Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbf666b2f8886392…

MALICIOUS

PDF

42.0 KB Created: 2020-08-21 20:37:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63b446a6bafd800d8f5917aaee75028a SHA-1: ccce3c00ad9f1bd2271f0db1271a13e1984e9ae9 SHA-256: fbf666b2f88863921c88d199930c35e4d47e42dfd1a5eab195e87e9f4e4cbdcf
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 pointing to 'https://ttraff.com/pify?keyword=acrobat+reader+professional'. This URL is likely used to redirect the user to a malicious download or phishing page. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous other links, many hosted on Shopify, suggests a link farm used for SEO poisoning or to obscure the final malicious destination.

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=acrobat+reader+professional In PDF document text
    • http://files.tysonart.net/uploads/1/3/0/7/130775588/037531.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/1/0441/3263/0680/files/15519777546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9419/5870/files/jonemim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8073/5138/files/adiga_adiga_naa_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8219/4852/files/18741006614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2737/2955/files/lanelazewerotubewubewudol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6360/6437/files/types_of_probability_sampling_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0098/7801/files/3268329328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/92260528185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/1775/8888/files/job_application_template_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0854/0324/files/vakunejun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2882/4742/files/oxford_discover_student_book_1_free_download.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 2

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_off00006657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6657 5276 bytes
SHA-256: b6e0b990c6c0f203b57b95245d4a4b1aec9234c589c443188d4fabc0cb20901d
font_01_sfnt_off00007846.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7846 10312 bytes
SHA-256: 052f179d95b36aeb460fee3e0d557ab17898ea32154cb9bf11a650bc29a99c97

Open this report in the interactive analyzer, or submit your own file for analysis.