Malicious PDF — malware analysis report

Static analysis result for SHA-256 21b6b39590921e23…

MALICIOUS

PDF

51.9 KB Created: 2020-08-02 02:02:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d367b4ba53a88032a59e39b7a33f9d0 SHA-1: e522aed477056de2a34e9cb2dd4e8f306f4c7f8d SHA-256: 21b6b39590921e23fbd78faaacc5a9a4aefc8694cb44a80b674f389c5e6bf1ad
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, a technique often used in SEO poisoning or link farm attacks. One of the primary links, 'https://ttraff.com/pify?keyword=ffxi+gil+farming+2017', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting it is the intended destination. The presence of a link farm and a malicious redirector indicates a probable phishing or malware distribution attempt.

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.com/pify?keyword=ffxi+gil+farming+2017 In PDF document text
    • http://files.aubreymaejones.com/uploads/1/3/1/8/131871501/jamuv.pdfIn PDF document text
    • http://files.katieandnatey.com/uploads/1/3/0/7/130740325/juzigakegub-kidowelogixi.pdfIn PDF document text
    • http://files.heatherbeardsley.com/uploads/1/3/2/8/132815123/38ee75.pdfIn PDF document text
    • http://files.piasiren.com/uploads/1/3/1/4/131437295/vopup-ranivufuxumala.pdfIn PDF document text
    • http://files.safetyguystraining.com/uploads/1/3/0/7/130776183/bavupaxupij_nikelaxedug_laxiwax.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/1/0432/5844/5979/files/lukezinolovidibagabiwib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4632/9750/files/xemupafubakewojarafifeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9763/7535/files/19176597925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2207/3508/files/10402488358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/68128575221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1089/1680/files/59352764989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8523/4338/files/bejitofipojotejasana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tomazemajetel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/19587188239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1731/3178/files/xejopafikubujudutij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5675/1002/files/delugagupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8384/8093/files/how_to_uninstall_groove_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/75064380537.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 7

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_off00008c68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C68 5336 bytes
SHA-256: 52c29203aeb3ba1e6980dbb4e04c758754b0dc5be99baf9eff4de6d981596910
font_01_sfnt_off00009e94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E94 10524 bytes
SHA-256: 5c0fb7f4e0bf4b8ef4d8474ae99328ab2015002e751e1785a6ad07c1de0054dd

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