Malicious PDF — malware analysis report

Static analysis result for SHA-256 7888350d770acc84…

MALICIOUS

PDF

44.6 KB Created: 2020-08-31 04:48:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ffdbe82d7fa30ed62fcb9d016d5faaf SHA-1: 8d41345f715c5ee960db19be7a5cb4335485dd58 SHA-256: 7888350d770acc84665fa06c7a85f6e2ffd9368a1db97913ae4149e4252cb13c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the 'ttraff.com' domain. The document body, though heavily obfuscated, contains text related to 'Cumberland valley township bedford county pa' and the URL 'https://ttraff.com/wix?keyword=cumberland+valley+township+bedford+county+pa', suggesting a phishing or scam lure. The presence of numerous external PDF links, many pointing to benign Shopify URLs, indicates a potential SEO manipulation tactic to drive traffic to the malicious redirector.

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.com/wix?keyword=cumberland+valley+township+bedford+county+pa In 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/1/0432/5736/4638/files/minuwavavabipokerom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6929/9098/files/certiport_excel_exam_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2125/4312/files/diu_mirena_efectos_secundarios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4869/0076/files/xikinirigalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7450/9213/files/absalom_absalom_free.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_e0adebd9d97141c1a3f4f1d10c162897.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/77eba6_16307961e0554c55840abadd4ae5239e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9117/3278/files/polel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4335/6825/files/this_boy_s_life_tobias_wolff_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9270/4408/files/59996123791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4894/4295/files/nuvedasilule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7623/1072/files/14209500920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4392/9757/files/bloom_taxonomy_verbs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1682/0648/files/2020_design_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9780/7265/files/86731813943.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000567e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x567E 5692 bytes
SHA-256: 49f111cdb6044d7769e5848c41cf01252a0dde87f5cc8c44e424744d3df0d38a
font_01_sfnt_off000069be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69BE 11168 bytes
SHA-256: 79d8e073d2ce4a8f2e32d1a6edb1aca177d55b067ca74d6a67024c2d82df581b
font_02_sfnt_off00008fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FCF 16232 bytes
SHA-256: c2f1b8e27e4c5d1eb6694bcf999bed56489d599ed66a9b176e3ad865fa2ee921