Malicious PDF — malware analysis report

Static analysis result for SHA-256 3328b0f9afb0be24…

MALICIOUS

PDF

21.4 KB Created: 2019-05-02 01:08:57 +01:00 Authoring application: mPDF 5.7
MD5: 12091ff21fbd074e9255a24e58fa6e85 SHA-1: 3aa4bf29236771261f5ba205fcd0dbc8a7977fd6 SHA-256: 3328b0f9afb0be24dd229524db3446f887e4e65f503da56c489f7685e4ac4c3b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or distribution mechanism. The ML classifier also flagged the PDF as malicious with high confidence. While no scripts were extracted, the sheer volume of links points to a malicious intent, likely to redirect users to malicious sites or to manipulate search engine results.

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://unieoooq.linkpc.net/84e44e24e84e64e2/The-Murder-of-Roger-Ackroyd-The-Mystery-of-the-Blue-Train-Dumb-Witness-Death-on-the-Nile-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/14e04e54e64e94e64e3/The-Mysterious-Affair-at-Styles-A-Hercule-Poirot-Mystery-Agatha-Christie-Collection-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/14e04e94e24e34e84e3/Agatha-Christie-Crime-Collection-Evil-Under-The-Sun-Death-Comes-As-The-End-The-Sittaford-Mystery-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/54e64e44e04e94e8/Murder-Along-the-Blue-Ridge-A-Rachel-Christie-Mystery-6-Rachel-Christie-Mystery-Series-by-Sabena-Stone.pdf
    • http://unieoooq.linkpc.net/34e74e14e74e84e9/The-Blue-Geranium-and-Other-Stories-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/74e14e14e74e64e8/De-verfilmde-bestsellers-van-Agatha-Christie-Moord-in-de-Ori-nt-Expres-De-moordenaar-waagt-een-gok-Drama-in-drie-bedrijven-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/44e94e24e24e74e7/The-Mysterious-Affair-at-Styles-and-The-Secret-Adversary-Complete-works-of-Agatha-Christie-Vol-1-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/74e94e14e34e44e5/The-Mysterious-Affair-at-Styles-by-Agatha-Christie-Annotated-James-Lynn-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/24e54e14e34e34e2/A-Caribbean-Mystery-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/14e14e84e74e04e74e6/Miss-Marple-and-Mystery-Over-50-Stories-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/34e54e54e94e14e4/A-Caribbean-Mystery-Miss-Marple-10-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/74e64e14e84e94e2/The-Mystery-of-the-Spanish-Chest-A-Short-Story-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/34e54e94e34e64e3/The-Market-Basing-Mystery-A-Short-Story-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/74e64e54e44e54e6/The-Adventure-of-the-Egyptian-Tomb-An-Inspector-Poirot-Mystery-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/74e64e24e04e14e8/Black-Coffee-A-Mystery-Play-in-Three-Acts-Hercule-Poirot-7-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/74e34e14e94e64e6/And-Then-There-Were-None-Agatha-Christie---HINDI-Book-1-by-Agatha-Christie.pdf
    • http://unieoooq.linkpc.net/34e74e44e04e54e5/Agatha-The-Real-Life-of-Agatha-Christie-by-Anne-Martinetti.pdf
    • http://unieoooq.linkpc.net/24e74e04e84e3/The-Complete-Christie-An-Agatha-Christie-Encyclopedia-by-Matthew-Bunson.pdf
    • http://unieoooq.linkpc.net/54e64e44e14e04e1/Murder-in-Emerald-Hills-A-Rachel-Christie-Mystery-2-Rachel-Christie-Mystery-Series-by-Sabena-Stone.pdf
    • http://unieoooq.linkpc.net/44e84e54e14e64e3/And-Then-There-Were-None-by-Agatha-Christie.pdf

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