General

  • Target
    otclientv8.zip
  • Size 31.1MB
  • Sample260809-yvg3madj3s
  • SHA256 a51d330b5bc67fd5d54fc8fa38c168c76b5065f3919e94397cb0129edf023387
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      LICENSE
    • Size 1KB
    • SHA256 39560542896f362c74a3a7fd5768434ef6bca98de09d352678cac2dbee4bde0a
    • MD5 SHA1 SHA512 TLSH
    Score
    3/10
    • Target
      README.md
    • Size 3KB
    • SHA256 86adb37e8249502b1320a2c9d71bb529718442af12336f40acbb0ba971a6f12f
    • MD5 SHA1 SHA512 TLSH
    Score
    3/10
    • Target
      TibiaHeroes.exe
    • Size 15.0MB
    • SHA256 baa0660804200ea5c467d2379ffa77d18a08d29e448b4ec225c6179201c4a39d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Drops file in Drivers directory

    • Manipulates Digital Signatures

      Attackers can apply techniques such as modifying certain DLL exports to make their binary seem valid.

    • Possible privilege escalation attempt

    • Boot or Logon Autostart Execution: Print Processors

      Adversaries may abuse print processors to run malicious DLLs during system boot for persistence and/or privilege escalation.

    • Checks computer location settings

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Drops desktop.ini file(s)

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    • Modifies termsrv.dll

      Commonly used to allow simultaneous RDP sessions.

    • Target
      d3dcompiler_47.dll
    • Size 3.5MB
    • SHA256 7d0d1290382ea0e44a3178446a0c202696237e27dbb5f8f0827691092b8f2228
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      libEGL.dll
    • Size 109KB
    • SHA256 c5a1a7b95b94eab58340a131e47f0f05f820761d02da63e31b73f76fc696588f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      libGLESv2.dll
    • Size 6.0MB
    • SHA256 7a75735bbcb6df9ee2ab17a79e125bee28939e76eb1d3f7586201b63a90d1c86
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

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

    • Enumerates connected drives

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

    • Target
      otclient_linux
    • Size 15.1MB
    • SHA256 e985437dca4eac80b60821e96d0dc5d8c98df87bdf22f12238ea2f395f2bd1a2
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      otclient_mac
    • Size 21.5MB
    • SHA256 4e6dec7108ebfe9461abef9418939dd12ec4d236da22c572da8fe4ce8e2d732d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      otclientv8.apk
    • Size 11.4MB
    • SHA256 6d3e45e4af46f0dbb9c546f0f7619481c5eee3c6e3837dedcd24c8acc289e854
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      otclientv8.bat
    • Size 2KB
    • SHA256 0b0e2b4d7fae6ee854c8027098533bd5044afc3c360eb9f68c41a6a91ac3a340
    • MD5 SHA1 SHA512 TLSH
    • Drops file in Drivers directory

    • Manipulates Digital Signatures

      Attackers can apply techniques such as modifying certain DLL exports to make their binary seem valid.

    • Possible privilege escalation attempt

    • Boot or Logon Autostart Execution: Print Processors

      Adversaries may abuse print processors to run malicious DLLs during system boot for persistence and/or privilege escalation.

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Drops desktop.ini file(s)

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    • Modifies termsrv.dll

      Commonly used to allow simultaneous RDP sessions.

MITRE ATT&CK Enterprise v16

Tasks

static1

Score
6/10

behavioral1

execution
Score
3/10

behavioral2

execution
Score
3/10

behavioral3

execution
Score
3/10

behavioral4

execution
Score
3/10

behavioral5

credential_accessdefense_evasiondiscoveryexecutionexploitpersistenceprivilege_escalationspywarestealer
Score
8/10

behavioral6

credential_accessdefense_evasiondiscoveryexecutionexploitpersistenceprivilege_escalationspywarestealer
Score
8/10

behavioral7

discovery
Score
3/10

behavioral8

discovery
Score
3/10

behavioral9

discovery
Score
3/10

behavioral10

discovery
Score
3/10

behavioral11

adwarediscoverypersistenceransomwarespyware
Score
8/10

behavioral12

Score
1/10

behavioral13

Score
1/10

behavioral14

Score
1/10

behavioral15

credential_accessdefense_evasiondiscoveryexecutionexploitpersistenceprivilege_escalationspywarestealer
Score
8/10

behavioral16

credential_accessdefense_evasiondiscoveryexecutionexploitpersistenceprivilege_escalationspywarestealer
Score
8/10