General

  • Target

    efa2c530aa4d4f5223ba640f49f9dd46ba43645197cc5cd7e35b920186d7e1e7

  • Size

    12.2MB

  • Sample

    231123-ejryxagf4z

  • MD5

    90c82b1a54b86b6551dc761298a92728

  • SHA1

    e6c59e928564d75e8ea908f1154b9d496fb2feb2

  • SHA256

    efa2c530aa4d4f5223ba640f49f9dd46ba43645197cc5cd7e35b920186d7e1e7

  • SHA512

    532b0b90b10e552355270fa7d139995887a5df49cd23e2dabacece905b709e04787b5ce60842e4756fea99bb15ba38b5e52e93aa7366ca3b78fd90489b7a54de

  • SSDEEP

    196608:McRpQbXkmgDX5c0qzDZFcwUe0IsslWjRppNaA/vc2dMMM+fBRhu:Mqab0mgDpc0eZ+Le0bjzpNlvJO+N

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Targets

    • Target

      efa2c530aa4d4f5223ba640f49f9dd46ba43645197cc5cd7e35b920186d7e1e7

    • Size

      12.2MB

    • MD5

      90c82b1a54b86b6551dc761298a92728

    • SHA1

      e6c59e928564d75e8ea908f1154b9d496fb2feb2

    • SHA256

      efa2c530aa4d4f5223ba640f49f9dd46ba43645197cc5cd7e35b920186d7e1e7

    • SHA512

      532b0b90b10e552355270fa7d139995887a5df49cd23e2dabacece905b709e04787b5ce60842e4756fea99bb15ba38b5e52e93aa7366ca3b78fd90489b7a54de

    • SSDEEP

      196608:McRpQbXkmgDX5c0qzDZFcwUe0IsslWjRppNaA/vc2dMMM+fBRhu:Mqab0mgDpc0eZ+Le0bjzpNlvJO+N

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Windows security bypass

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Modifies boot configuration data using bcdedit

    • XMRig Miner payload

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • Stops running service(s)

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

    • Windows security modification

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks