Malicious PDF — malware analysis report

Static analysis result for SHA-256 f18883da3615eebf…

MALICIOUS

PDF

35.3 KB Created: 2020-08-19 08:40:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 98c9d095848fcf4f6180f1c91ce3d8b2 SHA-1: 4dd5e473ef2d2817850b4f7caa6c27532605c3ca SHA-256: f18883da3615eebf591fe72cf9b76f27f6533ae34462a2d07698c4da322f3110
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the embedded URLs, 'https://ttraff.ru/pify?keyword=carrabelle+fl+surf+report', is flagged as a malicious redirector. The presence of numerous links to external PDFs, including this malicious one, suggests an attempt to lure users to potentially harmful content or to manipulate search engine rankings. No scripts were extracted, and the document body contained mostly binary data and some metadata, making the analysis primarily reliant on the embedded link heuristics.

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.ru/pify?keyword=carrabelle+fl+surf+report In PDF document text
    • http://files.prettyfckingawesome.com/uploads/1/3/1/1/131163833/4f823cfc96196.pdfIn PDF document text
    • http://sisewexab.alpost24.org/uploads/1/3/1/4/131406390/minadas.pdfIn PDF document text
    • http://files.allthatglitterscompany.com/uploads/1/3/0/7/130739789/634e7e.pdfIn PDF document text
    • http://files.wildeaboutexploring.com/uploads/1/3/1/4/131407135/80581.pdfIn PDF document text
    • http://files.maplesweet.ca/uploads/1/3/0/8/130874422/xujififesoza.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/1/0429/1851/0745/files/mavasiwifow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/0670/0183/files/reliability_of_research_instruments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5496/3617/files/6712730439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5196/4830/files/aiag_vda_fmea_handbook_2020_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5339/0743/files/danogumed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3797/2897/files/39449838134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/vujikefaximanivimopuril.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8651/9197/files/tga_to_jpg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1818/1013/files/fiwegelumajavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/pefoboveg.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CBB 4940 bytes
SHA-256: 495849dc755e7fdcb3bee61d827fe572fad33e77a2b20b1a063bc7d27ded2cfb
font_01_sfnt_off00005d93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D93 10264 bytes
SHA-256: 06fb7fa85a5ff10afedff206e0903fe5669782951cdb82f960f47eaeb02144d6

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