Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f19ceecf2efd407…

MALICIOUS

PDF

42.8 KB Created: 2020-08-15 04:51:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b07ba61b89a1ceef178b8c3f4961d63 SHA-1: 68e4879efeed15ba3fd6e6721b412340a5379d69 SHA-256: 7f19ceecf2efd4076932c9a44d8d500a96d9750777a5135f8df080f6ffd4dbe7
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though obfuscated, contains URLs that appear to be part of an SEO link farm designed to lure users with keywords like 'transformers the last knight toys'. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware download page.

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=transformers+the+last+knight+toys In PDF document text
    • http://files.viewsfromthejumpseat.net/uploads/1/3/0/8/130874381/vudodebakewaf_jezivufi.pdfIn PDF document text
    • http://files.asdontheroad2019.org/uploads/1/3/2/7/132712661/lejozugezite.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/1/0437/9266/2688/files/bevewifiligujulaluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/imagine_dragons_amsterdam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4539/6386/files/53760622848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8882/2950/files/marlin_anet_a8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/minecraft_1._8_minimaps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7868/4573/files/us_billboard_top_100_single_charts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/7275182805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/xinudit.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 6

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_off0000696c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x696C 5296 bytes
SHA-256: 5b2dde8dc50dc65cc1224fc48193fda67558e82e61bcb89e053f92bd732324ac
font_01_sfnt_off00007b4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B4A 10360 bytes
SHA-256: 212334c946948512ddb09aaab79e7bd246cd600effbd6c57f94b131745a45499

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