MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wb?keyword=cbc%20assessment%20rubrics%20pdf'. It also exhibits characteristics of a link farm, with numerous embedded URLs. The document body, though heavily obfuscated, suggests a lure related to 'cbc assessment rubrics pdf'. The presence of a callback phishing lure heuristic further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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/wb?keyword=cbc%20assessment%20rubrics%20pdf In PDF document text
- http://files.weiconsultants.com/uploads/1/3/1/1/131163684/witulazugakadulete.pdfIn PDF document text
- http://files.saffronsunhealingarts.com/uploads/1/3/0/9/130969811/2912223.pdfIn PDF document text
- http://files.coxevolab.org/uploads/1/3/1/3/131380733/b435077a189.pdfIn PDF document text
- http://files.iamnabia.com/uploads/1/3/2/6/132695332/7657862.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/1/0435/2871/6440/files/18232718288.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5933/9679/files/pevikujufogosoju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7447/7464/files/turuwifuganalagerolojuxaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fulefevizurosojasi.pdfIn PDF document text
- https://dakuxutilame.files.wordpress.com/2020/07/83252589186.pdfIn PDF document text
- https://sarekuxiwaz591622790.files.wordpress.com/2020/06/kutivaxateduridi.pdfIn PDF document text
- https://rudukaleditu308957543.files.wordpress.com/2020/06/7552647731.pdfIn PDF document text
- https://riwebaf.files.wordpress.com/2020/06/getejutulupoluniwomexop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3459/1907/files/33293429458.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0056/9753/files/97916528363.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7404/4579/files/vevixemab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72593533024.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3872/8611/files/38863249859.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0775/3888/files/wejozefi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3721/2319/files/68062662127.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5219/6249/files/lokag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1334/0312/files/57474735226.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c0a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C0A | 5204 bytes |
SHA-256: f10556f5859454a4b3480754407a0ba5ceb2ec8bf9278bf02bc81ff5ce9efe28 |
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font_01_sfnt_off00007d98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D98 | 14536 bytes |
SHA-256: 0820add442df8d78ef720b1d9b7b82382e0dc547f8792733ad6ec20138ff10ef |
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