Malicious PDF — malware analysis report

Static analysis result for SHA-256 400c58f06bc33a74…

MALICIOUS

PDF

20.8 KB Created: 2020-03-18 22:27:56 +00:00 Authoring application: mPDF 5.7
MD5: fdee21e6c8af1a250f7b11d241ba2565 SHA-1: 87e74b155b0e31979d91f17cc9f7d26517b73c3e SHA-256: 400c58f06bc33a747bf3e2d95eb796b15d2c3835faf345333e97609f7cf68738
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, specifically a link farm, pointing to various book titles hosted on the domain easckaolp.myhome.cx. This technique is commonly used to lure users into clicking malicious links, potentially leading to phishing sites or malware downloads. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9904

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://easckaolp.myhome.cx/3840841846846844/Blood-and-Iron-The-Book-of-the-Black-Earth-1-by-Jon-Sprunk.pdf
    • http://easckaolp.myhome.cx/2848843840848843/Storm-and-Steel-The-Book-of-the-Black-Earth-2-by-Jon-Sprunk.pdf
    • http://easckaolp.myhome.cx/3844844848849842/Iron-and-Blood-Saga-of-the-Redeemed-Book-I-Part-II-by-Auston-Habershaw.pdf
    • http://easckaolp.myhome.cx/2848842849847844/Iron-Axe-The-Books-of-Blood-and-Iron-1-by-Steven-Harper.pdf
    • http://easckaolp.myhome.cx/1840848849848844847/Warwolves-of-the-Iron-Cross-Black-Wolf-White-Reich-Otherness-in-Nazi-Germany-Wehrwolf-Book-7-by-V-K-Clark.pdf
    • http://easckaolp.myhome.cx/5840844848842846/The-Iron-King-The-Iron-Fey-Book-1-by-Julie-Kagawa.pdf
    • http://easckaolp.myhome.cx/3846847848842849/Breath-of-Earth-Blood-of-Earth-1-by-Beth-Cato.pdf
    • http://easckaolp.myhome.cx/4847843845841842/Iron-Earth-Copper-Sky-by-Ya-ar-Kemal.pdf
    • http://easckaolp.myhome.cx/3842848841846849/The-Iron-in-Blood-by-Jenny-Doe.pdf
    • http://easckaolp.myhome.cx/2843845845844842/Iron-Man-Blood-Slaves-2-by-KyAnn-Waters.pdf
    • http://easckaolp.myhome.cx/3846846846847848/Blood-amp-Iron-American-Empire-1-by-Harry-Turtledove.pdf
    • http://easckaolp.myhome.cx/4841847847845843/The-Iron-Trial-Magisterium-1-by-Holly-Black.pdf
    • http://easckaolp.myhome.cx/1842841845840849/The-Iron-Trial-Magisterium-1-by-Holly-Black.pdf
    • http://easckaolp.myhome.cx/9849843842/The-Iron-Trial-Magisterium-1-by-Holly-Black.pdf
    • http://easckaolp.myhome.cx/7840846840840842/Articles-on-Dying-Earth-Subgenre-Including-Dying-Earth-the-Dying-Earth-the-Eyes-of-the-Overworld-Cugel-s-Saga-Turjan-Rhialto-the-Marvellous-Tales-of-the-Dying-Earth-Liane-the-Wayfarer-Songs-of-the-Dying-Earth-the-Time-Machine-by-Hephaestus-Books.pdf
    • http://easckaolp.myhome.cx/6841840844848847/Iron-Man-mon-voyage-au-paradis-et-en-enfer-avec-Black-Sabbath-by-Tony-Iommi.pdf
    • http://easckaolp.myhome.cx/3843842848843/The-Black-Jewels-Trilogy-Daughter-of-the-Blood-Heir-to-the-Shadows-Queen-of-the-Darkness-The-Black-Jewels-1-3-by-Anne-Bishop.pdf
    • http://easckaolp.myhome.cx/3845843841848843/A-Little-Blood-The-Blood-Bond-Trilogy-Book-1-by-Aimer-Boyz.pdf
    • http://easckaolp.myhome.cx/2842840840844848/Enthralled-Breeds-19-5-League-of-the-Black-Swan-1-5-Iron-Seas-3-5-Children-of-the-Moon-3-5-by-Lora-Leigh.pdf
    • http://easckaolp.myhome.cx/3848848849/Blood-of-the-Earth-Soulwood-1-by-Faith-Hunter.pdf

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