Malicious PDF — malware analysis report

Static analysis result for SHA-256 6982b4fcaac6eeca…

MALICIOUS

PDF

66.7 KB Created: 2020-08-13 23:18:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3c47e969b31d0f2fe0fe614e4def3b54 SHA-1: ad64919e7d1783ff144cb056d82628a8456107f7 SHA-256: 6982b4fcaac6eecac34c14f8e0f1305be66ecf3fc36ff5c47d2fed1fbdbfed09
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a prominent link to 'ttraff.com'. The document body, though heavily obfuscated, contains a reference to the same URL, suggesting it's the primary lure. The ML classifier strongly supports maliciousness. The presence of embedded JavaScript, though not directly analyzed for specific actions, is often used in PDFs to facilitate redirection or exploit execution.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=chspe+secrets+study+guide In PDF document text
    • http://files.virtualhealthcarenyc.com/uploads/1/3/1/6/131606674/mamotewijedul.pdfIn PDF document text
    • http://gijuv.mccullycomfort.com/uploads/1/3/2/7/132740405/7277003.pdfIn PDF document text
    • http://files.ccepotomac.org/uploads/1/3/0/8/130874238/benefiw.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/1/0432/2865/9870/files/66278674750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/kadambari_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2591/4277/files/likadumir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7985/files/46198683777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2106/3576/files/valudosuxedulalakujiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/61990024160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/13536281225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2677/5196/files/dojowinajafaxubowojanore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/74423192712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2178/5498/files/werugagorojetubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7549/3271/files/32610207704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2360/4631/files/mibef.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_off0000c868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC868 5100 bytes
SHA-256: 1de681ad3b0f711b2388e1c2d76f4903e9836620cb8ca27daad28bd06927ba31
font_01_sfnt_off0000d9c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9C8 10476 bytes
SHA-256: bca315bc327caa17eb8da880e51697416a67cc8dd79b7831ec6113766c97f4ee