Malicious PDF — malware analysis report

Static analysis result for SHA-256 f56ba4292d09e255…

MALICIOUS

PDF

42.2 KB Created: 2020-03-21 16:50:43 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 502b62f80a972ff8cda49bfc120d6ed2 SHA-1: 17a8e530799610d0592b7e769f586226e66c43bc SHA-256: f56ba4292d09e255452b0ff846f1d26b21088158db47307d8a61d4b507a5bc6e
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which appear to be part of an SEO link farm. The document body, though partially corrupted, contains references to URLs such as 'http://nauticalglow.com/uploads/1/3/0/7/130738902/130738902.html#escala+de+habilidades+sociales+de+elena+gismero+gonz%C3%A1lez' and 'http://moniquepaintings.com/uploads/1/3/0/6/130620709/zanimeke.pdf'. This indicates a likely attempt to drive traffic to potentially malicious or spam-related websites, leveraging the document's structure for deceptive purposes.

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://nauticalglow.com/uploads/1/3/0/7/130738902/130738902.html#escala+de+habilidades+sociales+de+elena+gismero+gonz%C3%A1lez PDF link annotation
    • http://moniquepaintings.com/uploads/1/3/0/6/130620709/zanimeke.pdfIn PDF document text
    • http://www.myfuneralmatters.co.uk/uploads/1/3/0/9/130969504/c1a2d0f6f.pdfIn PDF document text
    • http://www.newtemployment.co.uk/uploads/1/3/1/0/131070883/d5dbfa54e864cd5.pdfIn PDF document text
    • http://aceswoodworks.com/uploads/1/3/0/8/130813117/d629950c0212.pdfIn PDF document text
    • http://www.ppsid.com/uploads/1/3/0/4/130477363/1319817.pdfIn PDF document text
    • http://northforkyoga.com/uploads/1/3/0/2/130271031/7127094.pdfIn PDF document text
    • http://insurancewebsitedesign.net/uploads/1/3/0/5/130540219/3476853.pdfIn PDF document text
    • http://joaandjames.love/uploads/1/3/0/5/130551266/vakebebise.pdfIn PDF document text
    • http://morrisboydphotography.com/uploads/1/3/0/5/130539518/3930440.pdfIn PDF document text
    • http://simplicitypei.com/uploads/1/3/0/5/130542907/1974356.pdfIn PDF document text
    • http://rebeccalaplacaattia.com/uploads/1/3/0/5/130551864/wuvopeleboru.pdfIn PDF document text
    • http://purenutco.org/uploads/1/3/0/5/130590338/xuwobimugiwosug.pdfIn PDF document text
    • http://tafski.org/uploads/1/3/0/7/130740513/5506730.pdfIn PDF document text
    • http://brisbanebirthing.com/uploads/1/3/0/2/130274349/guzanubixi.pdfIn PDF document text
    • http://monuem.org/uploads/1/3/0/5/130538840/kofeb-kotapeko-kijawisokela.pdfIn PDF document text
    • http://emmkservices.com/uploads/1/3/0/5/130589049/313e24ee843e.pdfIn PDF document text
    • http://natedhill.com/uploads/1/3/0/5/130588830/ebf6fefc9e4f.pdfIn PDF document text
    • http://mta-sts.estellessweetitchblankets.com/uploads/1/3/0/2/130270958/1593653.pdfIn PDF document text
    • http://pitkulup.net/uploads/1/3/0/7/130776599/6251054.pdfIn PDF document text
    • http://obedientwarrior.com/uploads/1/3/0/7/130776159/tinuz.pdfIn PDF document text
    • http://hostmaster.citrap.ch/uploads/1/3/0/6/130639034/vuvejelisozukiwakabi.pdfIn PDF document text
    • http://alexandrajosutton.com/uploads/1/3/0/6/130604238/4d006d65a2d5.pdfIn PDF document text
    • http://longdistancevoter.net/uploads/1/3/0/2/130271128/1493852.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 3

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_off0000781a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x781A 8772 bytes
SHA-256: d2481a344765d2273faed9d36982ed795228dda0df86e5b1490c692113aa1f94

Open this report in the interactive analyzer, or submit your own file for analysis.