General

  • Target

    D0CD0B55D658B5C1109F87AF54CF7A0F.exe

  • Size

    3.9MB

  • Sample

    210609-1qz1q93tks

  • MD5

    d0cd0b55d658b5c1109f87af54cf7a0f

  • SHA1

    6c7e977a1096c9fa4fb3e5e45a5009b42a23fd4d

  • SHA256

    2507f070a5e9c57e22b5c3ce3b54fade48f9aba2d444fa7d0c48146a94309e06

  • SHA512

    de8c8a3abb4d1484da6dbea9d628a6b99f889bab8852ba14f71cb1c952433ec197cdd6c88faa580dc688227749f3faaebed171523bf369e9b68001f82b34abe1

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://ppcspb.com/upload/

http://mebbing.com/upload/

http://twcamel.com/upload/

http://howdycash.com/upload/

http://lahuertasonora.com/upload/

http://kpotiques.com/upload/

rc4.i32
rc4.i32

Targets

    • Target

      D0CD0B55D658B5C1109F87AF54CF7A0F.exe

    • Size

      3.9MB

    • MD5

      d0cd0b55d658b5c1109f87af54cf7a0f

    • SHA1

      6c7e977a1096c9fa4fb3e5e45a5009b42a23fd4d

    • SHA256

      2507f070a5e9c57e22b5c3ce3b54fade48f9aba2d444fa7d0c48146a94309e06

    • SHA512

      de8c8a3abb4d1484da6dbea9d628a6b99f889bab8852ba14f71cb1c952433ec197cdd6c88faa580dc688227749f3faaebed171523bf369e9b68001f82b34abe1

    • ElysiumStealer

      ElysiumStealer (previously known as ZeromaxStealer) is an info stealer that can steal login credentials for various accounts.

    • PlugX

      PlugX is a RAT (Remote Access Trojan) that has been around since 2008.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

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

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • UPX packed file

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

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Checks whether UAC is enabled

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks