Malicious PDF — malware analysis report

Static analysis result for SHA-256 045c015a7ca13d0e…

MALICIOUS

PDF

44.2 KB Created: 2020-08-13 23:45:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 47126a5b3130810eaf2f101e3f1df186 SHA-1: 90eba64e330dd60a013346792c9d81ef6c1877c0 SHA-256: 045c015a7ca13d0e4744015d0806830e5f5f73b58fb3c4e0db770948b265b7fd
194 Risk Score

Malware Insights

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

The PDF contains multiple links designed to appear as legitimate documents, but they redirect to a malicious URL. The primary lure is a link disguised as a 'dissertation acknowledgements examples pdf'. This technique is commonly used for phishing or to distribute malware. The ML classifier strongly supports the malicious verdict.

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=dissertation+acknowledgements+examples+pdf In PDF document text
    • http://mitovujul.chwpress.com/uploads/1/3/2/3/132302939/xisatoroteka-ludozaduv-pixikug.pdfIn PDF document text
    • http://files.lindsayreidart.co.uk/uploads/1/3/0/8/130874588/gegafidemoni.pdfIn PDF document text
    • http://files.luthanealadams.com/uploads/1/3/0/7/130739654/zupezigu.pdfIn PDF document text
    • http://zusijibox.dawnamberknight.ca/uploads/1/3/1/4/131437792/pojamajem_bufiv_suginabexixod_sipovipikosoxu.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/1/0435/5204/7255/files/hearthstone_arena_guide_september_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3663/8369/files/28003907250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9635/6504/files/sinafoduvalig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4944/1687/files/back_titration_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2484/8795/files/fojofuzagunuviluxinalav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/non_cash_expenses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4539/4331/files/37108989406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1378/3203/files/mupufedisazubumen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/34876182030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9279/5801/files/55729712929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4539/4331/files/zajetavizovalukamoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1024/3230/files/sogetonaxozitozonipelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6819/3952/files/coachmen_rv_owners_manual.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_off00006d2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2A 5696 bytes
SHA-256: 3d24af27821c2cf49193a56a51d546ce16ccd12198eeb49f797e3f0f7426fe9c
font_01_sfnt_off0000809a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x809A 10216 bytes
SHA-256: 012c4bc5aeeb9601cd409a4c940027170b4fed2482f72c0e7671b016f19b0946

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