Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ce336b5b9940afa…

MALICIOUS

PDF

62.7 KB Created: 2020-08-21 14:09:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6bd407b07d19ab4fe09e17d1b53494a8 SHA-1: a80c833d0e162762eea2aa4304465bd8726fa7bd SHA-256: 6ce336b5b9940afabba9d3a2dce905dca8b0f7aa236372be59f5fdf5387382e6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document uses a lure related to 'Fallout 76 tadpole exam answers' to entice users. It contains numerous links, with a primary redirector URL pointing to `https://ttraff.ru/pify?keyword=fallout+76+tadpole+exam+answers`, indicating a phishing or malware distribution scheme. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious redirector and link farm.

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=fallout+76+tadpole+exam+answers In PDF document text
    • http://funorofaz.ripeta.com/uploads/1/3/0/9/130969627/zupagikaruzam.pdfIn PDF document text
    • http://files.grandlakesnowmobileclub.com/uploads/1/3/2/6/132695360/1622851.pdfIn PDF document text
    • http://luzar.gianatiempogallery.com/uploads/1/3/2/8/132814930/bazulo.pdfIn PDF document text
    • http://files.countrymeadows2.com/uploads/1/3/1/4/131438019/4362120.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/1/0437/9744/6816/files/bazaart_full_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/rejajiludidipupetab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/1229/5589/files/dosesekebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1531/5349/files/luxasisubivesexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/positional_vertigo_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gijamibumiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4852/6246/files/96363751355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6875/8943/files/85537200823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/lujigukimavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5180/0981/files/maloveg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6975/7850/files/37273601257.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 4

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_off0000b6de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6DE 5452 bytes
SHA-256: 7efd78277338297608ac0de24303387850e858a0993fb40424713cecf346c360
font_01_sfnt_off0000c96c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC96C 10552 bytes
SHA-256: e9ad09e91a8f845328f961b29169e41ae10464a88677c8daeb8cb669e6850237

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