Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b9c843c960f56f6…

MALICIOUS

PDF

37.3 KB Created: 2020-08-19 13:11:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: def31afcf072fa0e8e540ec954a108ec SHA-1: 2b627538a25bf0712fcd0f9f8846b662ca6e5bc1 SHA-256: 6b9c843c960f56f682aaf040a85b4d539157431292eed441f31ea7b32be6a25a
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that lead to a redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=lab+report+grignard+reaction`. This redirector is associated with malicious activity and likely serves as a lure to download further malicious content or phish for information. The document body, though partially obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous PDF links, many hosted on Shopify, suggests a link farm used for SEO poisoning to attract victims.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=lab+report+grignard+reaction In PDF document text
    • http://files.vickiaskew.com/uploads/1/3/1/3/131398085/2173766.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/1/0439/4038/0840/files/89821841494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/pm_awas_yojana_form_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8138/4604/files/luxeterod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6503/7220/files/blade_master_mod_apk_unlocked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5143/4652/files/ncert_class_12_accountancy_part_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1185/0918/files/19864858011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2650/5118/files/57477933763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6193/5261/files/35380124684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1306/3335/files/4778643602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4608/8349/files/try_catch_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5966/7363/files/sales_qualification_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5096/4904/files/oxigeno_y_radicales_libres.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/sacoche_longchamps_pas_cher.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_off00005570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5570 5112 bytes
SHA-256: 53d4ac9d26e19306e2195334b57d2939f460de601596432f427cec36687f5196
font_01_sfnt_off000066dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DC 9868 bytes
SHA-256: f8ae0166c323b7c86e66bdc6e91e18eea3cddbe7d2ab4f3a43a0873ce559063d

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