Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc32d2500532fa02…

MALICIOUS

PDF

37.0 KB Created: 2020-08-18 13:20:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bfd1f551ad10d890c7c3a873095b5d52 SHA-1: 90054ffdb2b036bddf987bb5b7995910f2812814 SHA-256: dc32d2500532fa021819d7f599bf2d79d4858c61e9128df7693e8c2889324d05
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to 'https://ttraff.cc/pify?keyword=pico+alphabet+font+free', suggesting a lure for free content that redirects to malicious infrastructure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm or SEO poisoning attempt to distribute malicious 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=pico+alphabet+font+free In PDF document text
    • http://files.introrobertburns.com/uploads/1/3/0/8/130874055/jotopiwuj.pdfIn PDF document text
    • http://files.fbcmprek.com/uploads/1/3/0/7/130739202/reparaz.pdfIn PDF document text
    • http://files.psychocare.org/uploads/1/3/1/4/131453982/xusozigik.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/1/0433/3436/9438/files/paradise_lost_book_1_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/pilavesogomovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4890/2557/files/kaxumeferiwenanobuvep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9085/3534/files/coriolis_flow_meter_principle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3088/6053/files/bluestacks_3_for_laptop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4070/9527/files/magic_chef_oven_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2516/8544/files/handwriting_without_tears_lined_paper_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/apprendre_l_italien_livre.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000040da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40DA 5068 bytes
SHA-256: 783811b2ef43b5402358d31c38a638cd08d169e493e22b170d1f4cbbe2cde567
font_01_sfnt_off00005202.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5202 9416 bytes
SHA-256: 13df720c72135e7e45596fc45f80ad4d82b31de6ff318a1f73cbfdf6587253f2
font_02_sfnt_off00007284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7284 16084 bytes
SHA-256: e8051d68498e63029d7c34361d406bcd46815681d18da0e8952f0660ee027cca

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