General

  • Target
    CustomVR-Setup-3.78.4.exe
  • Size 114.4MB
  • Sample260628-cfbreaey5z
  • SHA256 6bb2f677cf18501468f813816578b5c03197c454fe0e11aaa71acfe7dcd71cfb
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      CustomVR-Setup-3.78.4.exe
    • Size 114.4MB
    • SHA256 6bb2f677cf18501468f813816578b5c03197c454fe0e11aaa71acfe7dcd71cfb
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Enumerates VirtualBox registry keys

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Looks for VirtualBox Guest Additions in registry

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Looks for VMWare Tools registry key

    • Looks for VMWare services registry key.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads ssh keys stored on the system

      Tries to access SSH used by SSH programs.

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to get system information.

    • Enumerates processes with tasklist

    • Target
      $PLUGINSDIR/StdUtils.dll
    • Size 100KB
    • SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/System.dll
    • Size 12KB
    • SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/UAC.dll
    • Size 14KB
    • SHA256 2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      $PLUGINSDIR/WinShell.dll
    • Size 3KB
    • SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
    • MD5 SHA1 SHA512 TLSH
    Score
    4/10
    • Target
      resources/app.asar.unpacked/node_modules/koffi/lib/native/base/unicode_gen.py
    • Size 4KB
    • SHA256 402e17c0b48c4d79da1234e10e57d7174b9103c376dd43ad9a1e044a9fb39944
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      resources/app.asar.unpacked/node_modules/koffi/src/cnoke/cnoke.js
    • Size 6KB
    • SHA256 dfa8d4d5a1e7e4cdd51ac2b656b93e816718d5912dcaa28002bf3d6cb3068b46
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Target
      resources/app.asar.unpacked/node_modules/koffi/src/cnoke/src/builder.js
    • Size 17KB
    • SHA256 53a48af14d00256f3f60d6265d8bc637fe1fe50e0cbebb3ecc610bd9cc46b199
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      resources/app.asar.unpacked/node_modules/koffi/src/cnoke/src/index.js
    • Size 247B
    • SHA256 01cdd6266047bdf69d79c0ea48fdcd830471282eddc0b9c8259558baaff62cd7
    • MD5 SHA1 SHA512 TLSH
    Score
    3/10
    • Target
      resources/app.asar.unpacked/node_modules/koffi/src/cnoke/src/tools.js
    • Size 12KB
    • SHA256 7b12a3ddc0a7706b7e5cc6155537e9abf3c75c124e5ca38ab58c8dc0b8eea58a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      resources/app.asar.unpacked/node_modules/koffi/src/koffi/src/init.js
    • Size 3KB
    • SHA256 76c95aba02c0e8b2df4a0580af41c65f5a2fab8dbbc86cc02e6eb177268d0d9b
    • MD5 SHA1 SHA512 TLSH
    Score
    3/10
    • Target
      resources/app.asar.unpacked/node_modules/koffi/src/koffi/tools/write_trampolines.js
    • Size 1KB
    • SHA256 3ab8e2ca421a950555b9866396ea9d2632d3a70d5674096a20968fd0458cfd7d
    • MD5 SHA1 SHA512 TLSH
    • Target
      resources/app.asar.unpacked/node_modules/koffi/vendor/node-addon-api/napi-inl.h
    • Size 230KB
    • SHA256 797668948d7f2df0ee8fcfe734af5b55942768bc7e15e77196a1f1107bba3635
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10

MITRE ATT&CK Enterprise v16

Tasks

static1

Score
3/10

behavioral1

defense_evasiondiscoveryexecutionpersistencespywarestealer
Score
9/10

behavioral2

adwaredefense_evasiondiscoveryexecutionpersistenceransomwarespywarestealer
Score
9/10

behavioral3

discovery
Score
3/10

behavioral4

discovery
Score
3/10

behavioral5

discovery
Score
3/10

behavioral6

discovery
Score
3/10

behavioral7

discovery
Score
3/10

behavioral8

discovery
Score
3/10

behavioral9

discovery
Score
3/10

behavioral10

discovery
Score
4/10

behavioral11

execution
Score
3/10

behavioral12

execution
Score
3/10

behavioral13

execution
Score
3/10

behavioral14

execution
Score
3/10

behavioral15

discoveryexecution
Score
3/10

behavioral16

antivmdiscoveryexecution
Score
4/10

behavioral17

execution
Score
3/10

behavioral18

execution
Score
3/10

behavioral19

execution
Score
3/10

behavioral20

execution
Score
3/10

behavioral21

execution
Score
3/10

behavioral22

execution
Score
3/10

behavioral23

execution
Score
3/10

behavioral24

execution
Score
3/10

behavioral25

execution
Score
3/10

behavioral26

execution
Score
3/10

behavioral27

discoveryexecution
Score
3/10

behavioral28

antivmdiscoveryexecution
Score
4/10

behavioral29

execution
Score
3/10

behavioral30

execution
Score
3/10

behavioral31

execution
Score
3/10

behavioral32

execution
Score
3/10