MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains this URL and also references 'reliability statistics lecture notes pdf', suggesting a lure. The PDF also exhibits a link farm behavior, with numerous embedded URLs, many hosted on Shopify. The primary malicious URL is used to redirect the user, likely to a further stage of attack.
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=reliability+statistics+lecture+notes+pdf
- http://files.libertypuzzlespearlstreet.com/uploads/1/3/1/4/131438268/1000565e.pdf
- http://files.cogpowcommunity.org/uploads/1/3/0/7/130740571/6759650.pdf
- https://cdn.shopify.com/s/files/1/0432/8760/9497/files/padobizin.pdf
- https://cdn.shopify.com/s/files/1/0435/4133/2127/files/mivojazoboritojitokutav.pdf
- https://cdn.shopify.com/s/files/1/0433/3332/0872/files/aristocats_scales_and_arpeggios_sheet_music.pdf
- https://cdn.shopify.com/s/files/1/0431/6574/5312/files/vinivusezitotokokul.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gejazopemovaro.pdf
- https://cdn.shopify.com/s/files/1/0458/5973/3657/files/preposition_of_time_worksheets_for_grade_2.pdf
- https://cdn.shopify.com/s/files/1/0431/6574/5312/files/wamurez.pdf
- https://cdn.shopify.com/s/files/1/0435/4346/2037/files/george_bridgman_pdf.pdf
- https://cdn.shopify.com/s/files/1/0428/7329/0908/files/51239180350.pdf
- https://cdn.shopify.com/s/files/1/0430/7596/0985/files/32110631217.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_off00004f14.bin5e6fbaa0d6f94af2ed75de0df49192662e43fba377ab0dabd15443fbf39a0f57 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F14 | 5400 bytes |
font_01_sfnt_off00006178.bin58151fcf2365304c6df197c9d2ee03515aaf05410a9ab2d0115fa879a1563163 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6178 | 9832 bytes |
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