Malicious PDF — malware analysis report

Static analysis result for SHA-256 173f0274930517ae…

MALICIOUS

PDF

40.6 KB Created: 2020-08-12 07:37:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ccf47e005fbfc91b8731b1d740b9803 SHA-1: 929ea16fc00ef755a59582c8e06140a48f84f27d SHA-256: 173f0274930517ae2eb844ffd97c55c58286acb7e32829fb4752071c6c0e4162
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one to a known malicious redirector, suggesting a phishing or malware distribution attempt. The document body, though partially corrupted, contains the phrase 'Aeronautical charts pdf' and the malicious redirector URL, indicating a lure to entice users to click on malicious links. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://ttraff.cc/wb?keyword=aeronautical%20charts%20pdf In PDF document text
    • http://files.lylcdc.org/uploads/1/3/1/4/131453401/nedidusolonubul_soloxe.pdfIn PDF document text
    • http://files.hinkinhistory.com/uploads/1/3/2/6/132682124/3d53d7fa8db1.pdfIn PDF document text
    • http://sonumadu.nancyloewen.net/uploads/1/3/2/6/132681947/tepetedoranagemabivo.pdfIn PDF document text
    • http://files.charleysincorporation.com/uploads/1/3/0/9/130969211/2836086.pdfIn PDF document text
    • http://files.maureenriley.org/uploads/1/3/1/6/131607054/bunudimiwa-zojiba-ruxuk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8241/6281/files/wimegadomaxeposijiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5918/2745/files/the_jig_is_up_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1935/4791/files/24573292607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0167/5939/files/sales_skills_and_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17612659915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65233410578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8371/9071/files/etiology_of_diabetes_mellitus_type_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8620/8406/files/autocad_3d_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9007/6057/files/lefijopusujinanoguke.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 7

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_off00006214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6214 5232 bytes
SHA-256: 9fd637834d74346ab754c460d0d224cc4b1df4511dbcd8bb823b6cd6ef8b1b9a
font_01_sfnt_off000073d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D0 9852 bytes
SHA-256: a0c688085a38e10d88372d9c81e3105d56faa77909fffc887f0e8103f0d199a6

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