Malicious PDF — malware analysis report

Static analysis result for SHA-256 596b2817e66caa9f…

MALICIOUS

PDF

40.7 KB Created: 2020-08-12 02:53:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 169383b1f33482d892c3e827fa701721 SHA-1: e1184bd27984f4390f653ee8a9479f0784945541 SHA-256: 596b2817e66caa9ff141e29925b0335ebd8e446d8deaa67f32c3b63c432cf073
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body and embedded links suggest a lure for downloading a 'PDF editor', which is a common social engineering tactic. The primary malicious URL identified is https://ttraff.com/wb?keyword=pdf%20editor%20for%20android%20phone%20free, which likely leads to further malicious content or malware download.

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/wb?keyword=pdf%20editor%20for%20android%20phone%20free In PDF document text
    • http://gumuro.leiawood.com/uploads/1/3/0/8/130814535/8d2262257.pdfIn PDF document text
    • http://jeduku.historic-brookhaven.org/uploads/1/3/1/6/131606552/00454c97f.pdfIn PDF document text
    • http://files.skwarczynskifilms.com/uploads/1/3/1/6/131606122/3713372.pdfIn PDF document text
    • http://zodele.triathlonmalta.org/uploads/1/3/1/6/131606289/luxamigobu-bukibega-godalix-widowala.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/1/0428/6355/8815/files/tci_history_alive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6064/8343/files/google_sheets_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1210/1020/files/animal_farm_york_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0570/5374/files/the_cartoon_guide_to_calculus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/61882537676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/dukupegerulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7628/7645/files/aileron_reversal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94448736580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6547/5229/files/lepuxatizejolov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1219/3438/files/detaxorazaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9928/3861/files/66125362080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4156/6370/files/que_es_balance_de_materia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/6588/1255/files/89657790130.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 3

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_off000061e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E9 4920 bytes
SHA-256: 7a8a659b2a77e7016589f0134ee63974645ebaec5e6187e667ef24b64b4ca433
font_01_sfnt_off0000729b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x729B 10364 bytes
SHA-256: 803799f50b1802076239f306e961e39ff6899c7512cca9f0a7a8e5f6cf96395e

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