General

  • Target

    8817cbb6de1446a920401a072df1453459aa95684ffc7da9c05ca759b1836c0c.zip

  • Size

    11.4MB

  • Sample

    231119-2dknzacc97

  • MD5

    cf3e205aa03f27ec2293ebc7504cc8c2

  • SHA1

    7e917bfa68282a207d44ee37192501aac6847c8c

  • SHA256

    26ef78f3cc55ecfd66cf35eba103381bd42a92d570f283f5f22d0c8ce28527d2

  • SHA512

    6496f36752b8d7701b0aa7d8ff03260fe7c0810fb99c453288df175d6304434359482ac751c242248ef78abc80a70019851fe44c676d611ed70ab258f20f9400

  • SSDEEP

    196608:OtpR33e/kKVMiySHg/ZXcW5ZO14hTrlgOpz/2rVoHq6DvCuJ1gkbhEGk1PuMXUEq:ONuMoHglD5Z2WTrlt/2xohDauHgH11Pc

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

      8817cbb6de1446a920401a072df1453459aa95684ffc7da9c05ca759b1836c0c.exe

    • Size

      12.2MB

    • MD5

      deb1df6e8090653848506c1e9a1e32f8

    • SHA1

      f2472fb321a388b7310be0260e1f1e66e04188b6

    • SHA256

      8817cbb6de1446a920401a072df1453459aa95684ffc7da9c05ca759b1836c0c

    • SHA512

      cb9fbdabba1ea1efe44f7f712f0bbbafff0da482c7209d2e1befff1238b83a5beb6d3ccfd5bfa83aab20d40308e4412f2a54dbf03132e42c990447e3fed6e5aa

    • SSDEEP

      196608:WgDX5c0qzDZFcwUe0IssfcRpQbXkLWjRppNaA/vc2dMMM+fBRhu:WgDpc0eZ+Le0Yqab0ajzpNlvJO+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)

    • Checks computer location settings

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

    • 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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks