Analysis

  • max time kernel
    151s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-06-2022 17:05

General

  • Target

    62d2ffb7db9863048a07bddb5a61b5e9146a779152fefa5a5e5e5151db9b1a4a.exe

  • Size

    106KB

  • MD5

    301ea7a68e57be3232fb9620bf6a1000

  • SHA1

    d634b8bbb34370a50e1658833662736724d5e40b

  • SHA256

    62d2ffb7db9863048a07bddb5a61b5e9146a779152fefa5a5e5e5151db9b1a4a

  • SHA512

    5509575bf1ad2424ae0e3ca7737fde48f0aad807c2ef320d50deb62990ba85a50f418ceb74a6f0add2c6dbcad7e82d9ce4db3a4922c0435aa6d0c2f552c7de5b

Malware Config

Signatures

  • Detect XtremeRAT Payload 4 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\62d2ffb7db9863048a07bddb5a61b5e9146a779152fefa5a5e5e5151db9b1a4a.exe
    "C:\Users\Admin\AppData\Local\Temp\62d2ffb7db9863048a07bddb5a61b5e9146a779152fefa5a5e5e5151db9b1a4a.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2628
    • C:\Users\Admin\AppData\Local\Temp\3582-490\62d2ffb7db9863048a07bddb5a61b5e9146a779152fefa5a5e5e5151db9b1a4a.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\62d2ffb7db9863048a07bddb5a61b5e9146a779152fefa5a5e5e5151db9b1a4a.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3268
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:3924
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3924 -s 480
            4⤵
            • Program crash
            PID:2172
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3924 -s 488
            4⤵
            • Program crash
            PID:3444
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
          3⤵
            PID:4244
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3924 -ip 3924
        1⤵
          PID:3980
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3924 -ip 3924
          1⤵
            PID:4248

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Persistence

          Change Default File Association

          1
          T1042

          Defense Evasion

          Modify Registry

          1
          T1112

          Credential Access

          Credentials in Files

          1
          T1081

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          2
          T1082

          Collection

          Data from Local System

          1
          T1005

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\3582-490\62d2ffb7db9863048a07bddb5a61b5e9146a779152fefa5a5e5e5151db9b1a4a.exe
            Filesize

            65KB

            MD5

            d1e362994febbcc4b56959f50b2ce10a

            SHA1

            40d2122f90c833d38994a0fe2e6b27cdb2b22469

            SHA256

            d2222bea117abbaf9240698fdfc77ab4b30d29223b09bef9f53de126f296852b

            SHA512

            75076e1d4604f389bf503a36217c36713f610e199b622d7d0cf87102f623ee2844db244963bf34060a37de66c068b7c97f81f3cf3ee66b321c0c9439c6f5e13a

          • C:\Users\Admin\AppData\Local\Temp\3582-490\62d2ffb7db9863048a07bddb5a61b5e9146a779152fefa5a5e5e5151db9b1a4a.exe
            Filesize

            65KB

            MD5

            d1e362994febbcc4b56959f50b2ce10a

            SHA1

            40d2122f90c833d38994a0fe2e6b27cdb2b22469

            SHA256

            d2222bea117abbaf9240698fdfc77ab4b30d29223b09bef9f53de126f296852b

            SHA512

            75076e1d4604f389bf503a36217c36713f610e199b622d7d0cf87102f623ee2844db244963bf34060a37de66c068b7c97f81f3cf3ee66b321c0c9439c6f5e13a

          • memory/3268-130-0x0000000000000000-mapping.dmp
          • memory/3924-133-0x0000000000000000-mapping.dmp
          • memory/3924-134-0x0000000010000000-0x000000001004A000-memory.dmp
            Filesize

            296KB