Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d6fa6fca9311932…

MALICIOUS

PDF

41.1 KB Created: 2020-03-27 12:06:43 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-25
MD5: 3ab97fe39ee4c293710cb8618db77cf8 SHA-1: 82c7e487cacbfa9c3e6f2da33a795dc4bc377a39 SHA-256: 9d6fa6fca9311932284e202ad6af89bea03f3b88a95c8a860b5a74a7c221e7ff
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious content. The document body, though partially corrupted, suggests a lure related to 'weight training exercises for abs', which is likely a deceptive pretext to encourage clicks on the embedded URLs. The primary function appears to be acting as a link farm, directing users to numerous other PDF documents hosted on various domains.

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://mila-travels.net/uploads/1/3/1/3/131380265/131380265.html#weight+training+exercises+for+abs PDF link annotation
    • http://amayaconsulting.net/uploads/1/3/0/9/130969982/zidowi.pdfIn PDF document text
    • http://karinamarieescajeda.com/uploads/1/3/0/6/130621115/78edfabfa3fe766.pdfIn PDF document text
    • http://monicatunnell.com/uploads/1/3/0/5/130590215/3201917.pdfIn PDF document text
    • http://donjongamingtavern.com/uploads/1/3/0/5/130542894/6302675.pdfIn PDF document text
    • http://webmail.dsgtrustlaw.com/uploads/1/3/0/3/130380037/6075885.pdfIn PDF document text
    • http://bread.healmarketplace.com/uploads/1/3/0/6/130621325/17bde94f.pdfIn PDF document text
    • http://brandranker.com/uploads/1/3/0/5/130547884/gesuwizojowuzozopo.pdfIn PDF document text
    • http://distinctwealthmanagement.com/uploads/1/3/0/5/130538816/28e65106ed6f.pdfIn PDF document text
    • http://elforodelartista.com/uploads/1/3/0/9/130969597/39b4992.pdfIn PDF document text
    • http://www.alamojump.shop/uploads/1/3/0/5/130590336/528905.pdfIn PDF document text
    • http://terrasouthlandcare.com/uploads/1/3/1/0/131070560/fotun.pdfIn PDF document text
    • http://tor.money/uploads/1/3/0/7/130776639/goliponib_lidoxeb.pdfIn PDF document text
    • http://theelitecloser.com/uploads/1/3/0/4/130476873/8735359.pdfIn PDF document text
    • http://ocsfortbend.org/uploads/1/3/0/2/130272428/bf9effedd.pdfIn PDF document text
    • http://ramitarushi.wedding/uploads/1/3/0/3/130313564/gitarer.pdfIn PDF document text
    • http://mpnetwork.com.au/uploads/1/3/0/6/130604950/7638174.pdfIn PDF document text
    • http://www.info.wir-kaufen-garagen.de/uploads/1/3/0/3/130379523/pufegidazu.pdfIn PDF document text
    • http://hollywoodjerseys.com/uploads/1/3/0/6/130604314/1a2d88e6c5d5.pdfIn PDF document text
    • http://viaggiumanizzati.com/uploads/1/3/0/4/130488994/tisiwij.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 5

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_off0000760e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760E 8140 bytes
SHA-256: 1b64a5f2c1653f83da660e4dea84b25113cefdc4cbe7c526cc4b38c874c071da

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