Malicious PDF — malware analysis report

Static analysis result for SHA-256 47dffc8c42686903…

MALICIOUS

PDF

40.6 KB Created: 2020-06-05 21:43:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 74ed6119266b8c6b1457ed480b1d9586 SHA-1: 4c9e650715488a959cd1a5cb8616d3b57b4da32a SHA-256: 47dffc8c42686903f96b055ede4095bb1292734d5b0353c545091337065c3008
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are hosted on newly created domains and appear to be part of a link farm. The document body text, though partially corrupted, suggests a lure related to torrent downloads. The primary heuristic indicates a PDF SEO link farm, suggesting the document's purpose is to redirect users to potentially malicious content hosted on these numerous external 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://census2030.org/uploads/1/3/1/3/131384121/131384121.html#pretty+ricky+late+night+special+torrent PDF link annotation
    • http://speedlimit33.com/uploads/1/3/0/6/130604027/1b4441539f.pdfIn PDF document text
    • http://cameronattee.com/uploads/1/3/2/3/132303061/75997f21d6c1.pdfIn PDF document text
    • http://mta-sts.fortdiscgolf.com/uploads/1/3/1/3/131380341/nozexulopo-basijikux-jisasilikokafi.pdfIn PDF document text
    • http://hostmaster.themarketingperson.co.uk/uploads/1/3/0/6/130639209/vubalurotuv-bezizivope.pdfIn PDF document text
    • http://happyhome.cleaning/uploads/1/3/1/4/131482907/lokokut.pdfIn PDF document text
    • http://irvinevacation.com/uploads/1/3/0/2/130287538/4483045.pdfIn PDF document text
    • http://amib19.com/uploads/1/3/0/6/130639513/2228460.pdfIn PDF document text
    • http://eurohub.ge/uploads/1/3/0/9/130969012/4b7e09b1360.pdfIn PDF document text
    • http://musicmastertraining.com/uploads/1/3/0/6/130603894/xugabapew.pdfIn PDF document text
    • http://ebikeakaroa.co/uploads/1/3/0/7/130776514/mosidepo.pdfIn PDF document text
    • http://hostmaster.exporttogroup.com/uploads/1/3/0/5/130543798/faragesegizebaxaje.pdfIn PDF document text
    • http://harvardofthewest.org/uploads/1/3/0/2/130289625/b0e243c2e5c.pdfIn PDF document text
    • http://mphcoatings.com/uploads/1/3/0/7/130776852/9118579.pdfIn PDF document text
    • http://census2030.org/uploads/1/3/1/3/131384121/terms.htmlIn PDF document text
    • http://census2030.org/uploads/1/3/1/3/131384121/dmca.htmlIn PDF document text
    • http://census2030.org/uploads/1/3/1/3/131384121/policy.htmlIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://remikusap.files.wordpress.com/2020/06/49590700922.pdfIn PDF document text
    • https://nogipekagi.files.wordpress.com/2020/06/fenotekin.pdfIn PDF document text
    • https://kesakede.files.wordpress.com/2020/06/67430060583.pdfIn PDF document text
    • https://kekazemigix.files.wordpress.com/2020/06/taruxitonatexub.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
    • http://scripts.sil.org/OFLIn 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_off00007145.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7145 10804 bytes
SHA-256: 454832e97951ca597624094574dc5070d2372def106ad496a8c5428a5e7c1300

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