Analysis

  • max time kernel
    125s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-03-2023 00:15

General

  • Target

    XWorm RAT LATEST/XHVNC.exe

  • Size

    2.2MB

  • MD5

    ef691f617d75f45d10af9405de47e253

  • SHA1

    9be134d2c7549adf7c6678bb4c43b9f65c83214f

  • SHA256

    eaead00ba98021393e7920a2f2f20e70724f716eed0933d50577786ae0289182

  • SHA512

    cfe942f09cc75f44aea2eaef80e4dc6a0ebbba020b0c1cefb7efe8e158a6399fb1f5e41d696b932fac542e39ea7b5872fb1adb7c0753670a57fc0f888ee16c61

  • SSDEEP

    24576:qmErCsazef+APWb6+CILRbTcJiWevOIWr9Lrdl5p0WdaMCtGjC+UbuzoVGBI:qPF+CWb6+CILRncZe65rb5p0ehVCrvT

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XWorm RAT LATEST\XHVNC.exe
    "C:\Users\Admin\AppData\Local\Temp\XWorm RAT LATEST\XHVNC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4700
    • C:\Users\Admin\AppData\Local\Temp\XHVNC.exe
      "C:\Users\Admin\AppData\Local\Temp\XHVNC.exe"
      2⤵
      • Executes dropped EXE
      PID:3784
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3784 -s 1508
        3⤵
        • Program crash
        PID:3596
    • C:\Users\Admin\AppData\Local\Temp\discord.exe
      "C:\Users\Admin\AppData\Local\Temp\discord.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:964
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3784 -ip 3784
    1⤵
      PID:2564

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\XHVNC.exe
      Filesize

      1.9MB

      MD5

      4904329d091687c9deb08d9bd7282e77

      SHA1

      bcf7fcebb52cad605cb4de65bdd077e600475cc7

      SHA256

      e92707537fe99713752f3d3f479fa68a0c8dd80439c13a2bb4ebb36a952b63fd

      SHA512

      b7ba131e9959f2f76aa3008711db9e6f2c4753a232140368be5c8388ab0e25154a31e579ef87fe01a3e4bc83402170bb9fbf242c6f01528455246b793e03fdfb

    • C:\Users\Admin\AppData\Local\Temp\XHVNC.exe
      Filesize

      1.9MB

      MD5

      4904329d091687c9deb08d9bd7282e77

      SHA1

      bcf7fcebb52cad605cb4de65bdd077e600475cc7

      SHA256

      e92707537fe99713752f3d3f479fa68a0c8dd80439c13a2bb4ebb36a952b63fd

      SHA512

      b7ba131e9959f2f76aa3008711db9e6f2c4753a232140368be5c8388ab0e25154a31e579ef87fe01a3e4bc83402170bb9fbf242c6f01528455246b793e03fdfb

    • C:\Users\Admin\AppData\Local\Temp\XHVNC.exe
      Filesize

      1.9MB

      MD5

      4904329d091687c9deb08d9bd7282e77

      SHA1

      bcf7fcebb52cad605cb4de65bdd077e600475cc7

      SHA256

      e92707537fe99713752f3d3f479fa68a0c8dd80439c13a2bb4ebb36a952b63fd

      SHA512

      b7ba131e9959f2f76aa3008711db9e6f2c4753a232140368be5c8388ab0e25154a31e579ef87fe01a3e4bc83402170bb9fbf242c6f01528455246b793e03fdfb

    • C:\Users\Admin\AppData\Local\Temp\discord.exe
      Filesize

      159KB

      MD5

      46a2cc3ad2ade7a6b5551b53636e0abb

      SHA1

      b8eb52479e933c3530ca826fbe59567af3c4f6ec

      SHA256

      f8af311b3903b6ccd62cb62fed4903eb4351b4b886df23f815cbb61a8feb68d5

      SHA512

      7649c0eab09b770fd2e3a068fc84fb8d40b56207b1809bc6ba0b93955177535b7c3453c24430dc32327603db3541a4c8eac568bf59b18f28eb8fe3071e70217f

    • C:\Users\Admin\AppData\Local\Temp\discord.exe
      Filesize

      159KB

      MD5

      46a2cc3ad2ade7a6b5551b53636e0abb

      SHA1

      b8eb52479e933c3530ca826fbe59567af3c4f6ec

      SHA256

      f8af311b3903b6ccd62cb62fed4903eb4351b4b886df23f815cbb61a8feb68d5

      SHA512

      7649c0eab09b770fd2e3a068fc84fb8d40b56207b1809bc6ba0b93955177535b7c3453c24430dc32327603db3541a4c8eac568bf59b18f28eb8fe3071e70217f

    • C:\Users\Admin\AppData\Local\Temp\discord.exe
      Filesize

      159KB

      MD5

      46a2cc3ad2ade7a6b5551b53636e0abb

      SHA1

      b8eb52479e933c3530ca826fbe59567af3c4f6ec

      SHA256

      f8af311b3903b6ccd62cb62fed4903eb4351b4b886df23f815cbb61a8feb68d5

      SHA512

      7649c0eab09b770fd2e3a068fc84fb8d40b56207b1809bc6ba0b93955177535b7c3453c24430dc32327603db3541a4c8eac568bf59b18f28eb8fe3071e70217f

    • memory/964-161-0x0000000005230000-0x000000000533A000-memory.dmp
      Filesize

      1.0MB

    • memory/964-166-0x00000000054F0000-0x0000000005500000-memory.dmp
      Filesize

      64KB

    • memory/964-156-0x00000000008A0000-0x00000000008CE000-memory.dmp
      Filesize

      184KB

    • memory/964-173-0x0000000006430000-0x000000000644E000-memory.dmp
      Filesize

      120KB

    • memory/964-159-0x00000000056C0000-0x0000000005CD8000-memory.dmp
      Filesize

      6.1MB

    • memory/964-160-0x0000000005100000-0x0000000005112000-memory.dmp
      Filesize

      72KB

    • memory/964-172-0x0000000007380000-0x00000000078AC000-memory.dmp
      Filesize

      5.2MB

    • memory/964-171-0x0000000006C80000-0x0000000006E42000-memory.dmp
      Filesize

      1.8MB

    • memory/964-170-0x0000000006330000-0x00000000063A6000-memory.dmp
      Filesize

      472KB

    • memory/964-169-0x0000000006260000-0x00000000062B0000-memory.dmp
      Filesize

      320KB

    • memory/964-165-0x0000000005160000-0x000000000519C000-memory.dmp
      Filesize

      240KB

    • memory/3784-164-0x00000000051D0000-0x0000000005236000-memory.dmp
      Filesize

      408KB

    • memory/3784-167-0x0000000005400000-0x0000000005410000-memory.dmp
      Filesize

      64KB

    • memory/3784-168-0x0000000006170000-0x000000000617A000-memory.dmp
      Filesize

      40KB

    • memory/3784-157-0x00000000006C0000-0x00000000008AA000-memory.dmp
      Filesize

      1.9MB

    • memory/3784-163-0x0000000005270000-0x000000000530C000-memory.dmp
      Filesize

      624KB

    • memory/3784-162-0x0000000005130000-0x00000000051C2000-memory.dmp
      Filesize

      584KB

    • memory/3784-158-0x0000000005820000-0x0000000005DC4000-memory.dmp
      Filesize

      5.6MB

    • memory/4700-153-0x0000000000400000-0x000000000062F000-memory.dmp
      Filesize

      2.2MB