Malicious PDF — malware analysis report

Static analysis result for SHA-256 043f757b7963e4c4…

MALICIOUS

PDF

51.6 KB Created: 2020-08-12 15:04:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8c69d473f5e3e29d26e44c86b729322 SHA-1: b3e5d6fbde4649a575f5ee4d04c5bd2ee438f2b7 SHA-256: 043f757b7963e4c4c610c677bf4c54460371e4b761525d16c6c94a9f4ff58070
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.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains URLs that appear to be part of an SEO link farm designed to lure users into downloading PDFs. The primary malicious link is https://ttraff.cc/pify?keyword=autocratic+and+democratic+leadership+styles+pdf, which likely leads to a phishing or malware download site.

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.cc/pify?keyword=autocratic+and+democratic+leadership+styles+pdf In PDF document text
    • http://files.innovativetruth.org/uploads/1/3/1/1/131164442/975212.pdfIn PDF document text
    • http://files.neiljohannsenart.com/uploads/1/3/0/8/130874380/9056561.pdfIn PDF document text
    • http://dojaru.sanspointe.com/uploads/1/3/2/7/132710589/d4a82dfdf5a.pdfIn PDF document text
    • http://files.lcpiano.studio/uploads/1/3/2/6/132681304/6823401.pdfIn PDF document text
    • http://kaweg.highlandtigers.com/uploads/1/3/0/9/130969723/7d1d742e9127c5b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8213/0332/files/newisasiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9579/3571/files/zalugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6962/6781/files/learn_japanese_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6192/7318/files/73697610874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1349/7247/files/anna_university_medical_fitness_certificate_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5326/0706/files/bodobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/92027584013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3688/4642/files/45813987593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/xinizunirufenaboki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0371/5481/files/57516112417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/the_psychology_of_love_sigmund_freud_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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E76 5368 bytes
SHA-256: 8c50b4e378b5daea0e2e1e0a9925c4115e40b5160fbd41c6c13a0b7a1b589506
font_01_sfnt_off0000908c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x908C 10076 bytes
SHA-256: d71a97fcd19e23cdb084b7f289f5b392ca4e405a0a947c3fec606309b3187155
font_02_sfnt_off0000b2fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2FD 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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