MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, with one critical heuristic identifying a redirector to malicious infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'business english pdf course'. The presence of a link farm and a redirector suggests an attempt to drive traffic to malicious sites, likely for further exploitation or phishing.
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.com/pify?keyword=business+english+pdf+course
- http://files.pacificcrestcomedy.com/uploads/1/3/1/4/131437157/ramugesenatedig_duparagaru_vavuxamife_lurimeze.pdf
- http://files.islandtrails.org/uploads/1/3/0/8/130874012/mebevu-wugixup-banosarevewu-mijig.pdf
- http://files.boydsbaseball.com/uploads/1/3/1/3/131381450/figekejeluro.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/6345/1560/files/piviwalesojeganej.pdf
- https://cdn.shopify.com/s/files/1/0439/0649/8728/files/rawuvewanuw.pdf
- https://cdn.shopify.com/s/files/1/0428/6195/3191/files/90630145645.pdf
- https://cdn.shopify.com/s/files/1/0435/1596/9688/files/89275908117.pdf
- https://cdn.shopify.com/s/files/1/0427/9091/2159/files/13745808720.pdf
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/98683155313.pdf
- https://cdn.shopify.com/s/files/1/0431/2511/2988/files/vufevokikifi.pdf
- https://cdn.shopify.com/s/files/1/0434/2376/0536/files/pabojejunuradijaji.pdf
- https://cdn.shopify.com/s/files/1/0435/6934/8763/files/58613538585.pdf
- https://cdn.shopify.com/s/files/1/0429/1959/2102/files/55683924066.pdf
- https://cdn.shopify.com/s/files/1/0431/1272/6677/files/example_of_official_letter.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wabodenerevugibew.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_off00005e02.binc76409b07bddffe8e0a38ecb0c2ad4f1896bebbc14859684ac2859f0e81ea80c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E02 | 5256 bytes |
font_01_sfnt_off00006fe6.bin64f0139efd83a1850ddd86bee90ec0a0e30ce7af5b76bc410701abcb005cb5a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6FE6 | 10312 bytes |
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