MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'Ab initio etl training material'. The presence of a link farm and a callback phishing lure further supports a scam or phishing intent. The primary malicious IOC is the redirector URL.
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.ru/pify?keyword=ab+initio+etl+training+material+pdf In PDF document text
- http://files.ncmusictherapy.org/uploads/1/3/1/0/131070051/fipexuvelororej_juguliretafino_wokamewixa_gitirarijam.pdfIn PDF document text
- http://files.jamesalanconlan.org/uploads/1/3/1/6/131637038/a5cb99a6d6d1.pdfIn PDF document text
- http://files.masonphall.net/uploads/1/3/1/3/131380171/ee8f9d7.pdfIn PDF document text
- http://files.missionschurchorlando.com/uploads/1/3/0/9/130969313/6d545c1b873.pdfIn PDF document text
- http://files.travelsinacab.com/uploads/1/3/1/3/131384113/lazanizakowomuse.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/1/0432/9875/0629/files/vijigogalasisibezunikug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9359/9132/files/84359105527.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2853/7753/files/5002563597.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6513/0660/files/boximawidijetama.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4982/9023/files/55095135633.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4664/8473/files/85871180416.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1234/8315/files/10585151022.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6471/1575/files/97376653320.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4356/8278/files/18278910925.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bijalikupuxamimidesedol.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000857c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x857C | 5100 bytes |
SHA-256: b615654a60a15668419b991de715c31789edf7dfd1be2bb33f842937c9e0c69b |
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font_01_sfnt_off000096ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96AC | 10868 bytes |
SHA-256: 3d5a9bfb5afd3f096c18cb2e73e352d13ca9d968e0d2812cc67d6a331ff21689 |
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font_02_sfnt_off0000bbfb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBFB | 16164 bytes |
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6 |
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