Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c0d442273d72422…

MALICIOUS

PDF

43.8 KB Created: 2020-08-19 01:47:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 206bc4fa0572a01fed3bc050f475825e SHA-1: 24749e289e4f5c0d547df6235dc9a7f0334a175d SHA-256: 9c0d442273d72422c16472d02d07874e4066900965998ce355c63c38d8ead023
234 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=emulator+android+untuk+linux+mint'. Additionally, it exhibits characteristics of a link farm, with numerous external PDF links hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains embedded URLs and suggests a social engineering lure to install a browser extension or update, which is a common method for malware delivery or credential theft.

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=emulator+android+untuk+linux+mint In PDF document text
    • http://files.dgcustomart.com/uploads/1/3/1/4/131414134/fe4ebb7a8286.pdfIn PDF document text
    • http://files.njmstudio.com/uploads/1/3/1/4/131437834/6042026.pdfIn PDF document text
    • http://womepiju.waimariehvcroquet.org/uploads/1/3/0/9/130969426/kumobaxad.pdfIn PDF document text
    • http://files.spiritualcoffee.ca/uploads/1/3/1/3/131398288/tibijinerufupa.pdfIn PDF document text
    • http://xabizedux.ready4success.com.au/uploads/1/3/1/0/131070374/witisem-kunol.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/1/0434/5741/3270/files/nafup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7835/2034/files/english_grammar_tense_tutorial_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7783/6702/files/48353060791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/bufupegozewadapogewukaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6555/7670/files/public_relations_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zevuwuvufotolotatagonisex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7902/3257/files/succession_planning_in_family_business.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1019/5605/files/34804896640.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 3

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_off00006dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEC 4880 bytes
SHA-256: 41f08818accde47ad77928888260706de76894da2fae2c90dd2fb1362aff52bd
font_01_sfnt_off00007e68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E68 10520 bytes
SHA-256: fe6d28527630723f48ef82bc01402a8a402cf3e7d067a542e0805144dd43e929

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