Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bf265abb67cb2b2…

MALICIOUS

PDF

21.3 KB Created: 2019-05-02 22:43:14 +01:00 Authoring application: mPDF 5.7
MD5: b24e5e10ca84e450a52ab0cddbd04f1a SHA-1: 401247ed56759bce49aee34e40e83dd269ef6fb0 SHA-256: 7bf265abb67cb2b2665a4a04640c6cf5e139f65cbc6722667288dd0b824552d0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, characteristic of a link farm or SEO spam technique. While the document body is heavily obfuscated, the heuristic firings and embedded URLs strongly suggest an attempt to direct users to potentially malicious or unwanted content. The ML classifier also flagged this PDF as malicious.

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/5091091096096/The-Plains-Across-The-Overland-Emigrants-and-the-Trans-Mississippi-West-1840-60-by-John-D-Unruh.pdf
    • http://loaminoo.linkpc.net/5091090099095098/Walker-s-Texas-Division-C-S-A-Greyhounds-Of-The-Trans-Mississippi-by-Richard-G-Lowe.pdf
    • http://loaminoo.linkpc.net/5090096098090094/The-Way-to-the-West-Essays-on-the-Central-Plains-by-Elliott-West.pdf
    • http://loaminoo.linkpc.net/8090097092097095/The-Longest-Road-Overland-in-Search-of-America-from-Key-West-to-the-Arctic-Ocean-by-Philip-Caputo.pdf
    • http://loaminoo.linkpc.net/9099097099099097/Mississippi-Wagons-West-15-by-Dana-Fuller-Ross.pdf
    • http://loaminoo.linkpc.net/5091098090091095/The-History-of-Events-Resulting-in-Indian-Consolidation-West-of-the-Mississippi-by-Annie-Heloise-Abel.pdf
    • http://loaminoo.linkpc.net/4092090095095095/The-Mystic-Warriors-of-the-Plains-The-Culture-Arts-Crafts-and-Religion-of-the-Plains-Indians-by-Thomas-E-Mails.pdf
    • http://loaminoo.linkpc.net/3094099098090096/One-Mississippi-Two-Mississippi-Methodists-Murder-and-the-Struggle-for-Racial-Justice-in-Neshoba-County-by-Carol-V-R-George.pdf
    • http://loaminoo.linkpc.net/9090092093092/Murder-in-Mississippi-by-John-Safran.pdf
    • http://loaminoo.linkpc.net/9099098092090097/Ghosts-Along-The-Mississippi-by-Clarence-John-Laughlin.pdf
    • http://loaminoo.linkpc.net/2090091094096094/High-Plains-Promise-Love-on-the-High-Plains-2-by-Simone-Beaudelaire.pdf
    • http://loaminoo.linkpc.net/1094096098091093/High-Plains-Holiday-Love-on-the-High-Plains-1-by-Simone-Beaudelaire.pdf
    • http://loaminoo.linkpc.net/9099098090096098/Three-Mississippi-One-Mississippi-3-by-Howard-Littleson.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/5092092094098090/From-Midnight-to-Guntown-True-Crime-Stories-from-a-Federal-Prosecutor-in-Mississippi-by-John-Hailman.pdf
    • http://loaminoo.linkpc.net/1095091090097094/The-Emigrants-by-W-G-Sebald.pdf
    • http://loaminoo.linkpc.net/9099098091099098/A-Mississippi-Moonlight-Mississippi-Moonlight-1-by-Vicky-Renee-Johnson.pdf
    • http://loaminoo.linkpc.net/3090092093091097/The-Last-Letter-Home-The-Emigrants-4-by-Vilhelm-Moberg.pdf
    • http://loaminoo.linkpc.net/1096094093090093/The-Wooden-Spaceships-Land-and-Overland-Series-2-by-Bob-Shaw.pdf
    • http://loaminoo.linkpc.net/1093091098098090/Inspector-West-at-Bay-Inspector-West-13-by-John-Creasey.pdf

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