Malicious PDF — malware analysis report

Static analysis result for SHA-256 847fefc225811180…

MALICIOUS

PDF

44.3 KB Created: 2020-08-15 07:34:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63699003adc159502e60d82b5b3f9502 SHA-1: 5ad9b8c766d9db28d4d5cdb691c423f7c3952bc7 SHA-256: 847fefc225811180ed4aa6296976b83bbe70753869b33ecae3048cd42cf16f31
222 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains URLs that appear to be part of a link farm designed to attract users with search terms like 'bakery business plan nigeria pdf'. The presence of a download button lure and the overall structure strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bakery+business+plan+nigeria+pdf In PDF document text
    • http://files.christianfellowshipind.org/uploads/1/3/2/3/132303382/b250c55a7f3.pdfIn PDF document text
    • http://vuzokute.gryffemusic.com/uploads/1/3/1/3/131398455/pemuna.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/1/0433/0127/3758/files/wowovag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9760/files/pakeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9029/7503/files/gulunexodepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4727/2098/files/worksheet_english_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5769/2315/files/18796906384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/80323265034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/99573550762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/kawobukujegunapatanasob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9488/2984/files/860370203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3351/8489/files/solving_quadratic_equations_bingo.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 1

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_off00006e43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E43 5564 bytes
SHA-256: b70852a5f9cd06d960f63cc585f1ea3db528541d08ad139c67c6010176e1adbb
font_01_sfnt_off0000814a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x814A 10400 bytes
SHA-256: b702cacc18a487e2ca507dccede3397c128f47a348e09cd2bc45839192c69191

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