Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fcfdac22b443310…

MALICIOUS

PDF

41.0 KB Created: 2020-05-18 17:18:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-08-10
MD5: 735722591df6815df192c8bf3c51bd49 SHA-1: e2ee966478b140221b17032e57c1a6a24fad775e SHA-256: 2fcfdac22b443310dab43b2ca5d73eb23e9283ca67a5f153601026b7e73bf7bb
96 Risk Score

Malware Insights

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

The PDF file contains a significant 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 a reference to 'Super Mario Galaxy Minecraft map 1.8', which appears to be a lure to attract clicks. No scripts were extracted from this sample, but the extensive link farm indicates a malicious intent to direct users to potentially harmful content hosted on numerous external sites.

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://mytajfashionincorporated.com/uploads/1/3/0/4/130483373/130483373.html#super+mario+galaxy+minecraft+map+1.8 PDF link annotation
    • http://xavierernstnp.com/uploads/1/3/1/3/131383959/4405114.pdfIn PDF document text
    • http://southlandmobilenotary.com/uploads/1/3/0/7/130776133/ed525c091c98.pdfIn PDF document text
    • http://bernardocovaswebsitepreview.online/uploads/1/3/1/8/131857117/jixajobabivawe.pdfIn PDF document text
    • http://bhmoffroadtestfacility.com/uploads/1/3/0/7/130776168/6504927.pdfIn PDF document text
    • http://ramesart.com/uploads/1/3/0/8/130873795/d9237ac.pdfIn PDF document text
    • http://portillopartners.com/uploads/1/3/0/8/130874090/a21ac695b5a.pdfIn PDF document text
    • http://sorteoiphone11.com/uploads/1/3/0/4/130488861/cf24728b211909.pdfIn PDF document text
    • http://finishpaint.com/uploads/1/3/0/3/130312951/7807136.pdfIn PDF document text
    • http://kaderfilm.de/uploads/1/3/1/8/131856531/f9be4.pdfIn PDF document text
    • http://bsatroop510.org/uploads/1/3/1/4/131411600/zogifiviro.pdfIn PDF document text
    • http://joostdesigns.com/uploads/1/3/0/8/130814529/wigad.pdfIn PDF document text
    • http://tearohaprimary.com/uploads/1/3/1/6/131606146/sezaka-devodigoku.pdfIn PDF document text
    • http://titchandburts.com/uploads/1/3/0/9/130969449/d8c74e56a.pdfIn PDF document text
    • http://loverocks.shop/uploads/1/3/0/9/130969645/2442177.pdfIn PDF document text
    • http://victoriateachingartist.com/uploads/1/3/0/6/130639824/kupazezowef.pdfIn PDF document text
    • http://texascommodities.com/uploads/1/3/1/6/131606395/3eaf53bb2.pdfIn PDF document text
    • http://emilycriss.com/uploads/1/3/0/7/130776872/6855371.pdfIn PDF document text
    • http://ellanah.com/uploads/1/3/0/8/130814280/dagunorod_mivezoloto.pdfIn PDF document text
    • http://nvcvb.net/uploads/1/3/1/3/131398380/pulemivaz.pdfIn PDF document text
    • http://armandossupermarket.com/uploads/1/3/0/4/130436079/6226152.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2D 10436 bytes
SHA-256: 5263bb5e2a168dd074501b04f4aff368d10aa508473f08a7787315ac4d22eb9a
font_01_sfnt_off0000832a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x832A 16064 bytes
SHA-256: f7fb55aa7df24da556f1e6a14ff3e973b5c7274e6851c040e899454d18355684

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