MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to host or deliver a malicious payload. The document body, though heavily obfuscated, contains text suggesting it is an 'exam kit PDF' and includes the malicious URL, indicating a phishing or social engineering attempt. The presence of numerous external PDF links, many pointing to benign Shopify domains, suggests a link farm used for SEO poisoning to attract victims.
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/wix?keyword=acca+f2+kaplan+exam+kit+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0438/5108/8032/files/90428935113.pdf
- https://cdn.shopify.com/s/files/1/0433/6753/0657/files/75840085330.pdf
- https://cdn.shopify.com/s/files/1/0433/6952/9509/files/89688919072.pdf
- https://cdn.shopify.com/s/files/1/0434/0026/5878/files/aircraft_seat_design.pdf
- https://static.usrfiles.com/ugd/b8c837_b6ade1eebc8242aba3474f90d177a413.pdf
- https://static.usrfiles.com/ugd/b8c837_f7b557e2baab4bf5881c387455893c6a.pdf
- https://static.usrfiles.com/ugd/b8c837_bbd587d567d54cbfa75066e5bd6bfa59.pdf
- https://static.usrfiles.com/ugd/b8c837_adcc115665af4fb4aed394875277abb9.pdf
- https://static.usrfiles.com/ugd/409ca8_4fb4d3d673234205999a73bf505347bf.pdf
- https://static.usrfiles.com/ugd/b8c837_4ad506e16d354203ab18ad88794e9d11.pdf
- https://static.usrfiles.com/ugd/b88e3d_a6135c5763604f4e88cf1f1643b5e50e.pdf
- https://static.usrfiles.com/ugd/b8c837_ee60ffe794b9420398a5a1d2f0fbddd4.pdf
- https://static.usrfiles.com/ugd/b8c837_d59cec74088c4297bda894a3449ecb75.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_off00004b88.bin9bf269ba112fd6c04521efb7bb929edff6091f229415a3fc714eec2806b865f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B88 | 5280 bytes |
font_01_sfnt_off00005d71.bine807fc61cbbd5768efd18a2ae7b617be8e7db0d16c5bac42ac2ff18b219709b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D71 | 10012 bytes |
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