Malicious PDF — malware analysis report

Static analysis result for SHA-256 b69d08f0b24fc1ed…

MALICIOUS

PDF

65.5 KB Created: 2020-08-09 16:13:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68f9214a8f4cbdb5fb0f23f404ad0945 SHA-1: f4b0f798245225ddcceee4a1b9cf6676e510ce17 SHA-256: b69d08f0b24fc1ed06ac8a6944c8a79a58cb0acb35c47906bb1d21df9a788b24
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, but one critical link redirects to a known malicious domain (ttraff.cc). This indicates a link farm or redirection attack designed to lead users to malicious content. The document body text, though partially corrupted, contains keywords related to academic theses, suggesting a lure to disguise the 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/pify?keyword=dedicatorias+y+agradecimientos+para+tesis+pdf In PDF document text
    • http://files.nycsigmakappa.com/uploads/1/3/1/4/131453499/fb96883ee0.pdfIn PDF document text
    • http://labosuvag.swracemanagement.com/uploads/1/3/1/4/131438641/fafuxonarutu.pdfIn PDF document text
    • http://mefadi.blackdogdigital.com/uploads/1/3/1/6/131637316/5b577ff4c7d9.pdfIn PDF document text
    • http://files.ianlong.org/uploads/1/3/1/4/131410479/xijemu.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/1/0428/2531/8563/files/burozesurolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/luxuwubewizigewetiwizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7762/3201/files/dasinuvebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7957/3408/files/elements_that_hinder_effective_communication.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6690/1148/files/wukamakikawog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6303/3507/files/84180908033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2956/0481/files/2s_complement_to_decimal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5653/6471/files/29792650285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/acl_reconstruction_rehab_protocol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/82190886295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/3835864190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9201/6280/files/business_plan_samples_in_nigeria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0685/3269/files/cambridge_international_dictionary_of_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1230/9670/files/51052717484.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000872a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x872A 6744 bytes
SHA-256: ffeb89eaad713c9717385028f79c9757067aafb2c2382ea8cbab0e6efe35a425
font_01_sfnt_off00009812.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9812 5544 bytes
SHA-256: 0fa7e90a5c1e8ac330980d98ff87f1def4a3d13c495338779da14470fa22b294
font_02_sfnt_off0000aadf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAADF 4900 bytes
SHA-256: b1ada7e4af363a81a9a0e6448f2f622c913faa0f37b76583b11a1d40254025c2
font_03_sfnt_off0000bbf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBF9 11316 bytes
SHA-256: 2f20cc05dc2a440c32b45b9a12bdfdaada0ea29a09b397bc2e89ac92e624c6f4
font_04_sfnt_off0000e0d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D0 16060 bytes
SHA-256: 313c3940a6f4aae92ceaa1b1a843de6e6f13411355a457aba6e018c383fce54c