9f6afa09d7d82aa7527a2dc83c0819b37192a8513879979d01c79f5741b0092d

General
Target

9f6afa09d7d82aa7527a2dc83c0819b37192a8513879979d01c79f5741b0092d

Size

782KB

Sample

211021-taaqlaaec2

Score
10 /10
MD5

f8965a89dea0bc5a9eb9473e15203c4b

SHA1

4c64c26c74c0fac039a0974a95ab5e48f8e8d4e3

SHA256

9f6afa09d7d82aa7527a2dc83c0819b37192a8513879979d01c79f5741b0092d

SHA512

79dd477be26046d4eba9039fa148fdaeba85100bd3d78e0af8db95571672964603c187864b2f11fcf366abc61263bd87117bfed2b943d4d2c632330b6023e1c3

Malware Config

Extracted

Family djvu
C2

http://rlrz.org/fhsgtsspen6

Targets
Target

9f6afa09d7d82aa7527a2dc83c0819b37192a8513879979d01c79f5741b0092d

MD5

f8965a89dea0bc5a9eb9473e15203c4b

Filesize

782KB

Score
10 /10
SHA1

4c64c26c74c0fac039a0974a95ab5e48f8e8d4e3

SHA256

9f6afa09d7d82aa7527a2dc83c0819b37192a8513879979d01c79f5741b0092d

SHA512

79dd477be26046d4eba9039fa148fdaeba85100bd3d78e0af8db95571672964603c187864b2f11fcf366abc61263bd87117bfed2b943d4d2c632330b6023e1c3

Tags

Signatures

  • Detected Djvu ransomware

  • Djvu Ransomware

    Description

    Ransomware which is a variant of the STOP family.

    Tags

  • Downloads MZ/PE file

  • Executes dropped EXE

  • Modifies file permissions

    Tags

    TTPs

    File Permissions Modification
  • Adds Run key to start application

    Tags

    TTPs

    Registry Run Keys / Startup Folder Modify Registry
  • Looks up external IP address via web service

    Description

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext

Related Tasks

MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Privilege Escalation
                    Tasks

                    static1