Resubmissions

02-11-2021 06:54

211102-hpn1zsbhc2 10

02-11-2021 06:42

211102-hgpmjsgggp 10

01-11-2021 21:47

211101-1ncknsfgfm 10

General

  • Target

    setup_x86_x64_install.exe

  • Size

    4.2MB

  • Sample

    211102-hgpmjsgggp

  • MD5

    b5b5fe52ed9ca7d47bfb857498fd684c

  • SHA1

    9c17089a630141c9b4e13ef46ab334d46709fdb8

  • SHA256

    6cbb4380d880c6bab221c81122b32e225ebf224942191fb08df5df82f971864b

  • SHA512

    482de7cacf73eb37050e323312b05d3d5d2152048efa5defa4b3d8687f6b3355233d8bf3f04d6107a7214f4b21e4f81f83313ecaf3bdcda98c7d95d60a41e79a

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://brandyjaggers.com/upload/

http://andbal.com/upload/

http://alotofquotes.com/upload/

http://szpnc.cn/upload/

http://uggeboots.com/upload/

http://100klv.com/upload/

http://rapmusic.at/upload/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

newjust

C2

135.181.129.119:4805

Extracted

Family

redline

Botnet

media0121

C2

91.121.67.60:23325

Extracted

Family

vidar

Version

41.6

Botnet

933

C2

https://mas.to/@lilocc

Attributes
  • profile_id

    933

Targets

    • Target

      setup_x86_x64_install.exe

    • Size

      4.2MB

    • MD5

      b5b5fe52ed9ca7d47bfb857498fd684c

    • SHA1

      9c17089a630141c9b4e13ef46ab334d46709fdb8

    • SHA256

      6cbb4380d880c6bab221c81122b32e225ebf224942191fb08df5df82f971864b

    • SHA512

      482de7cacf73eb37050e323312b05d3d5d2152048efa5defa4b3d8687f6b3355233d8bf3f04d6107a7214f4b21e4f81f83313ecaf3bdcda98c7d95d60a41e79a

    • Modifies Windows Defender Real-time Protection settings

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Socelars

      Socelars is an infostealer targeting browser cookies and credit card credentials.

    • Socelars Payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE ClipBanker Variant Activity (POST)

      suricata: ET MALWARE ClipBanker Variant Activity (POST)

    • suricata: ET MALWARE FormBook CnC Checkin (GET)

      suricata: ET MALWARE FormBook CnC Checkin (GET)

    • suricata: ET MALWARE GCleaner Downloader Activity M5

      suricata: ET MALWARE GCleaner Downloader Activity M5

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin

      suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin

    • suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin M2

      suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin M2

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

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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.

    • 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.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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

    • 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.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks