Malicious PDF — malware analysis report

Static analysis result for SHA-256 cad67b9c85acb7d5…

MALICIOUS

PDF

38.4 KB Created: 2020-08-20 05:59:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c48b3468e9e0507f8e94527c577770b SHA-1: a0e03efe948ac3bd59933f0bb32df92edda0abf3 SHA-256: cad67b9c85acb7d50d3b43feec1a5b2e636dd2f7ae4c9a060cbc92c1dd78fd90
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=hd+wallpaper+nature+new'. The document body suggests a lure for 'Hd wallpaper nature new', indicating a social engineering attempt to drive traffic to malicious infrastructure. The presence of a link farm heuristic further supports the malicious intent of distributing links to potentially harmful content.

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=hd+wallpaper+nature+new In PDF document text
    • http://nijad.covenantlutheran.com/uploads/1/3/1/4/131453416/vogaxogibe_satumumajew.pdfIn PDF document text
    • http://files.automobiliabybuck.com/uploads/1/3/1/6/131607029/metutozigami.pdfIn PDF document text
    • http://files.jacquelinetopakian.com/uploads/1/3/1/0/131069961/fobojexaje_ximixino_koziditef_rokivif.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/1/0431/0204/4316/files/gijusidubiwivodesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3040/3477/files/44872431769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/97181443988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9186/1412/files/tudozowaxil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4446/8898/files/pogomeriwaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8315/9957/files/jezavevow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1887/8117/files/5758231450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5654/0317/files/sslc_english_synonyms_and_antonyms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0948/2658/files/gasobatavowenozasavebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/gulikix.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
🗂 Part of campaign: automobiliabybuck.com 7 samples

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_off00005a08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A08 4828 bytes
SHA-256: 6e511ff3f9912d3c95c39f8e5e90d001b9cfdbb39569be7354db0b93c10bfa2e
font_01_sfnt_off00006a92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A92 10196 bytes
SHA-256: 894e588c10538a2f2105d521c853701005cb570de8700de8c1246b768aad2736

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