Resubmissions

03/11/2023, 04:31

231103-e5v8fsea67 10

03/11/2023, 04:09

231103-eqstsabh4z 10

General

  • Target

    c4a2e403dc091a191ae09578bf914baf70fd9b2d9593f8061dc953cbd431e5b5

  • Size

    12.5MB

  • Sample

    231103-eqstsabh4z

  • MD5

    18055926fc6bebb1f519fe3188473565

  • SHA1

    4b35d30c0b45f050610c8032f7f2ead68cf32aee

  • SHA256

    c4a2e403dc091a191ae09578bf914baf70fd9b2d9593f8061dc953cbd431e5b5

  • SHA512

    3e36e518300727420883c6a5c425fb381a760a3d559c2440d081a48f178a2c13255b3061898fb4b46611bac946ec57b22895c205fff7ce03076cfb6d63783545

  • SSDEEP

    196608:VXJJnYZkz7SKwTEu/qEIshS35kTuB4c6IT2laHaDs4GHEx2z1P+3vXSTlWCFJx:VX00GKwTVqg43OFyaHgS2xQ/STX

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

      c4a2e403dc091a191ae09578bf914baf70fd9b2d9593f8061dc953cbd431e5b5

    • Size

      12.5MB

    • MD5

      18055926fc6bebb1f519fe3188473565

    • SHA1

      4b35d30c0b45f050610c8032f7f2ead68cf32aee

    • SHA256

      c4a2e403dc091a191ae09578bf914baf70fd9b2d9593f8061dc953cbd431e5b5

    • SHA512

      3e36e518300727420883c6a5c425fb381a760a3d559c2440d081a48f178a2c13255b3061898fb4b46611bac946ec57b22895c205fff7ce03076cfb6d63783545

    • SSDEEP

      196608:VXJJnYZkz7SKwTEu/qEIshS35kTuB4c6IT2laHaDs4GHEx2z1P+3vXSTlWCFJx:VX00GKwTVqg43OFyaHgS2xQ/STX

    • 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)

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • 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