Overview

overview

10

Static

static

3

d6b7b27e13...a9.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    d6b7b27e13700aaa7f108bf9e76473717a7a1665198e9aafcc2d2227ca11bba9.zip

  • Size

    65KB

  • Sample

    240417-x8l33adb8v

  • MD5

    ff452a7f416740a3ac2bf2abca64ba41

  • SHA1

    2f05a13d55278b303ed2406c38fa263e8671652f

  • SHA256

    6b9a013adad9842c270d718b90a178dce6fd16f4697f0b711e0e7f2790f1c289

  • SHA512

    e53ac79f4b2c67f10606af187f031a9e7c0351eb91251f3da835fa92f34c7f66102cde411b81b1afacc88729eba34aa7ced56b75485322042a1084a755db31e9

  • SSDEEP

    1536:j65MK23mw6HmF8aZUIsSiM1M9sQr+wP7TexdimBxDO:yMXY6l+LSiM1MGy+xzK

Score
10/10
ryukdiscoveryransomware

Malware Config

Targets

    • Target

      d6b7b27e13700aaa7f108bf9e76473717a7a1665198e9aafcc2d2227ca11bba9.exe

    • Size

      131KB

    • MD5

      2cc630e080bb8de5faf9f5ae87f43f8b

    • SHA1

      5a385b8b4b88b6eb93b771b7fbbe190789ef396a

    • SHA256

      d6b7b27e13700aaa7f108bf9e76473717a7a1665198e9aafcc2d2227ca11bba9

    • SHA512

      901939718692e20a969887e64db581d6fed62c99026709c672edb75ebfa35ce02fa68308d70d463afbcc42a46e52ea9f7bc5ed93e5dbf3772d221064d88e11d7

    • SSDEEP

      3072:j06qm9E8obCg2QdgYdrp23suV+eGg21Yg:j06qHnOg3df9eAJ

    Score
    10/10
    ryukdiscoveryransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Renames multiple (2676) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Modifies file permissions

      discovery

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

File and Directory Permissions Modification

1
T1222

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks