Malicious PDF — malware analysis report

Static analysis result for SHA-256 547948043104af4b…

MALICIOUS

PDF

43.2 KB Created: 2020-08-26 10:05:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cb00251e7ab1f6d8f443e2a3eb25a43b SHA-1: a3204850848a73e38803f25ca6c2b01bc1a55ec6 SHA-256: 547948043104af4b59259806d3be50e763a42d86a00508c7bbe611be1fb6ca8a
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious URL, disguised as a download for a popular game. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this behavior. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links, as indicated by 'PDF_SEO_LINK_FARM'. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector is the malicious link embedded within the document.

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.ru/pify?keyword=call+of+duty+4+modern+warfare+torren In PDF document text
    • http://ginesax.qsime.com/uploads/1/3/0/7/130739922/dixusorilidexixanoji.pdfIn PDF document text
    • http://files.humblegritsales.com/uploads/1/3/0/7/130740320/6770d3096c8.pdfIn PDF document text
    • http://solafovus.psychodrama-sociometry.com/uploads/1/3/1/6/131637136/wawerinoxavax_sebuvumelemuvo.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/1/0440/2901/8262/files/the_vehicle_routing_problem_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5747/0870/files/xoxolotomilaramimixopigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8853/8776/files/bastar_university_supply_time_table_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9461/files/85338690259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0452/5720/files/78260874212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2168/0283/files/75917536510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/top_eleven_hack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9074/7293/files/96521128443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7581/9927/files/93442929123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6196/7013/files/32074102354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8892/9187/files/zovotoseginivolagunixus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4436/2647/files/brand_identity_meaning.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_off00006c0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0F 5064 bytes
SHA-256: ec58a776c1eb5c5a7327307dc2b7e2864639e2c8281a279fedd5992146a85f12
font_01_sfnt_off00007d4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4E 10128 bytes
SHA-256: bffe758f912caede3fca76f07c1e8e34c76e056b072572ab3166df962f0131ab

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