Malicious PDF — malware analysis report

Static analysis result for SHA-256 0970834774d977e4…

MALICIOUS

PDF

42.3 KB Created: 2020-09-19 11:44:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f03a7956353a5c9a379045abe87e708f SHA-1: f73d88d45f45d5f769326b5819ec02e910a1df24 SHA-256: 0970834774d977e4e8b09a696384073f73f62d1d65977c9b2cf0b75e2c752c68
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links, including one pointing to known malicious redirector infrastructure. The document body and heuristics indicate a lure for free downloads, which is a common tactic for phishing or distributing further malware. The ML classifier strongly supports the malicious verdict.

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.me/wix?keyword=greely+high+school+staff In PDF document text
    • http://tupez.diamondhomes.net/uploads/1/3/1/3/131384609/3380089.pdfIn PDF document text
    • http://naremigig.yogalikewater.com/uploads/1/3/0/9/130970003/6cf796f3.pdfIn PDF document text
    • http://files.arookandachariot.com/uploads/1/3/1/4/131410479/bivexokik.pdfIn PDF document text
    • http://files.gassingamerica.com/uploads/1/3/1/4/131452958/vopixezixasuv-vexole-zamepu.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/1/0481/5663/9381/files/free_modded_accounts_xbox_360_gta_5_email_and_password.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8561/7570/files/sototiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1657/6424/files/52031072637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9007/4016/files/international_cricket_captain_2019_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0826/1276/files/imperatives_english_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3474/6781/files/economic_freedom_of_the_world_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6640/9639/files/agricultural_science_grade_12_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0468/0302/6071/files/tofafuvev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4674/7803/files/catchers_mod_apk_hack_download.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_off00006632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6632 5276 bytes
SHA-256: da292c34e114e4249d76ecb21e351e6abade0dfabb0d12e998b458db31440b4a
font_01_sfnt_off00007833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7833 10696 bytes
SHA-256: 63cb0e1820d0f8c6329435c79141140e410801882fabecf602f4e9d607b1ee3d

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