Malicious PDF — malware analysis report

Static analysis result for SHA-256 7097a827afb29888…

MALICIOUS

PDF

50.7 KB Created: 2020-08-06 12:48:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1584f43e00e417bd81c4b6ba35e0a281 SHA-1: ec9ef21fec101f614f5869f884e73b5814c9bc9b SHA-256: 7097a827afb298881f235f4a2476b238edd67f6a3cb037bf17dd7eca5ca58dbe
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=allyn+and+bacon+guide+to+writing+7th+edition+pdf+free'. This redirector is likely used to obscure the final destination of the malicious payload, which is presented as a free study guide. The ML classifier strongly indicated maliciousness, and the presence of numerous SEO-optimized links suggests an attempt to attract victims through search engines.

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=allyn+and+bacon+guide+to+writing+7th+edition+pdf+free In PDF document text
    • http://wupikama.holocaustinfilm.org/uploads/1/3/0/7/130738732/7c2f7ff31.pdfIn PDF document text
    • http://vakijif.rollerstudija.com/uploads/1/3/0/8/130874633/76f190.pdfIn PDF document text
    • http://files.innovationsbuildingservices.com/uploads/1/3/1/4/131438741/3ca2f8128cf.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/1/0433/3145/3081/files/comptia_casp_study_guide_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/30184051986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/43344216568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1021/2519/files/80839775353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/49719610523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8733/0464/files/2995313816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7393/6291/files/bujivulixazakego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9357/3284/files/67787301665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0496/0661/files/33512490110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lurexemip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7816/4387/files/40863945056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9027/1642/files/30032536072.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_off00008438.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8438 5640 bytes
SHA-256: 3c4e03b619ed77943146568bffcbfc0eb045ce846ef592604bb5c42496973e6d
font_01_sfnt_off0000978d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x978D 10596 bytes
SHA-256: f5ddf49c6d50934b8816164a916db378cf4040e82d1b7e5efa605ad05c226892

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