Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaf47935dad32bf8…

MALICIOUS

PDF

40.8 KB Created: 2020-08-20 05:26:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: acacb25f00979fb3b98f031ac160df44 SHA-1: 4cd47b6f45614a86e8a3c53abdc58f9ce6a03ea0 SHA-256: aaf47935dad32bf85daf07a09b4ca9b958e9b2f5061e231ca0e6739491eded27
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for users seeking email writing formats. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility.

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=email+writing+format+for+leave In PDF document text
    • http://files.positivelyobedientcanines.com/uploads/1/3/2/3/132302764/f81fded48c90c91.pdfIn PDF document text
    • http://files.studio-lady.com/uploads/1/3/2/6/132682039/8601303.pdfIn PDF document text
    • http://files.sharing-international.org/uploads/1/3/2/6/132682040/6452909.pdfIn PDF document text
    • http://pekulowe.suehuitt.com/uploads/1/3/0/7/130776279/gadosazita.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/1/0428/4969/7959/files/kemupigelowoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/kojogesejebevimimixen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4986/0765/files/37642357351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dekafarisajanitid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3082/2555/files/lubadopisutekuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9069/6597/files/minecraft_pe_skyblock_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3923/4967/files/pomusofulemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5932/2773/files/zulez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/woxaxiriso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7291/3557/files/html_format_to.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 8

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_off000062b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B5 5020 bytes
SHA-256: dff555cbef9400feba7ae11bb882f79714f77a035140a81bbaf511971dbc393e
font_01_sfnt_off000073cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CB 10240 bytes
SHA-256: 5408afc84c738ec3f161d3eb057ff23f7f2542f45b6bceb8eab60d6870f53ec8

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