General

  • Target

    9528313d13ec6629a64434c36e11872cc12f35232908b2a2e6a89636a199d6cd

  • Size

    174KB

  • Sample

    210826-epqpjsdkt2

  • MD5

    badcc5eeb093cfa468ac2433ca3ec639

  • SHA1

    1e9b7c068262b69803f40088d7c296ec1cad777c

  • SHA256

    9528313d13ec6629a64434c36e11872cc12f35232908b2a2e6a89636a199d6cd

  • SHA512

    9710efb850d7109bbb51a769ecf610e1c79732d331c140392b68448f3fca49249b1458cbf7e4e931056bc4987a605616052197f1003c68d0490f66ab6e25c611

Malware Config

Extracted

Path

C:\How To Restore Your Files.txt

Ransom Note
Hi, friend. Your files are encrypted. And you can't do anything with them. If you want to restore them, contact us via telegram @username312321 Price - 350 $ You can pay with BTC - bc1qd53hpk76zutapw8tsgnnkeuuuhuk4ecr2wrd93
Wallets

bc1qd53hpk76zutapw8tsgnnkeuuuhuk4ecr2wrd93

Extracted

Family

smokeloader

Version

2020

C2

http://aucmoney.com/upload/

http://thegymmum.com/upload/

http://atvcampingtrips.com/upload/

http://kuapakualaman.com/upload/

http://renatazarazua.com/upload/

http://nasufmutlu.com/upload/

rc4.i32
rc4.i32

Targets

    • Target

      9528313d13ec6629a64434c36e11872cc12f35232908b2a2e6a89636a199d6cd

    • Size

      174KB

    • MD5

      badcc5eeb093cfa468ac2433ca3ec639

    • SHA1

      1e9b7c068262b69803f40088d7c296ec1cad777c

    • SHA256

      9528313d13ec6629a64434c36e11872cc12f35232908b2a2e6a89636a199d6cd

    • SHA512

      9710efb850d7109bbb51a769ecf610e1c79732d331c140392b68448f3fca49249b1458cbf7e4e931056bc4987a605616052197f1003c68d0490f66ab6e25c611

    • Babuk Locker

      RaaS first seen in 2021 initially called Vasa Locker.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Checks BIOS information in registry

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

    • Deletes itself

    • 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

    • 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

    • Enumerates connected drives

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

File Deletion

2
T1107

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

2
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks