Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2db10998526b6b7…

MALICIOUS

PDF

19.5 KB Created: 2019-05-02 19:28:33 +01:00 Authoring application: mPDF 5.7
MD5: a585981e08c7ac6ae9d1b3dfe05ec858 SHA-1: a56e88001bef4ab45b173088b02f163968b901ca SHA-256: a2db10998526b6b743d1acd52c4bc72c095de214c8dd40a1599da3821284d072
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily corrupted, the presence of numerous links suggests a malicious intent, possibly for SEO manipulation or to redirect users to malicious sites. The ML classifier also strongly flagged this PDF as malicious. 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://loaminoo.linkpc.net/4095099099091092/The-Complete-Illustrated-Poems-Songs-amp-Ballads-by-Robert-Burns.pdf
    • http://loaminoo.linkpc.net/1092095091093093/Poems-and-Songs-by-Robert-Burns.pdf
    • http://loaminoo.linkpc.net/2095095094094096/Soldier-Songs-and-Home-Front-Ballads-of-the-Civil-War-by-Irwin-Silber.pdf
    • http://loaminoo.linkpc.net/8092096094092091/Ventures-Into-Verse-Being-Various-Ballads-Ballades-Rondeaux-Triolets-Songs-Quatrains-Odes-and-Roundels-by-H-L-Mencken.pdf
    • http://loaminoo.linkpc.net/1091090092098097099/Earth-Air-Fire-Water-Pre-Christian-and-Pagan-Elements-in-British-Songs-Rhymes-and-Ballads-by-Robin-Skelton.pdf
    • http://loaminoo.linkpc.net/1093099093097094/Burns-A-Biography-of-Robert-Burns-by-James-A-MacKay.pdf
    • http://loaminoo.linkpc.net/1098096094093096/Selected-Burns-for-Young-Readers-by-Robert-Burns.pdf
    • http://loaminoo.linkpc.net/3098099093091092/Still-the-Dawn-Poems-and-Ballads-by-Philip-Dodd.pdf
    • http://loaminoo.linkpc.net/7097091090093099/Wizard-of-Oz-Illustrated-Annotated-Complete-Collection-Deluxe-Illustrated-by-L-Frank-Baum.pdf
    • http://loaminoo.linkpc.net/7095091094095092/THE-COUNT-OF-MONTE-CRISTO-Illustrated-All-Five-Volumes-Complete-and-Illustrated-Edition-by-Alexandre-Dumas.pdf
    • http://loaminoo.linkpc.net/1093099093090092/The-Bard-Robert-Burns-a-Biography-by-Robert-Crawford.pdf
    • http://loaminoo.linkpc.net/5091090095093094/Franz-Schubert-The-Complete-Songs-by-Graham-Johnson.pdf
    • http://loaminoo.linkpc.net/4099093094095097/Rope-Burns-by-Robert-Scott.pdf
    • http://loaminoo.linkpc.net/4098094096091/Poems-from-Ish-River-Country-Collected-Poems-and-Translations-by-Robert-Sund.pdf
    • http://loaminoo.linkpc.net/8098096095090095/45-Songs-on-Poems-of-Goethe-and-Eichendorff-for-Voice-and-Piano-by-Hugo-Wolf.pdf
    • http://loaminoo.linkpc.net/7098090095096092/The-Burning-Word-Poems-amp-Songs-by-Jehanne-Margaret-Joyce-Mehta.pdf
    • http://loaminoo.linkpc.net/2099093090092098/Angel-Songs-20-Christmas-Short-Stories-and-Poems-plus-Recipes-by-Dona-Watson.pdf
    • http://loaminoo.linkpc.net/4097096091094097/Robert-Burns-The-Tinder-Heart-by-Hugh-Douglas.pdf
    • http://loaminoo.linkpc.net/7095097090092/The-Koren-Megillat-Shir-Hashirim-A-Hebrew-English-Illustrated-Song-of-Songs-by-Koren-Publishers-Jerusalem.pdf
    • http://loaminoo.linkpc.net/8095092098099090/War-and-Peace-Complete-amp-Illustrated-by-Leo-Tolstoy.pdf
    • http://loaminoo.linkpc.net/1098096094093096/Selected-Burns-for-Young-Readers-b