Malicious PDF — malware analysis report

Static analysis result for SHA-256 ead4f5beeaf20260…

MALICIOUS

PDF

41.0 KB Created: 2020-08-22 16:05:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9598fc48b5348593b187fdce6079fc80 SHA-1: 536189e7cf2faf49fe19f0e7a6b9f4e9d7879e45 SHA-256: ead4f5beeaf202605094225e2752b18adc97a37e30f5fdbfb4f9386a0fd8a7ce
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document was identified as malicious due to the presence of a critical heuristic firing for a PDF redirector link pointing to `https://ttraff.cc/pify?keyword=d%2526+d+5e+drunken+master+guide`. Additionally, another critical heuristic detected a PDF link farm containing numerous external PDF links, many hosted on `cdn.shopify.com`. This suggests the document's primary purpose is to lure users into clicking malicious links, likely leading to phishing pages or malware downloads.

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=d%2526+d+5e+drunken+master+guide In PDF document text
    • http://files.nwlj.co.uk/uploads/1/3/1/8/131856435/derabudixasonelag.pdfIn PDF document text
    • http://mukoxajar.katahdinengineering.com/uploads/1/3/0/7/130775413/9047560.pdfIn PDF document text
    • http://files.sixinseoul.com/uploads/1/3/0/7/130775357/2c5f53008f.pdfIn PDF document text
    • http://files.mazzapics.com/uploads/1/3/1/1/131163859/fanexep.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/1/0431/5460/4198/files/87741872405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/77710268721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9332/7008/files/petipunijuguwavuforar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3458/0891/files/fowejadasokifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/sizafokadulasenam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4324/8545/files/gakezenonuritovoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/jidatim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0222/5059/files/wewokigozimojul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4580/6503/files/65558471531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0668/7394/files/financial_aid_appeal_letter_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7367/0037/files/b._pharm_2_year_syllabus.pdfIn PDF document text
    • https://medlineplus.gov/vitamind.htmlIn 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_off00006524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6524 4156 bytes
SHA-256: aee99b222cd6436686fc1950c70eddb31f3190a8e42336a2f9d4910ea93cda3d
font_01_sfnt_off0000734f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734F 11008 bytes
SHA-256: 64e6b9bafb7d0e481aab7668b177489ad27c8317e8f34ec68123cd67ab1bc230

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