General

  • Target

    file.exe

  • Size

    2.8MB

  • Sample

    241217-vknwmstjbz

  • MD5

    d9f807e1722578cedc93b978f21093cb

  • SHA1

    7c78ede2ffe2681575f73359d6b2dbc409106e74

  • SHA256

    65bbaec08da3f5f231efb44ddb1da44d6d4adfd9fc0fffe385f3b9d700681a63

  • SHA512

    9a4cefebf1ce31919abdbfe4d904cec897fc2c31481246d04c1a32369a87c8dec8d306a13932c95e651059f22556323a4e8b97e2ff05896d3a4f58b96cc11b94

  • SSDEEP

    49152:iB49+IycD31w2DM1B4+6Uxa7ZAcomjZuC2nBNgyHtgrRrCAx:iB4gIycjbDM1B5ZOAcdNx2B+yHtgdl

Malware Config

Extracted

Family

amadey

Version

4.42

Botnet

9c9aa5

C2

http://185.215.113.43

Attributes
  • install_dir

    abc3bc1985

  • install_file

    skotes.exe

  • strings_key

    8a35cf2ea38c2817dba29a4b5b25dcf0

  • url_paths

    /Zu7JuNko/index.php

rc4.plain

Extracted

Family

cryptbot

Extracted

Family

lumma

Targets

    • Target

      file.exe

    • Size

      2.8MB

    • MD5

      d9f807e1722578cedc93b978f21093cb

    • SHA1

      7c78ede2ffe2681575f73359d6b2dbc409106e74

    • SHA256

      65bbaec08da3f5f231efb44ddb1da44d6d4adfd9fc0fffe385f3b9d700681a63

    • SHA512

      9a4cefebf1ce31919abdbfe4d904cec897fc2c31481246d04c1a32369a87c8dec8d306a13932c95e651059f22556323a4e8b97e2ff05896d3a4f58b96cc11b94

    • SSDEEP

      49152:iB49+IycD31w2DM1B4+6Uxa7ZAcomjZuC2nBNgyHtgrRrCAx:iB4gIycjbDM1B5ZOAcdNx2B+yHtgdl

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Amadey family

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Lumma Stealer, LummaC

      Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    • Lumma family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xmrig family

    • xmrig

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

    • Enumerates VirtualBox registry keys

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

    • XMRig Miner payload

    • Downloads MZ/PE file

    • 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.

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks