Malicious PDF — malware analysis report

Static analysis result for SHA-256 04aa0d9dbbc93ae3…

MALICIOUS

PDF

18.9 KB Created: 2019-05-02 00:26:23 +01:00 Authoring application: mPDF 5.7
MD5: 4f1874492cfdc2ca12b53f41161f4636 SHA-1: 45ceb04e68262f2300227bc6e565fc5af03a5016 SHA-256: 04aa0d9dbbc93ae3eaa86b8670ce5cc026b1523724e6284810e6abc50dae2b49
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier as malicious. It contains a large number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic, pointing to various PDF files hosted on 'xiixmcuin.linkpc.net'. While the document body is heavily obfuscated and unreadable, the presence of numerous external links suggests an attempt to manipulate search engine results or redirect users to potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/8204204200200200/Can-I-Play-by-J-Dillard.pdf
    • http://xiixmcuin.linkpc.net/3200206201209205/Three-by-Annie-Dillard-Pilgrim-at-Tinker-Creek-An-American-Childhood-The-Writing-Life-by-Annie-Dillard.pdf
    • http://xiixmcuin.linkpc.net/8204203209209200/Annie-Dillard-Interview-with-Kay-Bonetti-by-Annie-Dillard.pdf
    • http://xiixmcuin.linkpc.net/8204203208208206/The-Annie-Dillard-Library-by-Annie-Dillard.pdf
    • http://xiixmcuin.linkpc.net/8208205202203200/Play-A-Recollection-In-Pictures-And-Words-Of-The-First-Five-Years-Of-Play-At-Shakespeare-s-Globe-Theatre-by-Mark-Rylance.pdf
    • http://xiixmcuin.linkpc.net/4208209209202208/How-To-Play-Checkers-With-Complete-Rules-and-Methods-of-Play-Advice-to-Beginners-and-Analysis-of-Games-Played-Throughout-by-W-Patterson.pdf
    • http://xiixmcuin.linkpc.net/4205207209203207/Play-Learning-How-Play-Motivates-and-Enhances-Children-s-Cognitive-and-Social-Emotional-Growth-by-Dorothy-G-Singer.pdf
    • http://xiixmcuin.linkpc.net/4200208206202209/Changing-the-Game-Play-by-Play-2-by-Jaci-Burton.pdf
    • http://xiixmcuin.linkpc.net/4208203203202200/Taking-a-Shot-Play-by-Play-3-by-Jaci-Burton.pdf
    • http://xiixmcuin.linkpc.net/4205200204202206/The-Final-Score-Play-by-Play-13-by-Jaci-Burton.pdf
    • http://xiixmcuin.linkpc.net/4200206206208207/Changing-The-Game-Play-by-Play-2-by-Jaci-Burton.pdf
    • http://xiixmcuin.linkpc.net/2208202205207204/Hot-Holiday-Nights-Play-by-Play-10-5-by-Jaci-Burton.pdf
    • http://xiixmcuin.linkpc.net/4205201201207/Changing-the-Game-Play-by-Play-2-by-Jaci-Burton.pdf
    • http://xiixmcuin.linkpc.net/3205209201202201/Back-in-Play-Power-Play-2-by-Lynda-Aicher.pdf
    • http://xiixmcuin.linkpc.net/2205201204202202/Taking-a-Shot-Play-by-Play-3-by-Jaci-Burton.pdf
    • http://xiixmcuin.linkpc.net/7206205200207208/Role-Play-Play-1-by-Morticia-Knight.pdf
    • http://xiixmcuin.linkpc.net/4202208204201204/All-Wound-Up-Play-by-Play-10-by-Jaci-Burton.pdf
    • http://xiixmcuin.linkpc.net/6209203204208202/The-Backyard-Play-Revolution-How-to-Engage-Kids-in-Simple-Inexpensive-Outdoor-Play-and-Increase-Child-Health-and-Motor-Sensory-Development-by-Jason-Runkel-Sperling.pdf
    • http://xiixmcuin.linkpc.net/8204203206204209/First-Contact-by-J-M-Dillard.pdf
    • http://xiixmcuin.linkpc.net/1201207207201209/The-Wager-by-Dan-Dillard.pdf

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