Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ad7490e796757d4…

MALICIOUS

PDF

43.9 KB Created: 2020-08-19 02:24:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b54d47779d874539157c96bd51d5b8ea SHA-1: 49f6d95f8bc403ddd6d1064a575764a7431e33d0 SHA-256: 7ad7490e796757d4a56fe58f77da1172343e8040aeb2ab26c3275197090b272d
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, including a redirector URL that is flagged as malicious. The heuristic PDF_SEO_LINK_FARM indicates a link farm designed to attract users, likely through search engines, with the ultimate goal of directing them to malicious content. The presence of a malicious redirector suggests an attempt to deliver a second-stage payload or conduct phishing.

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=2007+jeep+grand+cherokee+overland+manual In PDF document text
    • http://kutowunop.mranselm.com/uploads/1/3/1/1/131164250/julawalonebo.pdfIn PDF document text
    • http://tinuko.dreamcarmediaevents.com/uploads/1/3/0/7/130775897/2071790.pdfIn PDF document text
    • http://files.calas-ct.org/uploads/1/3/1/4/131437530/d4bfc4c835551cc.pdfIn PDF document text
    • http://tadakifa.artbywinette.com/uploads/1/3/1/8/131856772/9724117.pdfIn PDF document text
    • http://files.theroute92.com/uploads/1/3/0/8/130873973/zuguxizamuri.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/1/0433/5193/3078/files/30668435658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7496/8997/files/sikujawozarabek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7227/5103/files/paradox_in_a_sentence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7185/5002/files/elementary_biology_vol_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6475/0243/files/ampicillin_mode_of_action.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6850/5766/files/pegaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2024/7462/files/fizobixapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3943/8501/files/3129642145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6621/2003/files/65301489491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6397/4805/files/dopin.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_off000062ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AC 5768 bytes
SHA-256: 7ed67df198afc619e2b7bb6cce45d306f8c3105620cb78987bbb782edee97dff
font_01_sfnt_off00007625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7625 14104 bytes
SHA-256: 9f13db54f4102d3c976e68b63bf005505a8db7efff85c6a78d92370455523941

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