Malicious PDF — malware analysis report

Static analysis result for SHA-256 e43c52132761075e…

MALICIOUS

PDF

45.4 KB Created: 2020-08-11 21:45:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 54cfefa46c79763ffffd716ad3353281 SHA-1: 2a8888d029b8d33de2acb90997c11e2300bc0380 SHA-256: e43c52132761075e15114d98304f72ceaa759d297e2df10ccac16832a47afe97
194 Risk Score

Malware Insights

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

The PDF file contains a link farm and a critical redirector link pointing to 'https://ttraff.cc/wb?keyword=graco%20pack%20and%20play%20deluxe%20manual'. This indicates a social engineering lure, likely to trick users into clicking the link under the guise of finding a manual. The redirector is then expected to lead to malicious content or a phishing page. No scripts were extracted, and the document body was heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

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/wb?keyword=graco%20pack%20and%20play%20deluxe%20manual In PDF document text
    • http://files.bluegreenandredconstruction.com/uploads/1/3/1/3/131379552/zivopedolamaferimal.pdfIn PDF document text
    • http://files.alaslove.com/uploads/1/3/1/3/131379113/2307525.pdfIn PDF document text
    • http://files.columbusfoodtroll.com/uploads/1/3/2/6/132682833/0afc041dc78e.pdfIn PDF document text
    • http://files.kyocreations.com/uploads/1/3/1/4/131437341/panelivuluj_jopewozas_devurefos.pdfIn PDF document text
    • http://files.steppingstonesproject.org/uploads/1/3/0/8/130815437/bemiwox.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/1/0435/2838/8772/files/mettler_toledo_ind560_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9767/0303/files/zedawepazofuxixalami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2520/files/bridge_of_spies_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0212/6751/files/pixefipinunirudan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32829552166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4666/4349/files/oxford_dictionary_of_biochemistry_and_molecular_biology_second_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9939/5998/files/95069130096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/61966494077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0604/2023/files/aarti_sangrah_in_marathi_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9563/7659/files/69387616982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2482/4995/files/rujexuxilon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7439/6058/files/4849261576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6518/6206/files/open_court_resourses.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C2 5308 bytes
SHA-256: 83665d8f1a7af9ee3203a65fc3cb1d226a03a4ecb1df5a1ee48ba0183d32f46e
font_01_sfnt_off000079cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79CC 14896 bytes
SHA-256: cd7ed3023909fad990171e2d73a3cc6ef8e6a6d84f17d67cae3fc909097984f6