Analysis

  • max time kernel
    115s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    11-03-2021 13:03

General

  • Target

    CLEW enquiry 2021.PDF.exe

  • Size

    471KB

  • MD5

    54354bddb2f478a548edda9ff940f0d1

  • SHA1

    539d0510ce7e27cbf18e30952f6ae151cea8eb1e

  • SHA256

    6d72e21f8eed71f706041b12c6efaa66fd12ad213a48415f682a19b0f3e46f17

  • SHA512

    788866f1da8e8fcacefd58be1b144d23cdb69c0132648edf7a79f394d4eb7fe405deeab829be583674943ba2f2c3795da6aeabd6d4dbbf3d6233c04b590ce8dc

Malware Config

Extracted

Family

warzonerat

C2

79.134.225.26:3141

Signatures

  • WarzoneRat, AveMaria

    WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CLEW enquiry 2021.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\CLEW enquiry 2021.PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:548
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HLVbWXuQpLZcU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA8AE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:300
    • C:\Users\Admin\AppData\Local\Temp\CLEW enquiry 2021.PDF.exe
      "{path}"
      2⤵
        PID:516
      • C:\Users\Admin\AppData\Local\Temp\CLEW enquiry 2021.PDF.exe
        "{path}"
        2⤵
          PID:460
        • C:\Users\Admin\AppData\Local\Temp\CLEW enquiry 2021.PDF.exe
          "{path}"
          2⤵
          • Loads dropped DLL
          PID:980

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmpA8AE.tmp

        MD5

        d0de8207f70c9371b7378dfb69402ad8

        SHA1

        e6a994434cfe00e872d6748f0d255a7930a51d6b

        SHA256

        08355611afc893a4c4ae30211a87200566709d32dcb4312023772fa1acf2a950

        SHA512

        3b44b3b65d4d0ef2ff5a6175295a3a7270afdfb5fd935172a0bc01c0eaaed9f46669b33cbdd16393051418414fac87048b1c096c65f716ce7a7a531eca321cba

      • \Users\Admin\AppData\Local\Temp\freebl3.dll

        MD5

        ef12ab9d0b231b8f898067b2114b1bc0

        SHA1

        6d90f27b2105945f9bb77039e8b892070a5f9442

        SHA256

        2b00fc4f541ac10c94e3556ff28e30a801811c36422546a546a445aca3f410f7

        SHA512

        2aa62bfba556ad8f042942dd25aa071ff6677c257904377c1ec956fd9e862abcbf379e0cfd8c630c303a32ece75618c24e3eef58bddb705c427985b944689193

      • \Users\Admin\AppData\Local\Temp\mozglue.dll

        MD5

        75f8cc548cabf0cc800c25047e4d3124

        SHA1

        602676768f9faecd35b48c38a0632781dfbde10c

        SHA256

        fb419a60305f17359e2ac0510233ee80e845885eee60607715c67dd88e501ef0

        SHA512

        ed831c9c769aef3be253c52542cf032afa0a8fa5fe25ca704db65ee6883c608220df7102ac2b99ee9c2e599a0f5db99fd86894a4b169e68440eb1b0d0012672f

      • \Users\Admin\AppData\Local\Temp\msvcp140.dll

        MD5

        109f0f02fd37c84bfc7508d4227d7ed5

        SHA1

        ef7420141bb15ac334d3964082361a460bfdb975

        SHA256

        334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

        SHA512

        46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

      • \Users\Admin\AppData\Local\Temp\nss3.dll

        MD5

        d7858e8449004e21b01d468e9fd04b82

        SHA1

        9524352071ede21c167e7e4f106e9526dc23ef4e

        SHA256

        78758bf7f3b3b5e3477e38354acd32d787bc1286c8bd9b873471b9c195e638db

        SHA512

        1e2c981e6c0ca36c60c6e9cae9548b866d5c524df837095b30d618d9c322def7134c20de820105400dd1b58076b66d90274f67773ac6ba914f611b419babb440

      • \Users\Admin\AppData\Local\Temp\softokn3.dll

        MD5

        471c983513694ac3002590345f2be0da

        SHA1

        6612b9af4ff6830fa9b7d4193078434ef72f775b

        SHA256

        bb3ff746471116c6ad0339fa0522aa2a44a787e33a29c7b27649a054ecd4d00f

        SHA512

        a9b0fb923bc3b567e933de10b141a3e9213640e3d790b4c4d753cf220d55593ae8026102909969ba6bfc22da3b2fcd01e30a9f5a74bd14a0fdec9beaf0fb1410

      • \Users\Admin\AppData\Local\Temp\vcruntime140.dll

        MD5

        7587bf9cb4147022cd5681b015183046

        SHA1

        f2106306a8f6f0da5afb7fc765cfa0757ad5a628

        SHA256

        c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

        SHA512

        0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

      • memory/300-10-0x0000000000000000-mapping.dmp

      • memory/548-8-0x0000000007E00000-0x0000000007E72000-memory.dmp

        Filesize

        456KB

      • memory/548-9-0x0000000000A30000-0x0000000000A62000-memory.dmp

        Filesize

        200KB

      • memory/548-2-0x0000000073F20000-0x000000007460E000-memory.dmp

        Filesize

        6.9MB

      • memory/548-7-0x000000007EF40000-0x000000007EF41000-memory.dmp

        Filesize

        4KB

      • memory/548-6-0x0000000000350000-0x0000000000352000-memory.dmp

        Filesize

        8KB

      • memory/548-5-0x00000000049F0000-0x00000000049F1000-memory.dmp

        Filesize

        4KB

      • memory/548-3-0x0000000000250000-0x0000000000251000-memory.dmp

        Filesize

        4KB

      • memory/980-12-0x0000000000400000-0x000000000055E000-memory.dmp

        Filesize

        1.4MB

      • memory/980-13-0x0000000000405E28-mapping.dmp

      • memory/980-14-0x0000000076071000-0x0000000076073000-memory.dmp

        Filesize

        8KB

      • memory/980-15-0x0000000000400000-0x000000000055E000-memory.dmp

        Filesize

        1.4MB

      • memory/980-16-0x0000000003260000-0x00000000032E4000-memory.dmp

        Filesize

        528KB