MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a mass external link farm, with one link pointing to a known malicious redirector. The document body text, though garbled, includes the target URL and suggests a lure for downloading a user guide. The heuristic 'SE_MFA_LURE' indicates the ultimate goal is likely credential harvesting or MFA abuse.
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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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=apple+watch+4+user+guide+pdf+download In PDF document text
- http://files.estellejorgensen.com/uploads/1/3/1/8/131871586/kuruba.pdfIn PDF document text
- http://files.flareenterprises.net/uploads/1/3/1/6/131606193/mabananiduj_kevejememigix_gakuxi_vimosudigol.pdfIn PDF document text
- http://files.proyecto1867.com/uploads/1/3/2/3/132302913/mozolejemi-vexiramiga-leselu.pdfIn PDF document text
- http://files.brendanhunt.com/uploads/1/3/1/4/131453144/8320131.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/1/0431/7410/1160/files/diganik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1339/7924/files/bobuweranuvafuguxoti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7799/9519/files/63042109653.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2338/5247/files/rikajipefedume.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0600/0282/files/nitro_reader_64.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3635/9326/files/tree_little_alchemy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3504/1693/files/95293048875.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0928/6042/files/xerokifafi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8758/4677/files/piwesafafokafadeserupifi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7922/8837/files/bulovevusidanev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8611/1137/files/42228906689.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5598/6326/files/rachmaninoff_paganini_rhapsody_18th_variation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1141/4939/files/pizumevogirufojemaris.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_off00007673.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7673 | 5588 bytes |
SHA-256: aeba9084e31a09cab3ea136654c49e36bdcd62f7531dcb304a5fbfe14fd04933 |
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font_01_sfnt_off0000898d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x898D | 10052 bytes |
SHA-256: e8bf76d63a0031dc75cdb122260fceb3cde498901de3309b6f4e1087dcb22068 |
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