Malicious PDF — malware analysis report

Static analysis result for SHA-256 50df66ea26f1cf5b…

MALICIOUS

PDF

125.7 KB Created: 2020-03-16 10:44:04 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: 762347c0894c015cba72e4eade59c6db SHA-1: 16a809f97fdd9edf60c20a88e6d71c65e2d29c5f SHA-256: 50df66ea26f1cf5baa45cd4baca101592f319cbadb956ac485f74c520e5047d2
96 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The document body contains garbled text but includes a reference to 'State of Tennessee incident reporting system', which may be a lure. The primary attack pattern involves directing users to these external URLs, which could host further malicious content or phishing pages.

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://thehnossaproject.com/uploads/1/3/0/6/130621628/130621628.html#state+of+tennessee+incident+reporting+system PDF link annotation
    • http://www.skylinegaming.net/uploads/1/3/0/3/130312951/797020.pdfIn PDF document text
    • http://campdogdesign.com/uploads/1/3/0/5/130548108/dabatel.pdfIn PDF document text
    • http://luka-door.ca/uploads/1/3/0/4/130490776/wavodizenur.pdfIn PDF document text
    • http://artm.online/uploads/1/3/0/6/130604517/4997526.pdfIn PDF document text
    • http://alamodecollections.com/uploads/1/3/0/8/130873902/konebis-toluguk-gozutatoteji-zukijufilafipaf.pdfIn PDF document text
    • http://elizabethbrowndesign.com/uploads/1/3/0/4/130489350/sanorefakewolew-bipuwefa-teteb-nimeweba.pdfIn PDF document text
    • http://yourpublicistknows.com/uploads/1/3/0/5/130539763/b6003d.pdfIn PDF document text
    • http://www.royalbankcu.com/uploads/1/3/0/7/130739980/73b0cd15f83.pdfIn PDF document text
    • http://www.tomfernsfilms.co.uk/uploads/1/3/0/5/130539427/5373161.pdfIn PDF document text
    • http://canadianvalleypediatrics.net/uploads/1/3/0/5/130589295/rutupapupesojadi.pdfIn PDF document text
    • http://centient.co.uk/uploads/1/3/0/4/130491752/d28f9402fe.pdfIn PDF document text
    • http://captraining12.com/uploads/1/3/0/6/130621575/1123106.pdfIn PDF document text
    • http://noreenwilliams-gibbs.com/uploads/1/3/0/4/130436204/5343519.pdfIn PDF document text
    • http://minyounglee8682.com/uploads/1/3/0/2/130291365/7307275.pdfIn PDF document text
    • http://wwwtwelectricalhandyman.com/uploads/1/3/0/6/130639517/40a0185.pdfIn PDF document text
    • http://cutandtapegirl.com/uploads/1/3/0/7/130775911/8743218b875.pdfIn PDF document text
    • http://noctiphyte.com/uploads/1/3/0/7/130775358/gapugulut-zevinumiri-vixazivogip-fojaxofidevijax.pdfIn PDF document text
    • http://ransolisprofessionalportfolio.com/uploads/1/3/0/6/130603978/c5d3c9.pdfIn PDF document text
    • http://labs-your-way.com/uploads/1/3/0/7/130739143/fewezesip.pdfIn PDF document text
    • http://smartfaresnow.com/uploads/1/3/0/4/130493714/4226257.pdfIn PDF document text
    • http://hostmaster.summersongmusiccamp.com/uploads/1/3/0/5/130551720/70092820.pdfIn PDF document text
    • http://www.framze.com/uploads/1/3/0/7/130776553/vunivapajelo.pdfIn PDF document text
    • http://www.whitehorsemasonryservices.com/uploads/1/3/0/4/130488884/b38ea90a359cfa.pdfIn PDF document text
    • http://mmsestatelettings.com/uploads/1/3/0/4/130435670/miperilamoxeji_xasupu_kodovavad_bepefuwadip.pdfIn PDF document text
    • http://1beechbrewing.com/uploads/1/3/0/5/130546294/mefej.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C668 8944 bytes
SHA-256: c5f9e29f85ed2598c48ffd2f4da79dc223f3d67401c14d2f41438fd26b653a9b

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