Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e5e9694aadfd0d4…

MALICIOUS

PDF

54.5 KB Created: 2020-08-19 13:28:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 888b2c8854527f6d4447cf0ead30261c SHA-1: 83d16b78ba88874289547a4567264cf0752c4911 SHA-256: 3e5e9694aadfd0d42698874b207adaae948ae8415fb04bcc8191328d4541c839
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of external links, a technique often used to create link farms for SEO manipulation or to distribute malicious content. One of the embedded URLs, 'https://ttraff.ru/pify?keyword=palayathu+amman+tamil+audio+songs+free', is flagged as a malicious redirector. The document body appears to be heavily obfuscated or corrupted, but the presence of the malicious redirector and the link farm heuristic strongly suggest a malicious intent, likely to lure users to a compromised site.

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=palayathu+amman+tamil+audio+songs+free In PDF document text
    • http://files.httigers.com/uploads/1/3/2/6/132695828/labepume-mazoje-gedesavini-kipatabuzuj.pdfIn PDF document text
    • http://pomav.thepeterboroughparkwayclubs.co.uk/uploads/1/3/2/7/132740285/sepodinapipiwinifi.pdfIn PDF document text
    • http://bekul.compoundincome.org/uploads/1/3/1/4/131482975/nalil.pdfIn PDF document text
    • http://files.dinah-parums.com/uploads/1/3/2/8/132814415/82fb09af.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/1/0431/5529/2317/files/xipebanawekukafox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3202/6008/files/61679672739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5380/0859/files/76731961745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7275/6648/files/difference_between_array_and_arraylist_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1862/2875/files/dharma_kshetram_telugu_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3604/9571/files/guitar_chords_beginner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7511/6961/files/27064355110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3144/5149/files/conceptual_physics_fundamentals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7193/8453/files/jegetobaxajepepoweg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5350/4917/files/expert_infantry_badge_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5892/1621/files/32831686867.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_off000090a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90A3 5424 bytes
SHA-256: 6a23b11eae899f1cbdb00b75e5661c6bb30c792c805160d060780b8654959381
font_01_sfnt_off0000a2f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2F6 13144 bytes
SHA-256: d7a8e448ceaacbb7f86f2f1aa1bdc8bf455390b4210db8b8584f65737239a284

Open this report in the interactive analyzer, or submit your own file for analysis.