Malicious PDF — malware analysis report

Static analysis result for SHA-256 efaa33d56a3ab8aa…

MALICIOUS

PDF

46.0 KB Created: 2020-08-07 23:25:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46d836144041d06f25b4436e8a6a425f SHA-1: ed4c0f6dad9d2970764cc15dec5792e9ad59cb3b SHA-256: efaa33d56a3ab8aa3ae34548e39dc421a4d022e155c940b7efc5dea290613bef
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This indicates the document's primary purpose is to redirect users to malicious sites. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting a broader campaign to distribute malicious content. The document body, though partially corrupted, contains text related to 'functional report of sebi aims and objectives pdf' and the wkhtmltopdf tool, likely serving as a lure.

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=functional+report+of+sebi+aims+and+objectives+pdf In PDF document text
    • http://files.birchsage.com/uploads/1/3/0/7/130775565/d4626e173e2.pdfIn PDF document text
    • http://files.claireallegrataylor.com/uploads/1/3/1/8/131872087/kuvuj_xekal_bizupox.pdfIn PDF document text
    • http://files.sarahconstable.com/uploads/1/3/1/8/131856877/af7f4a1b87711b.pdfIn PDF document text
    • http://files.poseidonsporthorses.com/uploads/1/3/0/7/130740442/zezufinifemizaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40133843423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8748/5342/files/narepok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0993/2439/files/bexatisuxajozekogeviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6141/9927/files/d_d_5e_playable_races.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1920/5789/files/da_form_5704_r.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9050/2042/files/67941930444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2009/7448/files/95435969034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/60130471010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/80811338498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3088/8094/files/31442061248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7335/5419/files/60417704460.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66C0 5412 bytes
SHA-256: cf21dcedb838194c7a614dc4533ecb2ed3907eefed87ac1deaedae0ecc6d5424
font_01_sfnt_off0000790f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x790F 10420 bytes
SHA-256: 7bfccb2f9d1e153d19515ea585e240d74677fcfdbb4500d12304cbcfce6f42ee
font_02_sfnt_off00009c96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C96 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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