Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eb29ae405e52264…

MALICIOUS

PDF

41.9 KB Created: 2020-07-27 22:31:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 767efdead758cb4451c4eede8597952d SHA-1: 4850e871bc34ade652861020784038a6f487d205 SHA-256: 4eb29ae405e52264283e23647be09a4a70b357e715c849a8fa8e153c8f1c1c8c
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, suggests a theme of 'Autobiography books in tamil pdf'. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=autobiography+books+in+tamil+pdf', which is likely used to redirect users to further malicious content or phishing sites. The presence of a large number of external PDF links also indicates a link farm or SEO manipulation tactic.

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.cc/pify?keyword=autobiography+books+in+tamil+pdf In PDF document text
    • http://files.shannondrhodes.com/uploads/1/3/0/8/130873907/1944747.pdfIn PDF document text
    • http://files.graceanddiggs.com/uploads/1/3/1/0/131070799/9817102.pdfIn PDF document text
    • http://files.charlesjgruichmd.com/uploads/1/3/0/8/130814052/e7e0e41edf.pdfIn PDF document text
    • http://files.classylynnetravel.com/uploads/1/3/1/8/131857199/6913459.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/1/0437/7752/3861/files/suzubobuvaperelagizivuwef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0549/9801/files/vujonixivuromifanun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7408/5279/files/5534864703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rosetotirumeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1157/0838/files/32665212486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1005/6615/files/dumafasaxivapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/70939765524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1522/4996/files/dazezujariwotome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2742/9536/files/mimusiniri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1218/4474/files/garelavitogivijado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5863/3631/files/pozanutuzekinanizadogulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1175/1579/files/gebivaxivorajodudugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/86790221527.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_off0000664f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664F 5512 bytes
SHA-256: c87e6e92ad1d485795c436ec924b2ce29dfcc1cdca69edfa619341fd850b323e
font_01_sfnt_off000078d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D2 9824 bytes
SHA-256: 8811a2f24b8818d79f2d59ff555ad444eb0bbb67f450cc5f8445ad8ca6eb78cc

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