Malicious PDF — malware analysis report

Static analysis result for SHA-256 74be770ad087df44…

MALICIOUS

PDF

42.6 KB Created: 2020-08-06 05:08:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 596f40685f5c18001726413136e5d728 SHA-1: 7c82c7296bce4e8327fbfa949d1dfae15f8cf1f9 SHA-256: 74be770ad087df44b72ff075592690b9fb4311417ce0f1d8690a1e95a54d9eb9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. This indicates a phishing or scam attempt, likely to trick users into downloading further malware or visiting malicious sites under the guise of "free downloads". No scripts were extracted, but the presence of malicious redirector links and the heuristic firings strongly suggest a malicious intent.

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=african+american+music+history+pdf In PDF document text
    • http://files.gummystudios.com/uploads/1/3/0/7/130738974/lukekumologirosozosa.pdfIn PDF document text
    • http://files.chantrydancecompany.org/uploads/1/3/0/9/130969182/regiredopib-dedixizekasa-kativafe.pdfIn PDF document text
    • http://files.mosaicoflight.com/uploads/1/3/1/4/131438190/govewe.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/1/0428/5035/3318/files/gifefevapasaxanebepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8513/6021/files/zumafegemopozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8650/3326/files/70742812138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1076/8546/files/wijeberojujonofapuropopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/4962510008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/40388425219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4166/6710/files/24200111640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3550/9415/files/16123624451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7011/2423/files/lupovijoziw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6869/4432/files/22361802661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4015/2475/files/56488786524.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 7

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_off000067ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FF 5456 bytes
SHA-256: fdb0b295e0acb0f6b22882fce2ec5cf29206fb8d11c43bf3703e8f590c4a3d48
font_01_sfnt_off00007a71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A71 10304 bytes
SHA-256: 57ca13d7f131cad1f1f2dd4307848b985295a85b0469052d5846849c4499718a

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