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Analysis

  • max time kernel
    181s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/10/2022, 09:12

General

  • Target

    249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe

  • Size

    45KB

  • MD5

    696d9a02e0d1000de2852f753c1644ad

  • SHA1

    1ff9a64bf8c876b1d2029464f33eda72a59cb26e

  • SHA256

    249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3

  • SHA512

    8aded539891fe80d264dc3e478a548deffd63ac873034a80038863b1ae2949cfad13321025db5ca48fc53254e32bb5d724fdb3ccbb536d48b0ed34b32fa6ea1f

  • SSDEEP

    768:Q6MDEOgk6guQrhO23k7/9sppE0iKFz89519yFSUKhJJ16c5QFeJ0WZOY0Ag+ae71:gExDPQ9l3ky88x8vTJJ16mQ60WZOY0AP

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • joker

    Joker is an Android malware that targets billing and SMS fraud.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 42 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe
    "C:\Users\Admin\AppData\Local\Temp\249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2332
    • C:\Windows\SysWOW64\wscriPt.exe
      "C:\Windows\system32\wscriPt.exe" "C:\Program Files (x86)\StormII\StormLib.nqm"
      2⤵
        PID:3236
      • C:\Windows\SysWOW64\wscrIpt.exe
        "C:\Windows\system32\wscrIpt.exe" "C:\Windows\system32\pop2.vbs"
        2⤵
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:5012
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" http://www.95081.net/2.htm
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1680
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1680 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:640

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\StormII\StormLib.nqm

      Filesize

      9KB

      MD5

      a26d1b1ca0d52edce481f7c40d7c12ba

      SHA1

      2b87ac768b4763726bc65d1d88aecb7417358863

      SHA256

      627649fbe706ae75bf63d00b251fba80f95ff87ae1987eb83085044d9453c855

      SHA512

      877d6e128a70af7f0782f3ec7c1d13fdf0813e421b659681534ed8e94f33f4c71ad27d5e02a1e79754a430eeb6dbb252e7758422518697b70ee4bea91d2e9a88

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

      Filesize

      471B

      MD5

      d4d443a25ea0e792142718c16af91a0f

      SHA1

      26548c59a5086269e51679a3dca3e7bd83daea28

      SHA256

      b0f96f3b571b7eff330f0109ab82447af0108562bf3937e530028d429adfd3b5

      SHA512

      7f49020d73b47a57fc14e4e3f2346b4b7595070fded5fbce9768310c8ab32837b3a4621f51d36798059df56317aca3e36ff4bbdffaaebb4dd921be5c9239848a

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

      Filesize

      434B

      MD5

      33782348de87a0cccfd87ac9199125af

      SHA1

      b5e47aa56429c9bb814bc557a22259a3c8fd2f6c

      SHA256

      6ca973cd08ed6562ae0aadd965a84727403499f4690601f83338e597d6b08297

      SHA512

      e70212432c5a39238aef2a285ba0de1b745822862530998c2dc4b78c31e2086f78b011ba605df2161548232628b04e0e5020fceb809213d72cd2ed0e98ab2e01

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

      Filesize

      434B

      MD5

      33782348de87a0cccfd87ac9199125af

      SHA1

      b5e47aa56429c9bb814bc557a22259a3c8fd2f6c

      SHA256

      6ca973cd08ed6562ae0aadd965a84727403499f4690601f83338e597d6b08297

      SHA512

      e70212432c5a39238aef2a285ba0de1b745822862530998c2dc4b78c31e2086f78b011ba605df2161548232628b04e0e5020fceb809213d72cd2ed0e98ab2e01

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

      Filesize

      434B

      MD5

      33782348de87a0cccfd87ac9199125af

      SHA1

      b5e47aa56429c9bb814bc557a22259a3c8fd2f6c

      SHA256

      6ca973cd08ed6562ae0aadd965a84727403499f4690601f83338e597d6b08297

      SHA512

      e70212432c5a39238aef2a285ba0de1b745822862530998c2dc4b78c31e2086f78b011ba605df2161548232628b04e0e5020fceb809213d72cd2ed0e98ab2e01

    • C:\Windows\SysWOW64\pop2.vbs

      Filesize

      216B

      MD5

      d2855e074948c9f561a6098941b7042b

      SHA1

      88b524946dc5db7ac956647de59dbb5e8735e8ea

      SHA256

      0de0d449ffae418e267c1d03d9f1d349807ce9a026c265f230cc0bc8fe5f08c6

      SHA512

      2c1269b87584d06c8f61cec6014d308dcd98f672c7c6e467c7063f87130fefad045e0c41cbe1e67fc49767038b8bc29aa60e4856e66b9657a83b6e373df008d0