Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ff22e6fa955476f…

MALICIOUS

PDF

42.0 KB Created: 2020-08-10 20:56:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da22680b9248d3b19b48f0fc3630b57b SHA-1: 81397fcb488d2d533bf353b4b812f1bfdc20ee8b SHA-256: 9ff22e6fa955476f0063b3957430c7e01e06dc5aef1653a21973d83677c70f43
194 Risk Score

Malware Insights

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

The PDF contains embedded links that lead to a redirector hosted on 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a lure related to '5 star hotel brochure design pdf'. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=5+star+hotel+brochure+design+pdf In PDF document text
    • http://files.camphillvillage5k.org/uploads/1/3/1/4/131407823/defawaralejovokaje.pdfIn PDF document text
    • http://files.flowphoto-tahoe.com/uploads/1/3/2/3/132302941/fogalunomitax.pdfIn PDF document text
    • http://files.champsfleuris.com/uploads/1/3/1/4/131453056/divujinananir.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/1/0435/7108/5475/files/10492856100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3206/7739/files/zopiwirepubaxal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0546/7035/files/88205637219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/gukivajedexituna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4286/4289/files/xebefefenowusodeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/jelakulabugogave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9901/2766/files/adobe_editor_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0049/5260/files/57778531108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/vadilulerekifaviwip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/60986813971.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 7

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_off00006634.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6634 5584 bytes
SHA-256: 6413898fd1a266cffc15ab8764822627eb7abc4c33df59ac629b8bea4f0d96bf
font_01_sfnt_off00007925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7925 10152 bytes
SHA-256: 5cd976600e5d269c770f9dad2bf9342cfe531152769d100bb61a437b1a2f306f

Open this report in the interactive analyzer, or submit your own file for analysis.