Malicious PDF — malware analysis report

Static analysis result for SHA-256 6efff950c6400bdf…

MALICIOUS

PDF

44.9 KB Created: 2020-08-22 14:47:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3ff547f620c189af5f6b4d52c054841c SHA-1: f86b712c3fc95a20b029f24cd0d64133dd77c26a SHA-256: 6efff950c6400bdfa309cad4088d42c902e84b5305bd9778b3407102d5579e7b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service that ultimately leads to the URL 'https://ttraff.ru/pify?keyword=betflag+poker+apk'. This suggests a phishing or scam attempt, likely to trick users into downloading malware or visiting a malicious site. The ML classifier strongly supports the malicious verdict.

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=betflag+poker+apk In PDF document text
    • http://files.g7evenphotography.com/uploads/1/3/0/8/130814258/jivuxupaxusulan-girakajefuzopet-lulojukegik.pdfIn PDF document text
    • http://jefuzuz.midlandsmortgages.co.uk/uploads/1/3/1/6/131606758/petasoputefom.pdfIn PDF document text
    • http://leragidex.sheldonoil.com/uploads/1/3/1/3/131383657/3461612.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/1/0428/9835/8432/files/pelezegagujagemubejapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/73_dodge_challenger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8450/5498/files/nusokosuvonilet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6202/5624/files/3426395403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5670/0319/files/constructivism_in_mathematics_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vejut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/ronawawoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3294/2504/files/box_cars_and_one_eyed_jacks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0505/1029/files/76654269857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/33111059543.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CBE 5004 bytes
SHA-256: 5acf26a927d94636226099cd0c9b6080cc34de0bb1604f419f4beb2d786915ec
font_01_sfnt_off00006dd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD9 10640 bytes
SHA-256: a98d5662e3e20c85933878ae9202358b8f8e801cb63caf6dbf74acebf3cb5f7d
font_02_sfnt_off0000926b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x926B 16036 bytes
SHA-256: 52db30b66cfb76898988bc7c6ed152514c301740808ab95bec9c68e49df23550

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