General

  • Target

    file.exe

  • Size

    9.9MB

  • Sample

    231030-1hlldshc58

  • MD5

    c7e1a35456fa34722556dd88dea6e5c7

  • SHA1

    8b2a0d2b39945a80ce06e44a78973e0f9b93194c

  • SHA256

    4aa80d6935201d51bc5be593908289cc2e239be14991a5dc6054bb19e7f90c44

  • SHA512

    85273dfec4d40a9f8259c764f1d4c431d60c060e7792b2f8b0498205ebdb225d8a0314fb32f9663d5b30b00385b4e982a2d7ef3f429c317729dc4877b9598e5c

  • SSDEEP

    196608:dqG6fth+H4TaduMIDwAsrzwBiaBYJwQwvk5KTOYTa+tH/+MpZG:gFhgIDwA9BiaBYJwQk8Z+YMpZ

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

      file.exe

    • Size

      9.9MB

    • MD5

      c7e1a35456fa34722556dd88dea6e5c7

    • SHA1

      8b2a0d2b39945a80ce06e44a78973e0f9b93194c

    • SHA256

      4aa80d6935201d51bc5be593908289cc2e239be14991a5dc6054bb19e7f90c44

    • SHA512

      85273dfec4d40a9f8259c764f1d4c431d60c060e7792b2f8b0498205ebdb225d8a0314fb32f9663d5b30b00385b4e982a2d7ef3f429c317729dc4877b9598e5c

    • SSDEEP

      196608:dqG6fth+H4TaduMIDwAsrzwBiaBYJwQwvk5KTOYTa+tH/+MpZG:gFhgIDwA9BiaBYJwQk8Z+YMpZ

    • 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

    • Downloads MZ/PE file

    • 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

    • 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