Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bf30d94fdfc6802…

MALICIOUS

PDF

35.4 KB Created: 2020-05-24 00:05:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 659c7654f283d052c75ffa42298a9349 SHA-1: 5697dc430a86f98ea08aeecfbfe0f840803bb533 SHA-256: 6bf30d94fdfc680291abddd635122e90fac3eb17b40f7e6f2dec9ea9c62b5fe9
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a PDF_SEO_LINK_FARM heuristic, suggesting a link-building or SEO manipulation scheme. The embedded document body text and the primary extracted URL, 'http://insightfamilycenter.gammaxiques.org/uploads/1/3/0/5/130589050/130589050.html#dopo+tablet+reset', indicate a potential lure related to device resets or technical support. No scripts were extracted, but the sheer volume of outbound links points to a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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://insightfamilycenter.gammaxiques.org/uploads/1/3/0/5/130589050/130589050.html#dopo+tablet+reset
    • http://planbforretirement.com/uploads/1/3/0/7/130775034/kafesozu.pdf
    • http://shavanoparktreeservice.com/uploads/1/3/1/4/131483126/burorakesiv_jisisodalafeliw_ratonev_sipimixore.pdf
    • http://donaldpapaibooks.com/uploads/1/3/0/7/130775653/jovud.pdf
    • http://matthewherbertsculpture.com/uploads/1/3/0/4/130488308/cff24613049.pdf
    • http://gallonforyou.com/uploads/1/3/0/8/130813325/6ce88.pdf
    • http://7email.net/uploads/1/3/1/3/131379268/xusajukow.pdf
    • http://yogasimplifiedmethod.com/uploads/1/3/0/5/130588571/daleluj.pdf
    • http://paradisenightlyrentals.com/uploads/1/3/0/4/130476896/nunotig_nopaz_pelan.pdf
    • http://jacotfamily.com/uploads/1/3/0/9/130969335/vixebujoj.pdf
    • http://balancepilatesandmassage.com/uploads/1/3/1/4/131453648/wedizoga.pdf
    • http://salsipuedesstreetmovie.com/uploads/1/3/0/5/130588875/mezud.pdf
    • http://fishingcatfilms.com/uploads/1/3/0/4/130476332/pozamimolik-fakof.pdf
    • http://mail.anitopiainc.com/uploads/1/3/0/7/130776875/suzejajom.pdf
    • http://litchiebook.com/uploads/1/3/1/0/131070590/migivefal.pdf
    • http://yarnwitches.com/uploads/1/3/0/8/130814933/kexisitagufamet.pdf
    • http://3rhconstructiongroupllc.net/uploads/1/3/0/4/130489448/5717298.pdf
    • http://i-conscious.org/uploads/1/3/1/4/131453919/101c4e6fd5d3450.pdf
    • http://mindfullywellfit.com/uploads/1/3/0/6/130639258/3730954.pdf
    • http://willdealwheels.com/uploads/1/3/0/6/130621240/7d66e.pdf
    • http://wakingwomen.net/uploads/1/3/1/8/131872281/7522259.pdf
    • http://olsencoaching.com/uploads/1/3/0/6/130639803/zejukurunodawor-rufezum-pajiralaxor.pdf
    • http://prairiewindrv.com/uploads/1/3/0/7/130739584/8ab9b97fe84a25c.pdf
    • http://newportfamilyfarms.com/uploads/1/3/1/4/131453630/famapoxa.pdf
    • http://msmcelroy.net/uploads/1/3/0/6/130621200/d2ccbc0954b671.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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/
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e36.bin
3a479c0f0fce6d71417e7809a7251d71ef22d0e2f35c812ae679ffdf7fd52b5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E36 10444 bytes

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