Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f68a79857426c28…

MALICIOUS

PDF

40.5 KB Created: 2020-08-06 18:50:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f4b65339349a36ddcb0744e5bd5adaa SHA-1: ade8e6d922ee9c3aad0c15f1f95358ac38ae6fb7 SHA-256: 8f68a79857426c28e97fc643a886c1005f71482209ad0d93b126d5cb574ab006
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=certification+of+employment+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to improve search engine ranking for malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the payload.

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=certification+of+employment+pdf In PDF document text
    • http://files.tritongymwear.com/uploads/1/3/1/4/131407802/3d85aeb9809.pdfIn PDF document text
    • http://wipijinoj.rjcmindworks.com/uploads/1/3/0/7/130776031/wezusi-setorexuwevigef.pdfIn PDF document text
    • http://files.suemcphee.nz/uploads/1/3/2/6/132695408/zotopozak_jomuroxetekarub_kasatoz.pdfIn PDF document text
    • http://files.bealegacybuilder.com/uploads/1/3/0/7/130775350/1501f.pdfIn PDF document text
    • http://files.emilygilldesigns.com/uploads/1/3/1/1/131164386/gikurotevamedok_fotix.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/1/0432/6418/0390/files/minecraft_server_status_html.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7494/5184/files/voicemeeter_and_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7956/4448/files/tinulewoxapopibifapup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/47855437022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6495/8879/files/drupal_8_form_api.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82505274200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2078/7613/files/61060445062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6555/7671/files/muwatuxukuwufuvediwomevel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4159/0170/files/activity_coefficient.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1838/6588/files/bapimamelumufonatude.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_off00006195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6195 5132 bytes
SHA-256: 034d0d3b6f0562f41c9d9dd24f774426e0288451cacdcc927137eed795a78f3b
font_01_sfnt_off000072fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72FD 10080 bytes
SHA-256: 947842bddb783bfe065f4507d07468653817f8bbd39334f5c723f7613672952b

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