Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c6e27eff1623813…

MALICIOUS

PDF

45.1 KB Created: 2020-08-11 17:32:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a7cbaf9e8539067951e6c7460a3e0e4e SHA-1: 64d3acc87dc566921130dafcef786d5786c3e79d SHA-256: 3c6e27eff1623813fdf75061363429290ca456b81b25b7b45451d83a49008d97
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains a URL that matches this redirector. The presence of a link farm and a callback lure suggests a phishing or scam attempt. The primary malicious link identified is https://ttraff.com/pify?keyword=bartok+mikrokosmos+5+pdf.

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.com/pify?keyword=bartok+mikrokosmos+5+pdf In PDF document text
    • http://xivuzuw.westfieldkitchentour.com/uploads/1/3/0/8/130813765/5867952.pdfIn PDF document text
    • http://files.rebeccalindell.com/uploads/1/3/1/4/131407802/rolelezosubaz-nenega-bekumofugeraze.pdfIn PDF document text
    • http://dovamip.modicash.nl/uploads/1/3/1/1/131163667/e41ae911a30d.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/1/0431/9500/7137/files/jomowemenexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/sodobabaginanurexixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0800/7072/files/62899829069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4277/4938/files/bonaventure_cemetery_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/tagisanemadexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8076/2023/files/gitemiviligikupose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4659/0872/files/schwartz_absite_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9200/9365/files/39494293944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2496/3990/files/calendario_2020_ottobre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7478/9281/files/32084602486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2122/1539/files/algebra_1_graphing_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/59313535394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9313/6294/files/wavelet_neural_network.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D77 5392 bytes
SHA-256: 33aabd9acb3d4bd4cccf75b2be95e3213d8e9794a5dd716353f18a170c122e1f
font_01_sfnt_off00006fb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB9 9876 bytes
SHA-256: 0fe9d17817def5f38b8a81c3eb6716d8a933c634ef5559735990579f24fe3f86
font_02_sfnt_off000091c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91C9 16120 bytes
SHA-256: fb7b45e24c28c4473d0ca1c6410c593992d9a809009f9c41b5ae32c9142507dd