Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7a7b8f1a95cfd48…

MALICIOUS

PDF

44.5 KB Created: 2020-08-20 03:29:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8a462f535807f23dd7b6df1bf837202 SHA-1: 1ff0cc0f98077964e26068fdfb216ce9d9223b91 SHA-256: f7a7b8f1a95cfd480b055db3a3c8750abc0e0f5152d3ce648ce8e79215514959
194 Risk Score

Malware Insights

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

The PDF contains a link to a malicious redirector, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure for free software, which is a common social engineering tactic. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many of which point to Shopify domains, likely to improve search engine ranking for malicious content. The ML classifier also 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.
  • 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=free+android+phone+recovery+app In PDF document text
    • http://juxafok.hudsonvalleycasting.com/uploads/1/3/1/0/131070146/2215620.pdfIn PDF document text
    • http://files.andrewfaulkphotography.com/uploads/1/3/0/7/130738912/mubokeb-jorojunopimeka-xuxidejixoxez.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/1/0435/9307/2808/files/gologarolojeki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/isometric_drawing_exercise_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7700/files/lakitafobofejukevugududi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4929/4756/files/check_version_of_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9463/8749/files/bopowefopupozurepal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5014/7733/files/26142089271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/87665456752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/nowubowamoxoweze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5208/1053/files/dalapesadaxafivokopegenut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4595/2408/files/lewikid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1772/2280/files/list_of_all_important_days_in.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9866/7163/files/amuleto_roberto_bolao_descargar.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 2

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_off000073c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C2 5068 bytes
SHA-256: 5a6d1adf92040f19150dd54ac6e9bdf157b7ce77874cfb89a474e1984c7cfd1d
font_01_sfnt_off00008501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8501 9464 bytes
SHA-256: 7d9e63cf0a0958af95376bc0c14bd22104679a2dcb0903b55fefcb3130b72543

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