Malicious PDF — malware analysis report

Static analysis result for SHA-256 11602c6232b29ca2…

MALICIOUS

PDF

46.1 KB Created: 2020-08-21 00:55:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d3e917659b72b3cb626763703f1b324d SHA-1: 2558694157ea3799f4ae8b997d81d6113cc672d3 SHA-256: 11602c6232b29ca23c84901b4302e55c9da2d0cb6f71842302f16ab770e5aa1c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, including one that redirects to a known malicious domain (ttraff.com) via a 'pify' redirector. This redirector is associated with SEO link farms and is likely used to obscure the final malicious destination. The document body text, though partially corrupted, suggests a lure related to 'worksheet answers', indicating a phishing or scam attempt.

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=4-+1+congruent+figures+worksheet+answers In PDF document text
    • http://files.ohltownumc.com/uploads/1/3/1/4/131438427/5590336.pdfIn PDF document text
    • http://files.dancewellny.com/uploads/1/3/1/4/131437775/zopubusapo.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/1/0431/9599/0175/files/2493703944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5158/1597/files/14151658582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9946/2558/files/alternator_working_principle_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7746/7288/files/french_to_english_words_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0722/7542/files/baby_pictures_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/38599610542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/wufesuponakuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9416/3109/files/sample_scholarship_application_letter_for_masters_degree.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4914/8828/files/bagufudag.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

Related samples 3

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_off00006649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6649 2988 bytes
SHA-256: 77d084f575d2196501648ce2f606eaa66c04bd32cb2d6351ff0e9600769c08a6
font_01_sfnt_off000070e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E5 5344 bytes
SHA-256: dc0996e73fe614c49279f0921f6755697a7222f0c1ce4eb2145c7adfc5367ff5
font_02_sfnt_off0000832e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x832E 11836 bytes
SHA-256: f1b19328723125c483eb7f1a5a4b0a375561fd9a545e39c3f451950c0e261afe

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