Malicious PDF — malware analysis report

Static analysis result for SHA-256 a126d803f8f3384e…

MALICIOUS

PDF

55.7 KB Created: 2020-08-01 05:06:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dfa5ae6c24b34064b9a7e6d76ad776fc SHA-1: 1e61fcfd410860e5a8cf1ce471d17b6ddea07247 SHA-256: a126d803f8f3384ef951b7d47dc406dd8fde668a8afc696259d29e81ce8a0aa0
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a lure for a 'free blueprint maker' and embeds multiple links, including one pointing to a known malicious redirector. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates a social-engineering tactic to trick users into installing software or visiting malicious sites. The presence of numerous PDF links, many hosted on Shopify, suggests a link farm designed to distribute malicious content or traffic. The primary malicious IOC is the redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.cc/pify?keyword=free+blueprint+maker In PDF document text
    • http://files.selahjewelrydesign.com/uploads/1/3/0/7/130739557/jawodekokaruv-sunise.pdfIn PDF document text
    • http://files.instantcleaningservice.com/uploads/1/3/0/8/130874582/4811756.pdfIn PDF document text
    • http://files.you-turn-drug-docket.org/uploads/1/3/1/0/131071117/91e948d97.pdfIn PDF document text
    • http://files.neebz.net/uploads/1/3/0/7/130775172/09f1a5d9c.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/1/0431/6289/4498/files/89325946415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6855/5415/files/leteravelunufupuwolivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4413/4294/files/mokusegopimexegolexuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2670/2758/files/wokutofexowanerodumedad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1916/6119/files/bipomaniwojuwadukimim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7808/9878/files/minuvafomesexizozijibom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4790/2629/files/23953846013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dutevitijenunolekegek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/kusorobuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6405/6225/files/79664977215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8348/9690/files/87078064265.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_off00009dc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DC8 4944 bytes
SHA-256: 163f039d155208e5b4bff9998470c1c4e08eb38bc415c334fe335d6ecd9b2640
font_01_sfnt_off0000ae80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE80 10392 bytes
SHA-256: edc6714cc48eccd0ada2dacb88a0d63c5a6fa3e885542860d5504f4ed877e7ba

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