General

  • Target

    7f0337bf09f4f0c473ccf391c152171b9253f5e773de87633d569dbc8e4a5b3c

  • Size

    213KB

  • Sample

    210921-d2jjtaafam

  • MD5

    0bf4ba6ba80d5c073ed0cee8d2f54c0a

  • SHA1

    4cb4c8a7dccb56bcdd6cf461bce3e08f8a676ef0

  • SHA256

    7f0337bf09f4f0c473ccf391c152171b9253f5e773de87633d569dbc8e4a5b3c

  • SHA512

    9a93fd3e455c64dc614dadeca51c39308f2e7a5d304845fca1832b6761a36a44f310479bca88a2065ed581db7c4e8a36b2c4cf099c7583d63926b8e94d067b0b

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

      7f0337bf09f4f0c473ccf391c152171b9253f5e773de87633d569dbc8e4a5b3c

    • Size

      213KB

    • MD5

      0bf4ba6ba80d5c073ed0cee8d2f54c0a

    • SHA1

      4cb4c8a7dccb56bcdd6cf461bce3e08f8a676ef0

    • SHA256

      7f0337bf09f4f0c473ccf391c152171b9253f5e773de87633d569dbc8e4a5b3c

    • SHA512

      9a93fd3e455c64dc614dadeca51c39308f2e7a5d304845fca1832b6761a36a44f310479bca88a2065ed581db7c4e8a36b2c4cf099c7583d63926b8e94d067b0b

    • 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

    • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    • 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

    • 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