Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ab282a9683daae6…

MALICIOUS

PDF

43.3 KB Created: 2020-08-21 07:50:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42923a182dd514c41c291c7b9c7a9eca SHA-1: 9c8bc87e7432fb26d77dbf61f86581cb75374f06 SHA-256: 6ab282a9683daae69920c7b3136ecb0236ff6b266e5ee243224ea1d5a4b1a867
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service ('ttraff.cc') identified as malicious. The document body, though heavily obfuscated, includes text suggesting a lure for an 'Indesign diary template 2019', indicating a phishing or scam attempt. The presence of a malicious redirector and a link farm strongly suggests the intent to lead users to harmful content.

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.cc/pify?keyword=indesign+diary+template+2019 In PDF document text
    • http://buvofuz.judithmary.com/uploads/1/3/1/1/131164250/9997890.pdfIn PDF document text
    • http://files.teamstudy.org/uploads/1/3/0/7/130739766/9efe88847d7f.pdfIn PDF document text
    • http://files.shearserenitysalon.com/uploads/1/3/1/3/131383553/53b9878d6b0f11.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/1/0438/9486/6088/files/87710511387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/kapurutelewimurisegetiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7570/6788/files/datun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4892/files/20918375121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1355/3827/files/70665439540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5082/files/argandoa_macroeconomia_avanzada_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4487/2090/files/teaching_business_english_lesson_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6621/2003/files/pofiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2562/8316/files/service_host_sysmain.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1945/2063/files/kamula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6970/9217/files/sebunorumuwusiwunazidu.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_off00005f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F33 5800 bytes
SHA-256: fafa4b298f46c37e36012f648166821a36072d940ab6bfa5710cd38ca1def13b
font_01_sfnt_off000072dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72DD 14468 bytes
SHA-256: f6f1294be3d63b718e4a6eee761e806c045889505d97e69218a72f1dfaed1acf