MALICIOUS
152
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 indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to a book summary and the URL that triggered the malicious redirector. The presence of a link farm within the PDF further supports the malicious intent of directing users to external, potentially harmful, content.
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=hard+thing+about+hard+things+book+summary
- http://namedofi.vanforum.org/uploads/1/3/2/6/132681812/c1fc66b0a4.pdf
- http://files.autumnselover.com/uploads/1/3/1/4/131406412/gakixuwujotorep-pemobudir-pipaka-xobomifiwozogi.pdf
- https://cdn.shopify.com/s/files/1/0461/9862/0323/files/kujelixuzidalufusemowowu.pdf
- https://cdn.shopify.com/s/files/1/0433/9544/8999/files/bebefava.pdf
- https://cdn.shopify.com/s/files/1/0432/6676/9051/files/jolujijur.pdf
- https://cdn.shopify.com/s/files/1/0434/5197/3789/files/13125132587.pdf
- https://cdn.shopify.com/s/files/1/0461/8895/3751/files/kitten_feeding_guide_bottle.pdf
- https://cdn.shopify.com/s/files/1/0440/5365/9798/files/91493039382.pdf
- https://cdn.shopify.com/s/files/1/0448/9651/8299/files/wordly_wise_3000_book_8_lesson_8.pdf
- https://cdn.shopify.com/s/files/1/0433/7028/3173/files/90805824937.pdf
- https://cdn.shopify.com/s/files/1/0433/9171/3447/files/41880912281.pdf
- https://cdn.shopify.com/s/files/1/0434/2136/8472/files/astrix_et_la_surprise_de_csar_stre.pdf
- https://cdn.shopify.com/s/files/1/0437/6775/8999/files/hashimoto_thyroiditis_guidelines.pdf
- https://cdn.shopify.com/s/files/1/0437/9138/4736/files/74139076931.pdf
- https://cdn.shopify.com/s/files/1/0435/1731/3178/files/sudulomesivoxepefono.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_off0000793c.bin1c6b4d2a7e391c8f6d687642497fc0476fb892a48697dc5b4e360d8ca6cb42f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x793C | 5476 bytes |
font_01_sfnt_off00008bac.bind7722cc8c875c01585e392b5c92ac0ca460a0f0e22b3da4a8b54e7dac7711f0d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BAC | 10204 bytes |
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