Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff1134960a6be8c7…

MALICIOUS

PDF

64.0 KB Created: 2020-08-23 02:27:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9368f855da1ecb8eb01d779a1baf7cba SHA-1: 3658fa3f341eebccbd902929d6a1b8e62e2dec4c SHA-256: ff1134960a6be8c7960a25e05a6c7dc262ea8f09457011894e1a15fb9eb90826
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, a common tactic for SEO poisoning or redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=bootstrap+inline+form+input+width'. While many other links point to benign Shopify domains, the presence of the malicious redirector is a strong indicator of malicious intent. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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/pify?keyword=bootstrap+inline+form+input+width In PDF document text
    • http://kabegafod.northvicgps.com/uploads/1/3/0/7/130740117/nuwuz.pdfIn PDF document text
    • http://files.whimsyoaklamanchas.com/uploads/1/3/0/7/130775257/duzopulepekezu-begena.pdfIn PDF document text
    • http://files.readingdoubleglazing.com/uploads/1/3/1/3/131379678/4904425.pdfIn PDF document text
    • http://files.beejaysenglish.com/uploads/1/3/2/8/132814071/9463615.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2207/4534/files/23841221034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0409/0777/files/86371036390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4928/6817/files/www_bdone_bdx_com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9722/6402/files/soludoroj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/61333431725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3087/9136/files/best_malayalam_movies_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3600/8870/files/foxfi_key_hack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2642/1672/files/2004_acura_mdx_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7329/7822/files/best_rpg_puzzle_games_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4350/9656/files/github_markdown_image_size.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009c3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C3E 5304 bytes
SHA-256: 18cd4e8aa90ba8b4a16397326a8c04dc68ecae84d138fd5ef8c6a142e681551e
font_01_sfnt_off0000ae24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE24 17108 bytes
SHA-256: 5ca33f9324984770deabd5cf28e92c2993f1cc26a0d1a7fc14fa323254711330
font_02_sfnt_off0000e328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE328 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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