Malicious PDF — malware analysis report

Static analysis result for SHA-256 d299a613956e2c0d…

MALICIOUS

PDF

47.3 KB Created: 2020-08-19 01:24:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 33e90045546aa2086d7d20231b832a57 SHA-1: 4238b38c2bfd7b8dccde87d60f19e2daeb98eb75 SHA-256: d299a613956e2c0d881e1dec1db080020652463f90855c70f0a959c88d4573d4
202 Risk Score

Malware Insights

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

The PDF was flagged for containing a malicious redirector link pointing to 'ttraff.com' and a link farm with numerous PDFs hosted on 'cdn.shopify.com'. The presence of a redirector suggests an attempt to obscure the final malicious destination, likely a phishing page or a malware download site. The document body, though heavily obfuscated, contains keywords related to academic answers, potentially serving as a lure.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=cengage+webassign+math+answers In PDF document text
    • http://files.seoulvibephangan.com/uploads/1/3/1/0/131071166/divadofi.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/1/0452/7502/1474/files/best_auto_repair_manuals_reviews.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9903/6573/files/21042933877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/51520212300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/abortus_spontan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/jivafopomiziveraz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0691/0876/files/visits_to_the_blessed_sacrament_alphonsus_liguori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8745/2576/files/belafig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9286/0327/files/35398831410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/37929988604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7919/1966/files/89440906994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0498/files/adenoiditis_en_pediatria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojedeteremedadedarovir.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 4

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_off0000785e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x785E 5204 bytes
SHA-256: c37b6e5b9d890f3f62f388f44889d2c765f0efac03b7892332bf3b39b3f62031
font_01_sfnt_off000089f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F6 11476 bytes
SHA-256: e0e5cae7b96e1361ec292b0f026432412d127e8d1692beacb0cd165f78906bc9

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