Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1f01d5244c5bc99…

MALICIOUS

PDF

15.0 KB Created: 2019-04-29 22:59:21 +01:00 Authoring application: mPDF 5.7
MD5: 02ff4af25f9b0f6407f4eceae1f7d52b SHA-1: faa345ae829812ad3661b281bdffcf9b73744184 SHA-256: f1f01d5244c5bc9985b07850aeaa98b89fc1eedd2f4e65cc0775f12294d2c70a
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of embedded links, indicative of a link farm or SEO manipulation tactic. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent to redirect users to potentially harmful content or to manipulate search engine rankings. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific payload.

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://loaminoo.linkpc.net/1093090099092097/Mildred-and-Elsie-Mildred-Keith-3-by-Martha-Finley.pdf
    • http://loaminoo.linkpc.net/1099099099093/My-Jewish-Face-amp-Other-Stories-by-Melanie-Kaye-Kantrowitz.pdf
    • http://loaminoo.linkpc.net/3097097097094099/Maxie-Mainwaring-Lesbian-Dilettante-by-Monica-Nolan.pdf
    • http://loaminoo.linkpc.net/2091098092092097/Nosy-in-Nebraska-Maxie-Mouse-Mystery-1-3-by-Mary-Connealy.pdf
    • http://loaminoo.linkpc.net/7096095098090095/Irresistible-Invitation-40-Day-Reading-Book-Responding-to-the-Extravagant-Heart-of-God-by-Maxie-D-Dunnam.pdf
    • http://loaminoo.linkpc.net/1095091090099090/The-Rock-And-The-Willow-by-Mildred-Lee.pdf
    • http://loaminoo.linkpc.net/1094092098090/Touchmark-by-Mildred-Lawrence.pdf
    • http://loaminoo.linkpc.net/2094090095093091/Mildred-Pierce-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/4091092099095098/How-to-Take-Charge-of-Your-Life-by-Mildred-Newman.pdf
    • http://loaminoo.linkpc.net/1093097091099093/Mildred-Pierce-by-James-M-Cain.pdf
    • http://loaminoo.linkpc.net/1095092099099/Let-the-Circle-Be-Unbroken-by-Mildred-D-Taylor.pdf
    • http://loaminoo.linkpc.net/9091097090094/Song-of-the-Trees-Logans-3-by-Mildred-D-Taylor.pdf
    • http://loaminoo.linkpc.net/1094090099095/Anna-to-the-Infinite-Power-by-Mildred-Ames.pdf
    • http://loaminoo.linkpc.net/1090093099090098099/Stop-Bullying-Bobby-by-Mildred-Seelig.pdf
    • http://loaminoo.linkpc.net/5095090097095099/Mildred-s-Resistance-The-Network-Series-0-5-by-Katie-Cross.pdf
    • http://loaminoo.linkpc.net/1094092096094/Roll-of-Thunder-Hear-My-Cry-Logans-4-by-Mildred-D-Taylor.pdf
    • http://loaminoo.linkpc.net/3093092094098096/Second-Daughter-The-Story-of-a-Slave-Girl-by-Mildred-Pitts-Walter.pdf
    • http://loaminoo.linkpc.net/6097098092098091/Historic-Scenes-by-Mildred-Pelzer-1934-by-Bob-Hibbs-Bishop.pdf
    • http://loaminoo.linkpc.net/5090092094097097/Wrapped-for-Eternity-The-Story-of-the-Egyptian-Mummy-by-Mildred-Mastin-Pace.pdf
    • http://loaminoo.linkpc.net/2093097090094090/Adam-s-Bride-A-Brothers-of-Clear-Water-Romance-by-Mildred-B-Lewis.pdf
    • http://loaminoo.linkpc.net/1095092099099/Let-the-Circle-Be-Unbroken-by-Mildr

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