Malicious PDF — malware analysis report

Static analysis result for SHA-256 7087709ed90e5c73…

MALICIOUS

PDF

38.5 KB Created: 2020-08-06 16:02:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 08abd8dd8cd7335753370c33bb74bd2c SHA-1: 47eb4cd595df1614d80cc0e84da0d6affc1b98bc SHA-256: 7087709ed90e5c73b88632f9024003eda3cba60a935abef587400a7449cd6ed7
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains the same lure text and URLs, suggesting an attempt to trick users into clicking through to malicious content. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent, likely to lead the user to a phishing page or further malware.

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=artificial+intelligence+course+pdf In PDF document text
    • http://files.mineheadbarbarians.co.uk/uploads/1/3/1/4/131437766/703ba23eae8a4bd.pdfIn PDF document text
    • http://files.promaxpowersports.com/uploads/1/3/0/8/130814652/3ffa42eb58aa.pdfIn PDF document text
    • http://files.whatsanoptician.com/uploads/1/3/1/4/131437984/5f66816abe9f765.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/1/0431/4939/4080/files/18299611641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5684/0350/files/wuzesezamadejazataji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8529/1937/files/mivasusowunuruzojomujidon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5430/9284/files/add_text_to_microsoft_edge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/jawos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8601/5640/files/alchemy_rory_sutherland.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6101/0842/files/39430300767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/liwukepurenugiweda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6268/8918/files/catabolismo_del_grupo_hemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/96904911707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/27835964071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0857/9993/files/susinesisawotuwur.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000574a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x574A 5312 bytes
SHA-256: 8fce3e759ed96f6f82e6017f9d9447ec37acddf94b55f665c9b91e44a560bf61
font_01_sfnt_off0000696b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x696B 10480 bytes
SHA-256: bc4924588d1041f70be9f2cf057977cb38c1e9f0548d934a375e1b47650df9cf