General

  • Target

    a12c63a33382720b5ce010cc050106c3909316477b956ca8c17f4a1f6ca6aa42

  • Size

    239KB

  • Sample

    230922-fe7n8sfa89

  • MD5

    3240f8928a130bb155571570c563200a

  • SHA1

    aa621ddde551f7e0dbeed157ab1eac3f1906f493

  • SHA256

    a12c63a33382720b5ce010cc050106c3909316477b956ca8c17f4a1f6ca6aa42

  • SHA512

    e7c357e54b7768f1a66e0dabe2c604afe3765eb858f8b4e5751659a4b373b10fb6cc1dc72641aabf83e34d097f28fa70a78482310ecd93e9aa0347378bde409b

  • SSDEEP

    6144:dMcz8EQnRrxT5t9kFIndDK4lY4xohYA1au77C0G:dM7XnPz9uIgGLxoSA06

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

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

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

rc4.i32
rc4.i32

Extracted

Family

fabookie

C2

http://app.nnnaajjjgc.com/check/safe

Targets

    • Target

      a12c63a33382720b5ce010cc050106c3909316477b956ca8c17f4a1f6ca6aa42

    • Size

      239KB

    • MD5

      3240f8928a130bb155571570c563200a

    • SHA1

      aa621ddde551f7e0dbeed157ab1eac3f1906f493

    • SHA256

      a12c63a33382720b5ce010cc050106c3909316477b956ca8c17f4a1f6ca6aa42

    • SHA512

      e7c357e54b7768f1a66e0dabe2c604afe3765eb858f8b4e5751659a4b373b10fb6cc1dc72641aabf83e34d097f28fa70a78482310ecd93e9aa0347378bde409b

    • SSDEEP

      6144:dMcz8EQnRrxT5t9kFIndDK4lY4xohYA1au77C0G:dM7XnPz9uIgGLxoSA06

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detect Fabookie payload

    • Fabookie

      Fabookie is facebook account info stealer.

    • Glupteba

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

    • Glupteba payload

    • PrivateLoader

      PrivateLoader.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • xmrig

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

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

    • 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)

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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.

    • 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.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks