Malicious PDF — malware analysis report

Static analysis result for SHA-256 d94dcdb6e9cf4113…

MALICIOUS

PDF

45.8 KB Created: 2020-08-11 01:57:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae3a67848322613a5f31a9fd378e7534 SHA-1: a37bf7536a9893eb437b3ba7b30783d3d150bccf SHA-256: d94dcdb6e9cf4113081fc90d45cfb0b8aabb298364197d9fd2d654690ef5e7bd
202 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirect. This suggests a phishing or scam attempt where the user is lured by the promise of a tutorial to a malicious site.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=avr+asm+tutorial+pdf In PDF document text
    • http://files.rhbconstructorainmobiliariasrl.com/uploads/1/3/0/9/130968958/jimitefagidedefegaso.pdfIn PDF document text
    • http://files.dianeperell.com/uploads/1/3/0/7/130738596/7381900.pdfIn PDF document text
    • http://files.eacpoultry.com/uploads/1/3/0/7/130775108/refugunuzig-gogodesujizunu.pdfIn PDF document text
    • http://files.tarringtonswimteam.org/uploads/1/3/0/9/130969937/7332977.pdfIn PDF document text
    • http://files.ollrichva.org/uploads/1/3/1/8/131856200/8575011.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/1/0439/7914/5374/files/discord_profile_search.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9809/5272/files/mopevumulepowitizubixubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5433/3093/files/fobubugafikore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6903/7974/files/85554843030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11383010616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/fonorixova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7091/4717/files/26125028729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9692/3555/files/37641261960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29480145432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1184/1949/files/43075943192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9452/3552/files/animorphs_book_1.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_off00007434.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7434 5236 bytes
SHA-256: e143521625ac102df04acdb97647e0835f6f0b4ccf8d095e482676bc50e24099
font_01_sfnt_off000085f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F5 10560 bytes
SHA-256: fd2eaf1c4ffbfbc4662b86fa869f9e2d4e92eea8ffd25bf7ac51d54bfc9bb9a5

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