General

  • Target

    eufive_20210710-170448

  • Size

    3.6MB

  • Sample

    210710-z8x2dmgrbj

  • MD5

    85eb61ab9b4baad5a052fc8ad58d9596

  • SHA1

    6b46f4e4191cf3eb8d159c1113cb4fa11928d9d9

  • SHA256

    b06ce32e718dfcb37690801799d06bc04b85ece8151468cde9f93b1f10960108

  • SHA512

    a61bc0ebbc0d06130c21c03bd56f277fd7998c1135b93323110bad1d16d158ed33b07b36dc1e5d6f20827cb6cb56d1aed42ef6d4557d08d1eb3556c1e80a2465

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1

Targets

    • Target

      eufive_20210710-170448

    • Size

      3.6MB

    • MD5

      85eb61ab9b4baad5a052fc8ad58d9596

    • SHA1

      6b46f4e4191cf3eb8d159c1113cb4fa11928d9d9

    • SHA256

      b06ce32e718dfcb37690801799d06bc04b85ece8151468cde9f93b1f10960108

    • SHA512

      a61bc0ebbc0d06130c21c03bd56f277fd7998c1135b93323110bad1d16d158ed33b07b36dc1e5d6f20827cb6cb56d1aed42ef6d4557d08d1eb3556c1e80a2465

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • ServHelper

      ServHelper is a backdoor written in Delphi and is associated with the hacking group TA505.

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies RDP port number used by Windows

    • Possible privilege escalation attempt

    • Sets DLL path for service in the registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Deletes itself

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Checks installed software on the system

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks