MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure at ttraff.com. The document body, though heavily obfuscated, contains text related to 'thermodynamics reference book pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. The ML classifier also strongly flagged this PDF as malicious.
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/wb?keyword=thermodynamics%20reference%20book%20pdf
- http://files.beekinderco.com/uploads/1/3/1/4/131406049/03eca03.pdf
- http://rivabifu.jonathanstrayer.com/uploads/1/3/1/3/131384362/pusujafonegemi.pdf
- http://jikizu.doremiproject.org/uploads/1/3/2/6/132682646/6425175.pdf
- https://cdn.shopify.com/s/files/1/0432/5244/9444/files/event_id_10010.pdf
- https://cdn.shopify.com/s/files/1/0427/6980/9564/files/15980319706.pdf
- https://cdn.shopify.com/s/files/1/0427/6636/8935/files/44512154963.pdf
- https://cdn.shopify.com/s/files/1/0429/9243/5359/files/basic_aircraft_performance.pdf
- https://cdn.shopify.com/s/files/1/0433/4410/1544/files/12557526367.pdf
- https://cdn.shopify.com/s/files/1/0429/5596/4569/files/wiralufetobowefagiguzez.pdf
- https://cdn.shopify.com/s/files/1/0434/0855/6182/files/zasepezulekuso.pdf
- https://cdn.shopify.com/s/files/1/0432/8790/4422/files/kinds_of_adjectives_worksheet_with_answers.pdf
- https://cdn.shopify.com/s/files/1/0428/9275/5111/files/nifadufuvudigowiz.pdf
- https://cdn.shopify.com/s/files/1/0430/9050/9973/files/dufivawipovupipujagimi.pdf
- https://cdn.shopify.com/s/files/1/0431/8180/1629/files/fozafujemi.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_off00005ae3.bin9e3c4c1a6d79d04af4a3b9823e6da92291ec876ccb5859dc729e19eba0c05cc3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AE3 | 5620 bytes |
font_01_sfnt_off00006ddc.bin4317b02680ad1f8efb21ab9503caa93f552ebf1c0786999295db6631e0d4a373 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DDC | 10044 bytes |
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