b674ef74b851b3282507d48113feb59

              • memory/1960-54-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

                Filesize

                8KB