Malicious PDF — malware analysis report

Static analysis result for SHA-256 335b184219cf047a…

MALICIOUS

PDF

49.7 KB Created: 2020-08-28 07:02:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 55872fc00ac76246f9de9402725e2803 SHA-1: 953b14aaa3ae3ded0069422e357630ba31996dc3 SHA-256: 335b184219cf047abe345ecd31b4b0295fdc333eb31b1e7db320edc83908a823
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file exhibits malicious behavior through a critical heuristic firing indicating a redirector link to 'ttraff.me'. Additionally, it contains a mass external PDF link farm, with the first URL pointing to a Shopify domain. The embedded URL in the document body further supports the malicious intent. The primary attack pattern involves luring users through these links, likely leading to a phishing page or malware download.

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.me/pify?keyword=ejercicios+probabilidad+selectividad+resueltos+madrid In PDF document text
    • http://files.boundtogethercounseling.com/uploads/1/3/0/8/130814439/7698201.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/1/0433/7205/2643/files/the_cask_of_amontillado_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1949/9682/files/51566249580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3661/3544/files/luresegena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9050/2042/files/rizutib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8061/4041/files/keresesifedofekaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5149/1236/files/call_of_duty_black_ops_steam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3220/7782/files/parlisis_del_nervio_facial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/81404303435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5040/5783/files/gb_whatsapp_ios_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5419/4070/files/fuxuwoxib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5560/3094/files/84984691432.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 4

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_off00007e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9E 5452 bytes
SHA-256: 2a16d5fa2d976fd00faaf5c6ad1339185be8baca6b992fd841e7788d138654df
font_01_sfnt_off0000910c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x910C 11880 bytes
SHA-256: a7b935c9efaca9a8fd60eddb521b90e1cd0478dfa2a307e81d698c3afaa80a89

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