Malicious PDF — malware analysis report

Static analysis result for SHA-256 afda7dd3d2ed2ffa…

MALICIOUS

PDF

41.8 KB Created: 2020-09-01 11:07:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b72952e26a5cec8d54ab1bbcc685e34c SHA-1: 72e3742cccd6c9125850e7126bf084729d763117 SHA-256: afda7dd3d2ed2ffa28e9897a6622385cd6c06de77b9a3b70d39a1595058c276a
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a critical heuristic indicating it links to known malicious redirector infrastructure. Additionally, it contains a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is https://ttraff.me/wix?keyword=food+webs+and+energy+pyramids+worksheets, which is likely used to redirect users to further malicious content.

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.me/wix?keyword=food+webs+and+energy+pyramids+worksheets In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b52961_b4b4e684e967440381e24268d458f044.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f1d680_fc8ae23931f74e15b3878f656b865486.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b91566_a66838f0013b415e83c4f164ba9bd329.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/97aff7_116f7fbfa9c64dfe8dc6b1df7053a699.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/fd7405_a1d288d355c94386a51a849252c620b7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e3ff21_230780fbd13a47c1a85d2cf070abb3c7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a382ee_af8b6ea3e8784f7c8cf52761d333046d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_e7273b7c71ec4c0b95ebea59f1d08325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5903401900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6278/0311/files/pijinuzusutuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8924/8924/files/saint_seiya_awakening_elite_train_hall_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0469/9635/7272/files/shareholders_agreement_template_free_uk.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ea2f88_96d922dd885845f8967726b6d02357c5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4117a9_4ba1ef7fb33042e19da013cbffb0b037.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6290de_a363a4c54d7541c28c1045e13edbe3df.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_e2f97d989bce4ff79a7d7a2b7692f33d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/599026_9d7440906233495c820cc6df752ac962.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_off0000632b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x632B 5696 bytes
SHA-256: c1bd68ea6f59659bd019045dfabbdc2c2b857bab9e7da42b8aff260b01610cae
font_01_sfnt_off0000767c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x767C 10532 bytes
SHA-256: f253be5d5b6252f65ac71b42821fb48226242f19cdeb2e554545bbfd430cbc11

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