General

  • Target

    Magniber Windows update ransom sample.zip

  • Size

    71KB

  • Sample

    230906-cxsq9acg6t

  • MD5

    ad0e710e6f975104d81f7871e0b9b82b

  • SHA1

    20610fb3dc3d7219c270215593795f1dd25ce74c

  • SHA256

    378aaaf87dd28992eb2dff01fde5698ac9d10ab28cb8cf6fb28956639261f77b

  • SHA512

    e988059b55848667810930b50153230dacfe79a17da28cf5224c2531e6f9f669acfbccbd858091028473f9d0e8ad446d71faa8d3b80e44b9f5b124dcc594f9ae

  • SSDEEP

    1536:atjQVxyWGNUJ01V6GeG32QKgZESkIg1jhdCFNdko5onUWY:ax2xJGNPb6zGIp0Nuo5o+

Score
10/10

Malware Config

Targets

    • Target

      Win10.0_System_Upgrade_Software (1).msi

    • Size

      96KB

    • MD5

      6c120194a2f94ef993950e55bd00108b

    • SHA1

      670b20bf3be343efec6a162c3fc5443c9ec0f367

    • SHA256

      48b9a931b49c1b20ec23f182246b937265e735937c2d798f9f2fee557018b629

    • SHA512

      b4976bd4ba4bc3092ac924cbd7423e27a73aa926282f3fa36ba14892defec5e8fec2f6460fbcbb03ee4b7831610d45dd7290dd12ab61a8ce24911f51879494ae

    • SSDEEP

      1536:9w6uKzgNtoaIbxxmNDMOVASySUXFmff0D80Dq7fx5:9kKzkYs3SSyS+UbLx5

    Score
    10/10
    • Detect magniber ransomware

    • Magniber Ransomware

      Ransomware family widely seen in Asia being distributed by the Magnitude exploit kit.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (83) files with added filename extension

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

    • Blocklisted process makes network request

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Suspicious use of SetThreadContext

    • Target

      Win10.0_System_Upgrade_Software.msi

    • Size

      92KB

    • MD5

      108c1a102c58234f4cda627079df75c3

    • SHA1

      21d6f08bd6bab100eb0b1a09c806c78577ec5b25

    • SHA256

      a0e41e8c856a4e7a71893abf513b6ebefde78dd81b37e560a29cf25a83b9df9b

    • SHA512

      0f4476005fa08acf212e1ec8bb548a9503a998e063e048de9cce438500f13ff5a98acac8ba4c3eeaf5572b583c6da9e2af23e23e3971675e260c628c2d6afb9b

    • SSDEEP

      1536:hzzvCgcyW/eh+qZR1alA9Dh0naIk2maifvWxWxWrspnfp+0D80Duu7fxFa:R1cz2h+gilA1fp3LxFa

    Score
    10/10
    • Detect magniber ransomware

    • Magniber Ransomware

      Ransomware family widely seen in Asia being distributed by the Magnitude exploit kit.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Blocklisted process makes network request

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks