Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae49685a17db82d0…

MALICIOUS

PDF

124.2 KB Created: 2020-08-11 07:07:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ee3ee42ad4c4283c9b9214ed916fe8c SHA-1: efca102a212333b2bef4b2286b622941d67f36cb SHA-256: ae49685a17db82d02736316089d953b973f7a4ce763a463876fd0556c7164683
202 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.cc, which is likely intended to lead the user to a malicious payload. The document also contains a large number of external PDF links, suggesting a link farm for SEO poisoning or to obscure the final destination. The presence of a 'download button' lure further supports the malicious intent.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=social+anxiety+disorder+assessment+pdf In PDF document text
    • http://files.christophernewhook.studio/uploads/1/3/1/4/131483955/f93166c19d67.pdfIn PDF document text
    • http://fatojiwa.525pathfinder.com/uploads/1/3/2/7/132741334/pijak.pdfIn PDF document text
    • http://files.woodland50pta.com/uploads/1/3/0/7/130775905/tezenezakodaxul.pdfIn PDF document text
    • http://soseb.denaultcommercial.com/uploads/1/3/0/7/130776483/91173ffce9fc3fc.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/1/0432/7243/7910/files/vukasanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/16062925129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/5532/2012/files/22601656367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0970/9976/files/zumefubipiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6874/4099/files/nelubotigadax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8799/0688/files/35089103134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3034/2806/files/calendario_escolar_asturias_2020_a_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/37278413385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7451/8180/files/14218488145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6999/7207/files/8277677672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doworefobose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6392/6174/files/75136372251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6312/9765/files/27719895260.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 5

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_off0001a02e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A02E 5572 bytes
SHA-256: f8dd9c1eaff8c6fc2f02a7cf12a35e4de47633b672b947e111ce847c0dbe8ec0
font_01_sfnt_off0001b30d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B30D 15204 bytes
SHA-256: fd1ffe1f8e756ecbe965cda9d2461066536fbe6b10cfb01b0f1a8531f5a4424b

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