MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded links, with at least one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains references to URLs that are part of a link farm designed to manipulate search engine results. This suggests the primary purpose is to lure users to malicious sites.
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=architectural+thesis+book+pdf
- http://dibat.thelostblonde.com/uploads/1/3/1/3/131383648/128ad63a4de4e04.pdf
- http://files.marlboroughcoop.org/uploads/1/3/2/3/132303310/8011606.pdf
- http://gosumelub.cardenarborview.org/uploads/1/3/2/8/132814930/subapukivona-gabarunuzekigu-jelatikazipulu.pdf
- http://files.detailsstrategicadvisors.com/uploads/1/3/0/7/130776682/gawunexix.pdf
- http://files.bargeshareforsale.com/uploads/1/3/1/6/131607027/juzivas.pdf
- https://cdn.shopify.com/s/files/1/0431/5663/5816/files/64991880084.pdf
- https://cdn.shopify.com/s/files/1/0433/4111/9653/files/filevu.pdf
- https://cdn.shopify.com/s/files/1/0434/0780/2531/files/8035324002.pdf
- https://cdn.shopify.com/s/files/1/0428/3521/4503/files/votekibetajo.pdf
- https://cdn.shopify.com/s/files/1/0429/9853/0202/files/31550737770.pdf
- https://cdn.shopify.com/s/files/1/0434/0622/9654/files/84700401698.pdf
- https://cdn.shopify.com/s/files/1/0427/7954/1671/files/31397987440.pdf
- https://cdn.shopify.com/s/files/1/0447/9238/1589/files/82629161783.pdf
- https://cdn.shopify.com/s/files/1/0432/1725/6603/files/caccia_al_tesoro_indovinelli.pdf
- https://cdn.shopify.com/s/files/1/0434/3152/6557/files/44626595282.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000069c6.binbbbedda614337907c131d7a0cb6f3ea09031917296165bd8357b6ccee4e6a5e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69C6 | 5212 bytes |
font_01_sfnt_off00007b83.bin8ea60f41632e99cde29bcdcb29e63a6e422fc5e1e260093ecd9ec48e0da48961 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B83 | 10368 bytes |
font_02_sfnt_off00009eb4.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9EB4 | 4324 bytes |
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