Malicious PDF — malware analysis report

Static analysis result for SHA-256 2541cbfcffa52ea9…

MALICIOUS

PDF

40.8 KB Created: 2020-08-01 07:22:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76972b8ebec46ba08cb0f374c4ba52bd SHA-1: d0fc956f7770613de8d4d86a5754cb3e785d1fa9 SHA-256: 2541cbfcffa52ea98be5faa37e02373fcd8df58d983abaa668cfc3f638fa2725
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link T1059.001 PowerShell

The PDF document contains a lure related to "chrome download streaming video" and links to a "mercedes e class owners manual" which redirects to malicious infrastructure. The document body also contains the malicious URL, indicating a social engineering attempt to trick the user into clicking the link. The presence of multiple external PDF links suggests a link farm used for SEO poisoning to attract victims. No scripts were extracted, but the primary attack vector appears to be a malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=chrome+download+streaming+video In PDF document text
    • http://files.trimusicallearning.org/uploads/1/3/1/8/131871687/susibejaripakuje.pdfIn PDF document text
    • http://files.nem-massage.com/uploads/1/3/1/1/131163512/faxobexoxokepaso.pdfIn PDF document text
    • http://files.newincomastires.com/uploads/1/3/1/4/131438759/6002272.pdfIn PDF document text
    • http://files.montessoridonelson.org/uploads/1/3/2/7/132711999/5894191.pdfIn PDF document text
    • http://files.jarettfajardo.com/uploads/1/3/1/4/131407918/2125320.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/1/0437/0432/0154/files/mercedes_e_class_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2807/0052/files/50748643154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7181/6358/files/97460949466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/kagenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0594/9590/files/97275547365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/10048580112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojezurin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1596/9688/files/momubunoper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4104/6171/files/resexivotinatuzadufed.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_off00006076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6076 5296 bytes
SHA-256: e03589ad55283e194795928637ca8b43dacf0752c7b2808461c69b561135d6b2
font_01_sfnt_off00007260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7260 10576 bytes
SHA-256: 703591e7cd1a551b5b2318d3d018a2869b39d4275396c9d1858b0cefdf918130

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