Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2d302c0fa02c677…

MALICIOUS

PDF

47.7 KB Created: 2020-07-31 03:30:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 790a183497b5c39391d90e30e6ff2750 SHA-1: 448846ee3a57520e413539883fe7c4f5c2d03183 SHA-256: d2d302c0fa02c6774be7f1851578cf37350aa9545dc8ec8c876e7d9899869bfe
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous links, including one pointing to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, suggests a lure related to 'adverbs of frequency pdf explanation'. The presence of a link farm and a redirector indicates an attempt to drive traffic to malicious infrastructure, likely for further exploitation or phishing. The file was generated by wkhtmltopdf, a tool often abused for creating malicious documents.

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.ru/pify?keyword=adverbs+of+frequency+pdf+explanation In PDF document text
    • http://files.allykeast.com/uploads/1/3/0/7/130775653/kukebobegavudu_lanekog.pdfIn PDF document text
    • http://files.educateteachers.org/uploads/1/3/0/7/130776077/074e4d324.pdfIn PDF document text
    • http://files.sfpediatricdentistry.com/uploads/1/3/0/7/130738928/faxav.pdfIn PDF document text
    • http://files.fpcounseling.org/uploads/1/3/0/8/130874627/pefogezen_lurodaf_xemedu.pdfIn PDF document text
    • http://files.mauiskydiving.info/uploads/1/3/2/6/132695301/seguremobukipob.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/1/0433/8037/5708/files/68791038113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6138/7170/files/82176564371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5963/4591/files/dodiwimixevewuxusaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5286/7494/files/dujurebetewedobavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8634/8450/files/26613749798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/kovupofozasekutizuwediten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0428/9439/files/72921620839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/79265304831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1841/1417/files/nuxijupuxogujagurefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1103/9655/files/kagekiziradadakemiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/90221325465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2990/2998/files/sizakapivenolekovenu.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 5

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_off000074ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74AE 5516 bytes
SHA-256: b299b83cfe5eb5a327c70fb6e26619b5b2afc164f0f911a4ac460209bcc0d03b
font_01_sfnt_off00008780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8780 13164 bytes
SHA-256: bd93c0f407787369a553bdf7f1a4b1ab5ed98702a9a027bd6e4d0238c4e1327f

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