Malicious PDF — malware analysis report

Static analysis result for SHA-256 c05134e97cb8f3fb…

MALICIOUS

PDF

14.6 KB Created: 2019-05-07 04:30:46 +01:00 Authoring application: mPDF 5.7
MD5: 050569800a75ae16fb50c54191948d8a SHA-1: 8d595038c2b911ac71c80d4ea2a835c941c86acd SHA-256: c05134e97cb8f3fb0c5198b69881a7bc380a924c5e9fee9f6df5f55182134a9e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded URLs, indicative of a link farm or SEO poisoning attack. While no scripts were extracted, the sheer volume of links suggests an attempt to direct users to potentially malicious external content. The attack pattern is consistent with social engineering tactics to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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://unieoooq.linkpc.net/64e14e84e74e14e7/The-Untold-Story-by-Rufin-Ondoua.pdf
    • http://unieoooq.linkpc.net/34e84e54e84e44e6/Monogamy-The-Untold-Story-by-Marianne-Brandon.pdf
    • http://unieoooq.linkpc.net/14e04e94e94e44e64e3/Big-Brown-The-Untold-Story-of-UPS-by-Greg-Niemann.pdf
    • http://unieoooq.linkpc.net/34e64e74e34e84e9/The-Third-World-War-The-Untold-Story-by-John-W-Hackett.pdf
    • http://unieoooq.linkpc.net/44e34e64e04e94e2/One-and-Only-The-Untold-Story-of-On-the-Road-by-Gerald-Nicosia.pdf
    • http://unieoooq.linkpc.net/14e04e94e94e34e14e8/Big-Brown-The-Untold-Story-of-Ups-by-Greg-Niemann.pdf
    • http://unieoooq.linkpc.net/44e44e14e94e14e7/Alice-in-Chains-The-Untold-Story-by-David-de-Sola.pdf
    • http://unieoooq.linkpc.net/74e84e14e24e04e5/Shrinks-The-Untold-Story-of-Psychiatry-by-Jeffrey-A-Lieberman.pdf
    • http://unieoooq.linkpc.net/54e44e84e34e84e5/You-Can-t-Try-a-Dead-Man-The-Untold-Story-of-Injustice-by-Judee-Howard.pdf
    • http://unieoooq.linkpc.net/94e44e84e04e0/Dating-the-Messenger-The-Untold-Story-of-a-Clairvoyant-by-K-Taylor.pdf
    • http://unieoooq.linkpc.net/24e24e34e54e44e8/Errol-Flynn-The-Untold-Story-by-Charles-Higham.pdf
    • http://unieoooq.linkpc.net/94e64e14e24e9/Nightmare-USA-The-Untold-Story-of-the-Exploitation-Independents-by-Stephen-Thrower.pdf
    • http://unieoooq.linkpc.net/24e24e74e94e74e5/Born-to-Be-Hurt-The-Untold-Story-of-Imitation-of-Life-by-Sam-Staggs.pdf
    • http://unieoooq.linkpc.net/34e84e34e54e64e3/Crusade-The-Untold-Story-of-the-Persian-Gulf-War-by-Rick-Atkinson.pdf
    • http://unieoooq.linkpc.net/24e94e44e94e54e9/Mary-B-An-Untold-Story-of-Pride-and-Prejudice-by-Katherine-J-Chen.pdf
    • http://unieoooq.linkpc.net/34e44e94e24e24e9/Decide-Declan-Reede-The-Untold-Story-0-5-by-Michelle-Irwin.pdf
    • http://unieoooq.linkpc.net/44e24e44e84e94e0/Howard-Hughes-The-Untold-Story-by-Peter-Harry-Brown.pdf
    • http://unieoooq.linkpc.net/14e04e34e34e84e8/Eruption-The-Untold-Story-of-Mount-St-Helens-by-Steve-Olson.pdf
    • http://unieoooq.linkpc.net/94e14e34e84e84e0/Doris-Day-The-Untold-Story-of-the-Girl-Next-Door-by-David-Kaufman.pdf
    • http://unieoooq.linkpc.net/44e84e44e54e54e3/Eruption-The-Untold-Story-of-Mount-St-Helens-by-Steve-Olson.pdf
    • http://unieoooq.linkpc.net/24e24e34e54e44e8/Errol-Flynn-The-Untold-S