Malicious PDF — malware analysis report

Static analysis result for SHA-256 add07d2b0e721a8d…

MALICIOUS

PDF

79.0 KB Created: 2020-08-17 15:00:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5556f054cfdbb830969670dd9543aa68 SHA-1: 2ce5c16969a2c19e57c792e1706be2fea9f9e247 SHA-256: add07d2b0e721a8dd092f0336dce23af999c5c46702fcf5607b71cf61e8cc0bd
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=acid+rain+full+information'. This URL is presented within the document body, suggesting a social engineering lure. The file also exhibits characteristics of a link farm, with numerous external PDF links, indicating an attempt to distribute content or traffic. The primary attack vector appears to be directing users to malicious infrastructure.

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.cc/pify?keyword=acid+rain+full+information In PDF document text
    • http://files.shamrockhavenpublishing.com/uploads/1/3/2/6/132680808/vedeba.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/1/0438/4587/7922/files/free_vintage_floral_border_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84574839703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/engine_assembly_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6296/5912/files/15495355874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1560/1319/files/ruwawikuxopokazufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8057/2321/files/zoo_animals_clipart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0210/0899/files/palmistry_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0282/9734/files/rorijax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/midawabixejumavewixag.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE458 4976 bytes
SHA-256: c5a674d186cfd8fd258bd25c0610bfbe04fc4c79b64902c88f9172ac7944fd76
font_01_sfnt_off0000f51e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF51E 10800 bytes
SHA-256: f02f199b22c3191437b7393b1ac1500c89117ad56d052c9de63bed2684326045
font_02_sfnt_off00011a0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A0D 16100 bytes
SHA-256: e8be64a599b4775abf69106d1ea2a605297721d8ccc8071fb3d67c702b09cfa6

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