Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfeced4f3ece56a9…

MALICIOUS

PDF

46.6 KB Created: 2020-08-06 20:28:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7938e4a5b45a26e6ce93f56b720ccae1 SHA-1: 3ce661270f25019159cdb99da3d039047eb9d8dd SHA-256: dfeced4f3ece56a9cb04a6f8fc1c1547f44cad2003f6d52e7038cfe14e038b20
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a coupon offer, aiming to trick users into clicking it. The document body and embedded link structure suggest a phishing attempt to drive traffic to a malicious URL. The presence of a link farm further indicates an effort to manipulate search engine results or distribute malicious content broadly.

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=mcdonalds+coupons+2020+pdf+april In PDF document text
    • http://bitel.troop457sunnyvale.com/uploads/1/3/2/3/132303238/6b3a7da3de25.pdfIn PDF document text
    • http://files.themagpiesmusic.com/uploads/1/3/0/9/130969689/movisuzagilep.pdfIn PDF document text
    • http://zepegun.ksrotary.org/uploads/1/3/1/4/131407155/3640435.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/1/0431/4388/9058/files/78289416382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8176/8864/files/toluzagulitag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7796/7778/files/pemotilapafogozadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1425/0919/files/29783579991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0808/9499/files/zujibutudatenodufusiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3757/9674/files/nelegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9452/4579/files/sibazewawaderixig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/51901594678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9275/3049/files/fodefelirejozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6212/4959/files/vazexekogivutax.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 1

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007706.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7706 5428 bytes
SHA-256: 9043b344a2999e1e5c59b5a968659b94c686be4cd00fffaf1df9930023fd1b83
font_01_sfnt_off00008998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8998 10620 bytes
SHA-256: efd1b3f0da6cc302543d9063e08c8e52e3f21768d6574dac3a52ebea5b9f42c2

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