Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ceec4b3016cb74f…

MALICIOUS

PDF

51.0 KB Created: 2020-08-22 05:01:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b6f77c188ea48d9805186a52e2783eb8 SHA-1: 5473e1128620b2282fad0583f68ff5922195654a SHA-256: 7ceec4b3016cb74f79d3db8584cf1896912c58b7bffbf2cbe1fdb091b29abd7a
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 (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL. This indicates a phishing or malware distribution attempt using a link farm strategy to obscure the final malicious destination. No scripts were extracted, but the presence of malicious redirector links and the ML classifier output strongly suggest malicious intent.

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=action+sheet+ionic+1 In PDF document text
    • http://vaxajun.trulymedium.com/uploads/1/3/2/3/132302921/7325384.pdfIn PDF document text
    • http://files.becican.com/uploads/1/3/1/0/131070212/tadoliluvibu_tovefomiral_tikeladodi.pdfIn PDF document text
    • http://files.chillnbeans.com/uploads/1/3/1/1/131164152/tirowujuja.pdfIn PDF document text
    • http://kogowuxo.oliviacliftonbligh.com/uploads/1/3/2/8/132814930/satenojov-sofigo-rivavu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3217/2965/files/10342239276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6202/5624/files/leg_strengthening_exercises_for_seniors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8565/8280/files/11975026822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/schopenhauer_world_as_will_and_idea.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6371/3695/files/34580670407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/8101/0071/files/conduction_convection_radiation_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3908/8027/files/puxajulefinevudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7170/0120/files/pikogakenawiverifinunim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7305/0526/files/cancionero_guitarra_argentina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94215193789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8770/6777/files/71648937336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0067/6001/files/marriott_friends_and_family_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4760/0796/files/85377265027.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7124 4380 bytes
SHA-256: 739462b287782b590d733218bb3972a0d196b7c47b2776d20298e06123818022
font_01_sfnt_off00007ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF6 15640 bytes
SHA-256: 929c09f0f63c89623bbe0a26378d9a26fd6d49e688fbbbe440d71241d7c6c5c4
font_02_sfnt_off0000b119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB119 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3