Malicious PDF — malware analysis report

Static analysis result for SHA-256 01ff9fb955cb9859…

MALICIOUS

PDF

39.8 KB Created: 2020-03-28 05:52:30 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 905fe144b9383a1d373618f9cd8f356d SHA-1: c44a29216b288459c154bdbbe8fa52b8f9a675fc SHA-256: 01ff9fb955cb9859353ca96319370de4a34c36c0114313f228c7352580290a7c
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous external links, identified as a link farm, suggesting an attempt to manipulate search engine results or redirect users to malicious content. The presence of a 'download' button lure further supports a phishing or social engineering attack. While no scripts were explicitly extracted, the PDF structure and extensive external linking are indicative of a malicious document designed to lead users to potentially harmful resources.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://searchornurture.com/uploads/1/3/0/4/130477414/130477414.html#hp+photosmart+plus+b210+software+download
    • http://bitmoneymasters.com/uploads/1/3/0/3/130323622/7904472.pdf
    • http://logicalaxis.net/uploads/1/3/0/7/130738861/4390023.pdf
    • http://74-123-73-75.mgwnet.com/uploads/1/3/0/5/130588319/5421311.pdf
    • http://rareperfectionbeauty.com/uploads/1/3/0/6/130620356/sedotasefaseguk.pdf
    • http://johnmcfee.com/uploads/1/3/0/4/130476403/pexemudapelew.pdf
    • http://www.bethanyclarephotography.com/uploads/1/3/0/4/130435755/0f7300587b.pdf
    • http://www.privatehousekeepers.com.au/uploads/1/3/0/6/130639062/da578c1160436ca.pdf
    • http://www.kevina.com/uploads/1/3/0/9/130969701/a2df2f87069c.pdf
    • http://camillecoklow.com/uploads/1/3/0/6/130603907/61c0afa8a2.pdf
    • http://mingalarfoods.com/uploads/1/3/0/4/130476601/8059340.pdf
    • http://studiopink42.com/uploads/1/3/0/2/130287886/48fccd.pdf
    • http://lafamiliaskagen.com/uploads/1/3/0/6/130604699/6042977.pdf
    • http://rooftopmissions.com/uploads/1/3/0/4/130476649/tireledolonevelizibe.pdf
    • http://dentalimplantsbeaverton.com/uploads/1/3/0/4/130476006/wumemosukefojofube.pdf
    • http://zahnallianz.eu/uploads/1/3/0/5/130538959/wafiz.pdf
    • http://paulsmeyer.thomax-media.de/uploads/1/3/0/3/130323106/3757202.pdf
    • http://forcevolleyball.org/uploads/1/3/1/4/131411078/1344718.pdf
    • http://edspartner.com/uploads/1/3/0/7/130739971/xupawo_sokadene.pdf
    • http://www.hair-studio.eu/uploads/1/3/0/7/130739892/b6bc18343.pdf
    • http://newroostrealty.com/uploads/1/3/0/8/130814861/geguvawopuj.pdf
    • http://bottleandcappy.com/uploads/1/3/0/5/130551166/vodesosepuvi.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071ec.bin
857b57337cf8690b1d993e49d3211c7ed33dddaaf09693d5ef4c735298371da2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71EC 8036 bytes

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