Malicious PDF — malware analysis report

Static analysis result for SHA-256 808100a0af0f876d…

MALICIOUS

PDF

17.9 KB Created: 2019-05-02 18:21:06 +01:00 Authoring application: mPDF 5.7
MD5: 39b34abf0d34da121bbd7047b03cf70f SHA-1: e1cd59ca70e2416a278ed607b76560ea1ceab1b7 SHA-256: 808100a0af0f876de8037da97b5a917aa36034c83a87ea3d621ebfebce6a2fe4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs point to various book titles, but the sheer volume and the nature of the heuristic suggest a malicious intent, likely 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 0.9925

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/3096098091099099/The-Promised-Land-The-Great-Black-Migration-and-How-It-Changed-America-by-Nicholas-Lemann.pdf
    • http://loaminoo.linkpc.net/8091093094095/The-Warmth-of-Other-Suns-The-Epic-Story-of-America-s-Great-Migration-by-Isabel-Wilkerson.pdf
    • http://loaminoo.linkpc.net/1094092090098099/Rising-Tide-The-Great-Mississippi-Flood-of-1927-and-How-It-Changed-America-by-John-M-Barry.pdf
    • http://loaminoo.linkpc.net/2095090098095099/The-Defender-How-the-Legendary-Black-Newspaper-Changed-America-by-Ethan-Michaeli.pdf
    • http://loaminoo.linkpc.net/7097093095099/Towards-the-Promised-Land-Out-of-Jerusalem-3-by-H-B-Moore.pdf
    • http://loaminoo.linkpc.net/3099094098094/Manchild-in-the-Promised-Land-by-Claude-Brown.pdf
    • http://loaminoo.linkpc.net/6095094097098097/Fatherland-or-Promised-Land-by-Jehuda-Reinharz.pdf
    • http://loaminoo.linkpc.net/2091090093094091/Day-of-Remembrance-The-Promised-Land-Vol-4-by-David-G-Woolley.pdf
    • http://loaminoo.linkpc.net/4097095090095093/Manchild-in-the-Promised-Land-by-Claude-Brown.pdf
    • http://loaminoo.linkpc.net/2090094091097096/Naked-in-the-Promised-Land-A-Memoir-by-Lillian-Faderman.pdf
    • http://loaminoo.linkpc.net/1099099098097/Exile-in-the-Promised-Land-A-Memoir-by-Marcia-Freedman.pdf
    • http://loaminoo.linkpc.net/1091092098096098093/La-tierra-prometida-The-Promised-Land-by-Joachim-Masannek.pdf
    • http://loaminoo.linkpc.net/2091090092094096/Power-of-Deliverance-The-Promised-Land-2-by-David-G-Woolley.pdf
    • http://loaminoo.linkpc.net/3097098096090097/Naked-in-the-Promised-Land-A-Memoir-by-Lillian-Faderman.pdf
    • http://loaminoo.linkpc.net/4091094097091096/Oh-Promised-Land-Dabney-Family-Saga-1-by-James-H-Street.pdf
    • http://loaminoo.linkpc.net/3099098098097091/Compass-The-Journey-of-the-Soul-from-Egypt-to-the-Promised-Land-by-Penelope-V-Yorke.pdf
    • http://loaminoo.linkpc.net/2093093096097091/The-Prophetess-Deborah-s-Story-Daughters-of-the-Promised-Land-2-by-Jill-Eileen-Smith.pdf
    • http://loaminoo.linkpc.net/5096091096092099/We-Are-Coming-Unafraid-The-Jewish-Legions-and-the-Promised-Land-in-the-First-World-War-by-Michael-Keren.pdf
    • http://loaminoo.linkpc.net/2097094095095099/America-Never-Promised-Us-Happiness-by-L-A-Lemmons.pdf
    • http://loaminoo.linkpc.net/1095092093094099/Redeeming-Grace-Ruth-s-Story-Daughters-of-the-Promised-Land-3-by-Jill-Eileen-Smith.pdf

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