MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, including one pointing to a known malicious redirector (ttraff.ru). The document body, though heavily obfuscated, contains text that appears to be a lure for a textbook PDF. The ML classifier strongly indicated maliciousness, and the presence of multiple external links suggests an attempt to redirect users to malicious content or download further payloads.
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.ru/pify?keyword=enduring+vision+apush+textbook+pdf
- http://wogulukes.susannahnix.com/uploads/1/3/1/4/131452988/nudixowonij.pdf
- http://files.zanyunoodles.com/uploads/1/3/0/7/130739381/sikete-wemotuta.pdf
- http://files.offthehookkiteboarding.com/uploads/1/3/0/7/130740055/nutopavolasuran.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/5259/6374/files/13788873729.pdf
- https://cdn.shopify.com/s/files/1/0437/5173/5448/files/53192696919.pdf
- https://cdn.shopify.com/s/files/1/0429/2119/7724/files/fedotevezuzufobepewuj.pdf
- https://cdn.shopify.com/s/files/1/0427/6633/6167/files/30795512813.pdf
- https://cdn.shopify.com/s/files/1/0432/0080/7070/files/mobutezuvusulozizif.pdf
- https://cdn.shopify.com/s/files/1/0434/1792/7837/files/46302617018.pdf
- https://cdn.shopify.com/s/files/1/0428/0510/0707/files/95971446075.pdf
- https://cdn.shopify.com/s/files/1/0432/5041/7827/files/gideripeloduze.pdf
- https://cdn.shopify.com/s/files/1/0429/2263/9527/files/31438629609.pdf
- https://cdn.shopify.com/s/files/1/0429/8578/3447/files/kegazusuvigutolow.pdf
- https://cdn.shopify.com/s/files/1/0432/8102/3132/files/6241334294.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/befuxaj.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00009ac8.bin5e53d1b729283c8435d7e4b3d4085f2f73041906f9e7453dd9e8d8d0b2a365e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AC8 | 5560 bytes |
font_01_sfnt_off0000adb6.bin9ad526de71042e02a1f909db0ce70f34a35883b3e74795c025f52263b21ace84 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADB6 | 13112 bytes |
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