Malicious PDF — malware analysis report

Static analysis result for SHA-256 5104338c6ab90201…

MALICIOUS

PDF

52.7 KB Created: 2020-08-10 10:45:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9051d6eca69a9407d2dce52c79c26abd SHA-1: 3364da9e9fe516e14cb3211dda82b273a71f79bb SHA-256: 5104338c6ab902019439cbd26f8f17d00bc3971c28a2368266f90a5e521f03e7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates an attempt to redirect the user to a malicious site. Additionally, a PDF link farm heuristic fired, suggesting the document is part of a larger SEO manipulation effort to distribute malicious links. The embedded URL in the document body, 'https://ttraff.com/pify?keyword=four+categories+of+application+software+pdf', directly supports this attack pattern.

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.com/pify?keyword=four+categories+of+application+software+pdf In PDF document text
    • http://files.dorchesterlions.com/uploads/1/3/0/8/130814785/badomirujobobazobuje.pdfIn PDF document text
    • http://files.luxbiteonline.com/uploads/1/3/1/4/131437932/zuzowegu.pdfIn PDF document text
    • http://files.perfectbreakcaravans.com/uploads/1/3/2/6/132681617/1422754.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/1/0429/8915/8554/files/rixowimonurini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8191/5802/files/how_to_install_games_cemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0213/3656/files/35268708877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2133/4690/files/2465173904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7094/6456/files/xozumiwunikamexofusofujex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/belujujogifawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2675/files/poe_maligaro_s_spike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/grade_12_biology_textbook_ethiopia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7082/5382/files/5th_grade_daily_math_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/troy_bilt_tiller_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9604/6752/files/lignocellulosic_biomass.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0843/2027/files/convert_to_word_online_gratuit_ocr.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3B 5372 bytes
SHA-256: fff184ff564ec576a77a0283f26537806ea4c194f444f2763f5801179c7ae217
font_01_sfnt_off0000a1a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1A8 10572 bytes
SHA-256: 5faf9d532595e5044280484fb9ebe13e5ba3b2d14af5d873eb390b19e7d99891