Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f14453d9d8aa5b0…

MALICIOUS

PDF

46.5 KB Created: 2020-08-19 08:51:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76997325fb599cd545d8c89f72e95de0 SHA-1: f4c2da6e463680a684d6ba4778e2484639cc1c31 SHA-256: 7f14453d9d8aa5b078b12c5187f08de4414d032ac53a747ad965885c7df80645
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, also contains this redirector URL and other benign-looking Shopify links, suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector is a high-confidence 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/pify?keyword=android+studio+project+files+missing In PDF document text
    • http://files.steveneillsgarage.com/uploads/1/3/1/4/131409127/xisubibuxubob.pdfIn PDF document text
    • http://kujari.yofisc.org/uploads/1/3/2/6/132681670/vagemuzo.pdfIn PDF document text
    • http://files.wmhomeschoolers.com/uploads/1/3/0/9/130970009/a749d02.pdfIn PDF document text
    • http://files.olga-ta-va.com/uploads/1/3/0/9/130969580/59490.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/1/0438/1409/2960/files/uninstall_office_365_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4414/3253/files/acronis_true_image_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1026/8064/files/45310140058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/mezeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1304/4386/files/corona_effect.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0282/9734/files/how_to_pin_a_message_on_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9676/8661/files/64963699839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0400/1443/files/sagona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3745/6534/files/91503884108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6677/8009/files/68481643642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6278/8245/files/22956356404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3445/0840/files/python_csv_to_json.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/7261/0464/files/22105703249.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 5

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_off000078fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78FD 5332 bytes
SHA-256: d4c123c84736e962c29376c182a31500e392cfe0bc1b3fd1b8fea44d42261469
font_01_sfnt_off00008b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B11 9920 bytes
SHA-256: 53b56e2b83acd8ae82b548861d6364997c94f32bb913bda98d7606ee6b3f1020

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