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 critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=borland+c+builder+4.+5'. Additionally, it features a PDF link farm heuristic, with the first URL being 'https://cdn.shopify.com/s/files/1/0432/9730/8840/files/xanuxorinefiba.pdf'. The document body, though heavily obfuscated, contains fragments of these URLs. The presence of a callback phishing lure heuristic further suggests a social engineering attempt to trick the user into interacting with malicious content.
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=borland+c+builder+4.+5 In PDF document text
- http://kutowu.vellusandterminal.com/uploads/1/3/1/3/131383965/29c817cf5330fb.pdfIn PDF document text
- http://jefab.fitkitchenph.com/uploads/1/3/1/4/131454035/4458989.pdfIn PDF document text
- http://files.vkdistributors.co.za/uploads/1/3/1/6/131637606/vuxifedozagoso.pdfIn PDF document text
- http://dejawoju.stephanieflear.com/uploads/1/3/0/9/130969352/wuwujuxewovumutagid.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0432/9730/8840/files/xanuxorinefiba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1089/1682/files/meningoencephalitis_adalah.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9143/5422/files/download_cyder_for_iphone.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4016/2470/files/69778279840.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2799/6565/files/basin_street_blues_guitar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0175/6323/files/71580810127.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8466/1414/files/dumunopuxesa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1434/9219/files/10205681562.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0734/3779/files/58011085027.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0435/3956/files/metodo_descriptivo_definicion.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4041/6678/files/falanoliwuxukekonikuf.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008792.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8792 | 4988 bytes |
SHA-256: 719f39afdfe28d1fcdfb8ee123d0fa9b3a8b612453023b7ba8f65ae6c5a67e02 |
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font_01_sfnt_off0000988c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x988C | 10132 bytes |
SHA-256: 2764a3c9039ae78a79d436f5c22b5cc8a0434f8869c79492baea8306f24d3191 |
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font_02_sfnt_off0000bb49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB49 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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