Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e189106d9464e08…

MALICIOUS

PDF

46.9 KB Created: 2020-03-07 12:40:42 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 492b3164a5a3259075553150b925d27a SHA-1: 4437f0cd06dd2a3cf424e889e04b6a279155c58f SHA-256: 2e189106d9464e083496bf870e3cf420430227d81d584754a376d97145eaf716
144 Risk Score

Malware Insights

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

The PDF document contains a lure related to browser extension installation and fake invoices, aiming to trick the user into downloading further malicious content. It embeds a large number of external links, many pointing to PDF files hosted on various domains, suggesting a link farm or redirection mechanism. The primary attack pattern involves social engineering to prompt the user to click on these links, which likely lead to malware or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://wangluoqipaiyouxidaili.br3h.com/uploads/1/3/0/7/130740124/130740124.html#pan+card+change+form+latest PDF link annotation
    • http://ryansjewelryshop.com/uploads/1/3/0/4/130477890/126884efc.pdfIn PDF document text
    • http://www.ahtiras-africa.com/uploads/1/3/0/6/130621649/615b9278e.pdfIn PDF document text
    • http://sunnyvalecoffee.com/uploads/1/3/0/7/130775489/8987078.pdfIn PDF document text
    • http://mta-sts.mx.discovermichiana.com/uploads/1/3/0/5/130588415/23271.pdfIn PDF document text
    • http://ideasinaday.com/uploads/1/3/0/6/130639790/gakupusidotuxex.pdfIn PDF document text
    • http://delighteddaughter.com/uploads/1/3/0/2/130289765/7045898d.pdfIn PDF document text
    • http://troyharman.com/uploads/1/3/0/6/130639630/5651fa284e78.pdfIn PDF document text
    • http://shuttcv.com/uploads/1/3/0/4/130477048/5823805.pdfIn PDF document text
    • http://justafirstdraft.com/uploads/1/3/0/2/130272095/7840170.pdfIn PDF document text
    • http://btravels.co.za/uploads/1/3/0/5/130539783/xezonunomi-tubofanurigusez-kasajevupo.pdfIn PDF document text
    • http://webdisk.loikitsoil.com/uploads/1/3/1/0/131071167/morokaluwa.pdfIn PDF document text
    • http://aurasalontn.com/uploads/1/3/0/3/130379357/dovad.pdfIn PDF document text
    • http://lizrudey.com/uploads/1/3/0/8/130814716/8967192.pdfIn PDF document text
    • http://germanaudiospecialties.com/uploads/1/3/0/5/130543569/31267025337b462.pdfIn PDF document text
    • http://www.roopagangopadhyay.com/uploads/1/3/0/2/130272247/zuxubanavobajajot.pdfIn PDF document text
    • http://allabouthomerecording.com/uploads/1/3/0/2/130271154/9500394.pdfIn PDF document text
    • http://hostmaster.astuteexercisephysiology.com.au/uploads/1/3/0/7/130739713/videxusivusegof-rovejavovimo-dobuzelavenol-zarozikol.pdfIn PDF document text
    • http://e-y-o-6.com/uploads/1/3/0/6/130621457/mepijinefipal.pdfIn PDF document text
    • http://emilydowlingfriedman.com/uploads/1/3/0/4/130483207/10207d443.pdfIn PDF document text
    • http://www.superbdave7771and1.com/uploads/1/3/0/4/130435941/9e55c6eadf.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_off00008fab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FAB 7828 bytes
SHA-256: 77a2a90644db449a03844b1e9650b8bba3c8a976f29cb50bfecd4d6a6f80af09

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