Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cf2db0304c5cb83…

MALICIOUS

PDF

70.7 KB Created: 2020-08-05 18:08:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81a2396cdf65c3fbf5affc74cf67b555 SHA-1: 3698486ee7e7faf2da41ddc7df6efb2e8fc7ee95 SHA-256: 3cf2db0304c5cb83b9a18d6f6b29004107b0da367abc56aa1dcfb36272020b1d
194 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, with the primary malicious redirector being ttraff.ru. This suggests a phishing or SEO poisoning campaign designed to drive traffic to malicious sites. The document body contains obfuscated text and embedded URLs, indicating an attempt to disguise the malicious intent. No scripts were extracted from this sample.

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=java+swing+notes+pdf In PDF document text
    • http://files.watertheessential.com/uploads/1/3/0/7/130776077/wimaze-senarobipi.pdfIn PDF document text
    • http://sanamefir.linetweaker.com/uploads/1/3/1/4/131407233/5693490.pdfIn PDF document text
    • http://files.bakerlawga.com/uploads/1/3/0/7/130775704/5316049.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/1/0432/7420/7387/files/39240426744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4374/1083/files/8571390963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78682713185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1419/3311/files/nekabimozejep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5042/5750/files/30155526088.pdfIn PDF document text
    • http://files.tpak.people.ua.edu/uploads/1/3/1/0/131070934/8709670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0167/5939/files/kegarorojexatipesag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5364/4966/files/nevefaxofopike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2117/1873/files/xexazirabawofivivase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/totavari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1911/6449/files/wudanenekobabidulekig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7950/6847/files/mejoxulutikupagewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2152/3349/files/lepokirodaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/75070076395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/lerimisidatarevexagawi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8BE 5224 bytes
SHA-256: 9e52474e00bd813133ee5f37abcfeedf4aa0f5966755b0ca42911abd692793d5
font_01_sfnt_off0000eabb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEABB 10212 bytes
SHA-256: 023448d97d2f1ef5952066e1cb61f945e3220fabe9a9be6a7de25973ff146df6

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