Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f483bf69c0a1136…

MALICIOUS

PDF

43.0 KB Created: 2020-08-14 08:33:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49e85b6db1edc5d300708ae80b05d6e8 SHA-1: 87a202d720dc1c376743561563ecb054024af142 SHA-256: 7f483bf69c0a11363cc293bf79f6a2078d3ae37502cb45ab71569580f59ab476
162 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 known for malicious activity. The document body and embedded links suggest a lure to external content, likely to download a secondary payload or redirect to a phishing site. The ML classifier strongly indicated maliciousness.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.ru/pify?keyword=browser+android++video In PDF document text
    • http://files.texasartteacher.org/uploads/1/3/2/6/132696044/lututedegavapus.pdfIn PDF document text
    • http://zulegova.2020hawaiishirts.com/uploads/1/3/2/8/132814930/ff06aa1df4.pdfIn PDF document text
    • http://files.ashleyscleaningservice.org/uploads/1/3/0/8/130814070/5765236.pdfIn PDF document text
    • http://mimevi.unitedchurchofhuntington.com/uploads/1/3/0/7/130776436/c2f8b817b.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/1/0432/5913/4112/files/tudovobudufisomawoxovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/61282453026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7473/8593/files/giulio_argan_arte_moderna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7976/1061/files/tedijolonoloverorer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4568/2328/files/estrategias_de_aprendizaje_concepto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9164/7894/files/bolzano_weierstrass_theorem_proof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/42350734659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5843/3943/files/ic_cd4013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1195/6126/files/acupuncture_for_ivf_and_assisted_reproduction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16946396068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3033/2060/files/tf2_unusual_weapons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7625/5897/files/90053854342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1332/2398/files/hematology_cbc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/vomoxevujo.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 1

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_off00006987.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6987 4988 bytes
SHA-256: b030541af02d0c712dee8f267900e1d1319ab1d04897539b9fb7391c5cb5847f
font_01_sfnt_off00007aa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA5 10740 bytes
SHA-256: a97d077f9e8a7373bcd06ae08f6c45b59cdfe70f4f347fef11debbb38cf61d45

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