MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL. The presence of a link farm and the ML classifier's high confidence further support the malicious nature of this document. The primary attack vector appears to be a lure to a malicious site via embedded links.
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=astm+a106+chemical+composition+pdf
- http://files.rustedrelics.com/uploads/1/3/1/3/131380546/d1d11f.pdf
- http://misabod.amazinggrasslawncare.net/uploads/1/3/1/3/131398455/8059055.pdf
- http://files.seattosleep.co.uk/uploads/1/3/2/6/132695418/1b7af.pdf
- http://files.nickygibbsdance.co.uk/uploads/1/3/2/6/132681409/1730420.pdf
- https://cdn.shopify.com/s/files/1/0431/7069/3282/files/pharmacological_classification_of_antidiabetic_drugs.pdf
- https://cdn.shopify.com/s/files/1/0428/3141/3404/files/98447200726.pdf
- https://cdn.shopify.com/s/files/1/0435/9123/7794/files/the_coldest_winter_ever_free.pdf
- https://cdn.shopify.com/s/files/1/0433/2657/0664/files/pilates_power_gym.pdf
- https://cdn.shopify.com/s/files/1/0427/9461/4940/files/save_terminal_output_to_file.pdf
- https://cdn.shopify.com/s/files/1/0429/4931/2666/files/10536809629.pdf
- https://cdn.shopify.com/s/files/1/0434/1386/4602/files/91605870937.pdf
- https://cdn.shopify.com/s/files/1/0432/4828/7912/files/converter_to_word_file_download.pdf
- https://cdn.shopify.com/s/files/1/0437/5497/9477/files/92736259033.pdf
- https://cdn.shopify.com/s/files/1/0431/8114/6280/files/zoxisuxatonajomabegebido.pdf
- https://cdn.shopify.com/s/files/1/0431/6977/5782/files/arpeggio_jazz_guitar.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_off000078ad.binc1634048915c2d7417b6f281c36e7e616105c8d82178d45c9d3a1f4d5f183edf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78AD | 5636 bytes |
font_01_sfnt_off00008bb2.bin523496d0bd60ae821d212e64d6984252f18eb981f0b1357056a1930fd0e27ecf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8BB2 | 10748 bytes |
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