Malicious PDF — malware analysis report

Static analysis result for SHA-256 e665851ceae3f4bb…

MALICIOUS

PDF

58.4 KB Created: 2020-08-06 08:02:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f013c70631e29e18637f3f9cc472156 SHA-1: 9cf7e2417073d23da4bbcb524e97d506c74d3a98 SHA-256: e665851ceae3f4bbfab321524c707926e0cd3bc6efb230328b6131f8e93e07cd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This URL is embedded within the document body, suggesting a social engineering lure to trick the user into visiting a malicious site. The PDF also contains a large number of external PDF links, indicating a link farm strategy. No scripts were extracted from this sample.

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=que+es+el+neoliberalismo+pdf In PDF document text
    • http://files.allendaleinsurance.com/uploads/1/3/0/8/130873851/ximupabaped.pdfIn PDF document text
    • http://files.onebookonelife.com/uploads/1/3/0/7/130775992/ff50756ea81784.pdfIn PDF document text
    • http://files.newhorizonperuvians.com/uploads/1/3/0/8/130813796/7820920.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/1/0433/9479/3635/files/grizzles_vs_spurs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6653/0721/files/nabenovejezute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3464/8482/files/65603889642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3462/4679/files/java_programming_lab_viva_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2589/0469/files/florida_rt-_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2644/7525/files/nifisako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1321/8199/files/aspects_of_human_development.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5240/0793/files/11995392967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4072/7463/files/64034022451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9115/5361/files/92927197065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4316/6107/files/sejoxebaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5511/8501/files/lupaniwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0736/0667/files/wirenisefagumigibixod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6563/8050/files/simplesmente_acontece_download.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 5

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_off0000a38c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA38C 5388 bytes
SHA-256: 7c30f5e718482d0feb04ea9af9eb4be0a57dffb59ff80073eb438deaa7fd9d83
font_01_sfnt_off0000b5ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5BA 11416 bytes
SHA-256: 64ba43187b5df05b95168152c84b8dec5fd1495297b4be854a61cad0915a5e69

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