Malicious PDF — malware analysis report

Static analysis result for SHA-256 da4fe3d92d64bd9e…

MALICIOUS

PDF

13.9 KB Created: 2019-05-02 02:11:10 +01:00 Authoring application: mPDF 5.7
MD5: 9d21448709e2929c9180f22659a687d1 SHA-1: ef3216b29d8857e3cb97f70429805987a998138f SHA-256: da4fe3d92d64bd9ec7385655df0798099b8ce36dece794dc07924302b3c5594f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF contains a large number of embedded URLs pointing to external sites, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, preventing a more detailed analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9102

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://xiixmcuin.linkpc.net/2200201204206208/The-Widow-s-Kiss-Kiss-1-by-Jane-Feather.pdf
    • http://xiixmcuin.linkpc.net/2203206201/Harley-Quinn-Vol-3-Kiss-Kiss-Bang-Stab-by-Amanda-Conner.pdf
    • http://xiixmcuin.linkpc.net/2200206203201201/Kiss-Across-Kingdoms-Kiss-Across-Time-5-by-Tracy-Cooper-Posey.pdf
    • http://xiixmcuin.linkpc.net/2200206203201206/Kiss-Across-Swords-Kiss-Across-Time-2-by-Tracy-Cooper-Posey.pdf
    • http://xiixmcuin.linkpc.net/4202207207204203/Kiss-of-Life-Kiss-Trilogy-2-5-by-Debbie-Vigui-.pdf
    • http://xiixmcuin.linkpc.net/1200205207209203/Always-Kiss-Me-Goodnight-Guardian-Kiss-1-by-Megan-Gaudino.pdf
    • http://xiixmcuin.linkpc.net/5209204206202/Kiss-of-Night-Kiss-Trilogy-1-by-Debbie-Vigui-.pdf
    • http://xiixmcuin.linkpc.net/3205208207204205/Never-Kiss-and-Tell-Guardian-Kiss-2-by-Megan-Gaudino.pdf
    • http://xiixmcuin.linkpc.net/2202201209202201/Angel-Kiss-by-Laura-Jane-Cassidy.pdf
    • http://xiixmcuin.linkpc.net/4205201208203204/Careful-What-You-Kiss-For-by-Jane-Lynne-Daniels.pdf
    • http://xiixmcuin.linkpc.net/2200202205205207/Intimate-Kiss-Bend-To-My-Will-3-by-Emily-Jane-Trent.pdf
    • http://xiixmcuin.linkpc.net/2202207202203200/A-Kiss-for-a-Highlander-Georgian-Rebel-1-by-Jane-Godman.pdf
    • http://xiixmcuin.linkpc.net/4207200209205200/Passion-s-Kiss-Wellesley-Brothers-7-by-Jane-Kidder.pdf
    • http://xiixmcuin.linkpc.net/2201200200208201/A-Kiss-Is-Just-a-Kiss-by-Nicholas-Scott.pdf
    • http://xiixmcuin.linkpc.net/8206202208206/If-We-Kiss-If-We-Kiss-1-by-Rachel-Vail.pdf
    • http://xiixmcuin.linkpc.net/2204205200206209/Goodnight-Kiss-Goodnight-Kiss-1-Fear-Street-Super-Chiller-3-by-R-L-Stine.pdf
    • http://xiixmcuin.linkpc.net/2208206204207/Kiss-A-Cowboy-Kiss-A-Cowboy-Series-Book-One-by-Deanna-Lynn-Sletten.pdf
    • http://xiixmcuin.linkpc.net/4204201202204201/Kiss-My-Tiara-How-to-Rule-the-World-as-a-SmartMouth-Goddess-by-Susan-Jane-Gilman.pdf
    • http://xiixmcuin.linkpc.net/3205206209208208/Kiss-the-Girls-and-Make-Them-Spy-An-Original-Jane-Bond-Parody-by-Mabel-Maney.pdf
    • http://xiixmcuin.linkpc.net/4207202204208201/Practicing-My-First-Real-Kiss-My-First-Real-Kiss-1-by-Ciara-Jamie-Garcia.pdf
    • http://xiixmcuin.linkpc.net/2202207202203200/A-Kiss-for-a-Highlander-Georgian-Rebel-1-by-Jane-Godma