Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8a7b7e997741fe9…

MALICIOUS

PDF

43.4 KB Created: 2020-08-24 00:51:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07623e1d91a41c222014ae16d0e5e5d0 SHA-1: 6cb9349b01c9e82895ac2d910ad5136c9c076a9e SHA-256: e8a7b7e997741fe9830546d5255e0a06a5de3694fe0d8f3d7be635ea669e1777
214 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains this same URL and also references 'callable bond pricing pdf', suggesting a lure. The PDF also exhibits a link farm heuristic, with numerous links to Shopify-hosted PDFs, one of which is the primary IOC. No scripts were extracted from this sample.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=callable+bond+pricing+pdf In PDF document text
    • http://files.gbcoa.ca/uploads/1/3/1/3/131381363/kipowes.pdfIn PDF document text
    • http://gazitoxek.richfeenstra.com/uploads/1/3/1/4/131454215/soxewedulu_xunoromurato.pdfIn PDF document text
    • http://files.bronzeleonleonbergers.com/uploads/1/3/1/4/131406510/1ad4ce989b4.pdfIn PDF document text
    • http://nonobagox.i-tee.org/uploads/1/3/2/6/132682883/bowuvatuna_xemije_mizilig_pujumix.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/1/0431/5699/6247/files/analysis_of_algorithm_lecture_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7039/6318/files/52652714112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/pudaduxozupikixawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8734/5304/files/8402958634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7223/3380/files/fatca_reporting_1_ffi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/browser_ringan_buat_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/90427974544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9957/8773/files/menijegoruli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5801/1035/files/clinical_psychology_journal_articles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0471/4404/files/domamozaxipa.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_off00006a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A85 5192 bytes
SHA-256: 78b7a90a1396a11f5983752bad017daba8754ed63f4a32fed1f25a47d6f8ca4a
font_01_sfnt_off00007c35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C35 10860 bytes
SHA-256: 212fcfe68a44128dc91ace1c2931081456d28368194564b6a5d903fb72b75a0b

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