Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3aa4abf180e14ee…

MALICIOUS

PDF

44.4 KB Created: 2020-08-24 10:33:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d2b2dc8916b24a5667ed9ec16c5c0a7 SHA-1: dceb60d7e3bb6e74c6e1a3c92662f196f58a6187 SHA-256: c3aa4abf180e14ee6b38147a4c3b751dfbef3b7aae3260711338f76f4fe5a75d
234 Risk Score

Malware Insights

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

The PDF contains a link disguised as content related to an 'Android emulator for PC'. This link, found at https://ttraff.com/pify?keyword=android+emulator+for+pc+android+6.+0, redirects to known malicious infrastructure. The document also includes a large number of links to PDFs hosted on Shopify, likely part of an SEO link farm to obscure the malicious redirector. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document's intent is to trick the user into installing something, which is a common tactic for malware delivery.

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.com/pify?keyword=android+emulator+for+pc+android+6.+0 In PDF document text
    • http://files.kevmarv.com/uploads/1/3/2/6/132681342/4392802.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/1/0429/8866/7034/files/xurebex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3573/7755/files/alodia_nebres_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1298/8821/files/bbc_english_book_class_12_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/2906/1783/files/palufivinezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/tumufofemedexewubixosev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/tokotatulokanividaxexidos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2163/7544/files/minna_no_nihongo_1_answer_booklet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/lujakalidisigipatokuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1799/3366/files/18430686375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8001/5262/files/taforejunusepofoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/24591748607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/wrc_107.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 2

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_off00006efa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EFA 5440 bytes
SHA-256: 32cecebd384800f8d34dae8576a0a510b9819f829c6e7abcd322ab837f98a49f
font_01_sfnt_off0000815e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x815E 10196 bytes
SHA-256: 01508fa203d4faa2a1a3eb25cde09c2b24230719f27c3e382f2cec7def2b80ca

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