General

  • Target

    e2182bd67553bff631bb93f7a016163c7cb82485cf9614bf566c9b49e821b158

  • Size

    215KB

  • Sample

    210921-bncg8sffg7

  • MD5

    050902ef3cb5d1ad0f03b11c767b6555

  • SHA1

    ad2e5d9f525909ead63b561202391e6abdd59483

  • SHA256

    e2182bd67553bff631bb93f7a016163c7cb82485cf9614bf566c9b49e821b158

  • SHA512

    b6fc0030d946cf4076c96d8c6625fa3b7e7cbffbbfbc9b213c0124426c5e4e6c11a003afb08cc57878a80bddef51304ac56ae397826e19b604904ae2b9f85efc

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://venerynnet1.top/

http://kevonahira2.top/

http://vegangelist3.top/

http://kingriffaele4.top/

http://arakeishant5.top/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

installEXE

C2

146.70.35.170:30905

Extracted

Family

redline

Botnet

khrip1k

C2

91.142.77.155:5469

Targets

    • Target

      e2182bd67553bff631bb93f7a016163c7cb82485cf9614bf566c9b49e821b158

    • Size

      215KB

    • MD5

      050902ef3cb5d1ad0f03b11c767b6555

    • SHA1

      ad2e5d9f525909ead63b561202391e6abdd59483

    • SHA256

      e2182bd67553bff631bb93f7a016163c7cb82485cf9614bf566c9b49e821b158

    • SHA512

      b6fc0030d946cf4076c96d8c6625fa3b7e7cbffbbfbc9b213c0124426c5e4e6c11a003afb08cc57878a80bddef51304ac56ae397826e19b604904ae2b9f85efc

    • MedusaLocker

      Ransomware with several variants first seen in September 2019.

    • MedusaLocker Payload

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • 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.

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Windows security bypass

    • xmrig

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

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

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

    • Modifies boot configuration data using bcdedit

    • XMRig Miner Payload

    • Creates new service(s)

    • Deletes System State backups

      Uses wbadmin.exe to inhibit system recovery.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Sets service image path in registry

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • 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.

    • 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

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks