General

  • Target

    d204db9923be650d9397b587bf8151a244819cc2ed118714810c2094142bdfe7

  • Size

    269KB

  • Sample

    210920-sjv78ahbar

  • MD5

    7c8b9be5708780bcdd16b27f4c08e6ca

  • SHA1

    3d8bb981dbca1b5d590e39fb2ac23c63e9c28587

  • SHA256

    d204db9923be650d9397b587bf8151a244819cc2ed118714810c2094142bdfe7

  • SHA512

    df29a99554ef1dd9c351f7ed93106bfdec752b466962a25da25990e0932d96a2f8ffc7bfceb2e0d6b9d3ef6eff14ecb07cb707d5bf4ec4442d85122cbb81d4fb

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

Moneymaker

C2

185.244.217.166:56316

Extracted

Family

redline

Botnet

installbv

C2

80.85.137.89:17954

Extracted

Family

redline

Botnet

2k superstar

C2

91.142.77.155:5469

Targets

    • Target

      d204db9923be650d9397b587bf8151a244819cc2ed118714810c2094142bdfe7

    • Size

      269KB

    • MD5

      7c8b9be5708780bcdd16b27f4c08e6ca

    • SHA1

      3d8bb981dbca1b5d590e39fb2ac23c63e9c28587

    • SHA256

      d204db9923be650d9397b587bf8151a244819cc2ed118714810c2094142bdfe7

    • SHA512

      df29a99554ef1dd9c351f7ed93106bfdec752b466962a25da25990e0932d96a2f8ffc7bfceb2e0d6b9d3ef6eff14ecb07cb707d5bf4ec4442d85122cbb81d4fb

    • MedusaLocker

      Ransomware with several variants first seen in September 2019.

    • MedusaLocker Payload

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

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

    • 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.

    • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Deletes System State backups

      Uses wbadmin.exe to inhibit system recovery.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • 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.

    • 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.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • 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