Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e00b06b78d75207…

MALICIOUS

PDF

42.8 KB Created: 2020-03-28 02:54:52 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3c6e3782ffdbca439710c1a6a380f1a2 SHA-1: 95e3d81588d7599a69019bf222d6c0571f569b14 SHA-256: 6e00b06b78d752075c20904e5007a65b5b5ae623cd570e26e8c63e3bca22177e
96 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily corrupted, contains a reference to 'cooking merit badge prerequisites' and the authoring application 'wkhtmltopdf', suggesting a potential lure. The primary function appears to be directing users to a vast network of URLs, likely for SEO spam or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://angelsfamilyhomehealthcare.net/uploads/1/3/0/6/130621140/130621140.html#cooking+merit+badge+prerequisites
    • http://grillgurula.com/uploads/1/3/0/7/130776873/pafakejuginuval_jakukodomisudo_fivukozaramebop.pdf
    • http://thehappyhourchef.com/uploads/1/3/0/8/130874272/zexek_delusibagagos_fesale.pdf
    • http://mail.homelumberinc.com/uploads/1/3/0/4/130476733/1239437.pdf
    • http://dolphinhotel.info/uploads/1/3/1/1/131164112/1685849.pdf
    • http://www.rayjohannes.com/uploads/1/3/0/6/130639892/8848777.pdf
    • http://sevbuilding.com/uploads/1/3/1/3/131379615/fusesekedusun_wodegifeturinep.pdf
    • http://www.susancranston.com/uploads/1/3/0/5/130588570/dimonanurujoxa_bixixafojilevuk_bojanalida.pdf
    • http://www.trykksverte.com/uploads/1/3/0/5/130545753/1122770.pdf
    • http://mccurdyfabricating.com/uploads/1/3/0/4/130483491/dapek-gekakevu-bobazuze-mamolelij.pdf
    • http://flyingchange.farm/uploads/1/3/0/2/130272930/37712248cc805c.pdf
    • http://kenomar.net/uploads/1/3/0/7/130739363/tinivutibokiwutemin.pdf
    • http://asddigitalweek.com/uploads/1/3/0/2/130273850/rerunawobole-jaloser.pdf
    • http://www.goldcountrycamperrentals.com/uploads/1/3/0/6/130621985/813f15c7a.pdf
    • http://alyssavelasco.com/uploads/1/3/0/7/130775378/6c2882a085fcf.pdf
    • http://fitfoodsexpress.com/uploads/1/3/0/8/130873863/warotilanusegexil.pdf
    • http://luannscraftycreations.com/uploads/1/3/0/8/130815664/012ec3de503.pdf
    • http://cadysacademy.com/uploads/1/3/0/5/130588575/64ed37da15d.pdf
    • http://jonahneuwirth.com/uploads/1/3/0/6/130621691/nefalup.pdf
    • http://wiltshirepest.com/uploads/1/3/0/3/130324324/2824045.pdf
    • http://alphamaid.net/uploads/1/3/0/5/130551058/357849.pdf
    • http://hostmaster.fullwavemusic.com/uploads/1/3/0/6/130639802/832154.pdf
    • http://pixelbrain.net/uploads/1/3/0/3/130379104/dec272.pdf
    • http://dreampuffs.co/uploads/1/3/0/8/130814118/sibozesepeme.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_off00007e8a.bin
3efd9d82f78e9c29f798a584612b037d8402bdf208dcfa69f6debbaedf475db5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8A 7872 bytes

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