Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc1b46b07137e870…

MALICIOUS

PDF

46.1 KB Created: 2020-08-14 15:01:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eebbd07f3f56ec9b5741a6c90450db2b SHA-1: d6cc8b09fe800ba06293fc5a17379d3652d606ab SHA-256: fc1b46b07137e8705c3327b6ce8d1fbc2074b35c817bca8faec100bf674a28e1
202 Risk Score

Malware Insights

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

The PDF document attempts to lure the user with the promise of free book design templates. It contains a large number of embedded links, with one identified as a redirector to known malicious infrastructure. The document body itself is heavily obfuscated and contains the malicious redirector URL and numerous benign-looking Shopify URLs, likely part of a link farm to improve search engine ranking for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=free+book+design+templates+for+word In PDF document text
    • http://naboloti.tangoyoung.com/uploads/1/3/1/3/131383332/eeb7ed6041a.pdfIn PDF document text
    • http://files.lockmangenetics.com/uploads/1/3/0/7/130740260/6378717.pdfIn PDF document text
    • http://files.chirho.consulting/uploads/1/3/1/1/131164157/7232353.pdfIn PDF document text
    • http://files.scentsationalpamperingaccessories.com/uploads/1/3/0/7/130776489/bupepegopaju-bakokogusezebuz.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/1/0437/3220/5722/files/jenibar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/7002/files/sominijobiwupolulis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7526/4919/files/jitidonanelavusopuvog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4291/2926/files/alagappan_clinical_medicine_6th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/zezok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7789/2264/files/bestimmter_unbestimmter_artikel_daf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4710/5191/files/chemical_reaction_engineering_levenspiel_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/gogit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3531/9711/files/78265993259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9537/5524/files/98335244825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3302/4929/files/how_to_backup_notes_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3681/files/fozosudasupowimibidabuk.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_off00007524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7524 5612 bytes
SHA-256: 35fa6cc68d5b6a03879f3fb06061bd8845452f79705762ff1979c648419835bb
font_01_sfnt_off00008834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8834 10260 bytes
SHA-256: 5fc11131357f33c926f6aad2a3cc0bcd321a8df149b127221c3d8104666d6dfd