MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file exhibits characteristics of a link farm, embedding numerous external links to other PDF documents. One of these links, 'https://ttraff.cc/pify?keyword=formal+and+informal+email+writing+examples+pdf', is identified as a known malicious redirector. This suggests the document is part of a campaign to lure users to malicious sites, likely for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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/pify?keyword=formal+and+informal+email+writing+examples+pdf
- http://files.undergroundcomedyfest.com/uploads/1/3/0/8/130814234/582a1a69.pdf
- http://files.captureourlife.com/uploads/1/3/0/8/130874683/gasamegevepato.pdf
- http://files.gwynethjanepage.com/uploads/1/3/1/6/131637219/mitapozubododuv.pdf
- https://cdn.shopify.com/s/files/1/0427/9340/2534/files/wezavugewo.pdf
- https://cdn.shopify.com/s/files/1/0431/3799/0805/files/cost_accounting_meaning.pdf
- https://cdn.shopify.com/s/files/1/0430/3912/9751/files/anatomy_of_cerebral_cortex.pdf
- https://cdn.shopify.com/s/files/1/0432/5359/6310/files/51532770374.pdf
- https://cdn.shopify.com/s/files/1/0438/6550/5952/files/anestesia_regional_definicion.pdf
- https://cdn.shopify.com/s/files/1/0433/9820/1502/files/20338725516.pdf
- https://cdn.shopify.com/s/files/1/0434/2490/7414/files/sumizuvepanupudopomarazi.pdf
- https://cdn.shopify.com/s/files/1/0430/4915/6757/files/26950978328.pdf
- https://cdn.shopify.com/s/files/1/0430/1219/4463/files/murofedurakerufixerujiru.pdf
- https://cdn.shopify.com/s/files/1/0431/8475/0747/files/luxowowike.pdf
- https://cdn.shopify.com/s/files/1/0432/2381/0203/files/fezuxezejakekaxosoji.pdf
- https://cdn.shopify.com/s/files/1/0431/2681/6932/files/nowimibutixomoz.pdf
- https://cdn.shopify.com/s/files/1/0432/8289/0918/files/24910431698.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000064f5.binf9ba5d2e7ccaa812e072a520928ea748972d418fbfa9837ceee3fe6676d421e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64F5 | 5476 bytes |
font_01_sfnt_off0000779c.binf919188ca892d7f2d4f68126e0121bee09ce49e6d7269be2a83b9b8417d49f41 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x779C | 10072 bytes |
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