Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6c114748def9c32…

MALICIOUS

PDF

53.7 KB Created: 2020-08-15 06:01:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1f2291673ce5556787cb0cb87eb6212 SHA-1: dc4ce79fced9ef9f37b2201e0b6ed2a7bdb891c8 SHA-256: b6c114748def9c3281410e1d484b7ca745216aec4a4a0f2a363f538e6cf18541
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, but one critical link directs to 'ttraff.ru', a known malicious redirector. The document body, though heavily obfuscated, contains the same lure text and the malicious URL, indicating an attempt to trick users into visiting the redirector for potentially harmful content. No scripts were extracted, but the PDF structure itself is used for the malicious redirection.

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=chokher+bali+full+movie++kickass In PDF document text
    • http://files.apparelcolorwork.com/uploads/1/3/1/6/131606854/4683207.pdfIn PDF document text
    • http://files.judydunaway.com/uploads/1/3/0/8/130874120/ec12cf760b.pdfIn PDF document text
    • http://vedipu.scrapbookcreationsny.com/uploads/1/3/0/7/130775318/9a6a390433f.pdfIn PDF document text
    • http://files.inyfilmfest.com/uploads/1/3/1/4/131453605/91b5a6ccfa31.pdfIn PDF document text
    • http://files.pleasantlivingmagazine.com/uploads/1/3/0/7/130774990/8eb868aca3b8.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/1/0431/8684/7905/files/41686357682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8534/0580/files/36338396664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/project_plan_template_google_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5491/3950/files/battle_born_deluxe_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2067/1400/files/ielts_reading_practice_test_2020_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8998/3640/files/19867907996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0780/2518/files/86664546761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/2504/2329/files/employee_benefits_guide_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/nugelike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/certificat_de_cession_voiture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8786/9592/files/72307339095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1430/6466/files/the_f_formula_marni.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C78 5292 bytes
SHA-256: 0593d514a312197e9079291ed11d0593ad062e239563188786f49ae6a3505548
font_01_sfnt_off00007e53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E53 4764 bytes
SHA-256: cf2b3807f2e8a90711b871d2219bc9dd78390bf679e090af1fcdabdb1a7d8fd0
font_02_sfnt_off00008d4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D4F 10572 bytes
SHA-256: 27140b2eea6855e5d1b8cdfa133ff32d43e944d8839d564c6aa6560109fc2b29
font_03_sfnt_off0000b1c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1C7 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6