MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'operating systems concepts 9th edition pdf solutions' and a URL that appears to be part of a link farm designed to manipulate search engine results. The ML classifier also strongly indicated maliciousness.
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=operating+systems+concepts+9th+edition+pdf+solutions
- http://files.gobrazil.co.uk/uploads/1/3/0/8/130874304/e62ac.pdf
- http://files.alamosavalleyhumaneleague.org/uploads/1/3/0/7/130738534/nawigin_ferovezoda_sikiw.pdf
- http://files.graceandgloryyoga.com/uploads/1/3/1/4/131483148/tonuvefezux_nilotixa_fonivarifixa_kedegijogedif.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0427/6997/3415/files/99383462876.pdf
- https://cdn.shopify.com/s/files/1/0440/5015/3622/files/24936386683.pdf
- https://cdn.shopify.com/s/files/1/0432/7541/9812/files/72789294398.pdf
- https://cdn.shopify.com/s/files/1/0436/3078/8758/files/delete_time_machine_backups.pdf
- https://cdn.shopify.com/s/files/1/0428/5674/3079/files/lavipukapumixegovelap.pdf
- https://cdn.shopify.com/s/files/1/0435/9290/8963/files/niwagafise.pdf
- https://cdn.shopify.com/s/files/1/0432/8197/3403/files/charter_spectrum_bozeman.pdf
- https://cdn.shopify.com/s/files/1/0431/6895/6565/files/widis.pdf
- https://cdn.shopify.com/s/files/1/0433/2955/2552/files/19326716116.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/babape.pdf
- https://cdn.shopify.com/s/files/1/0432/7895/8758/files/17912846976.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_off000183f0.binfa475e38d1c026dc36708614b84fa37c5bbedceca29bc06ee1f526908f6a1b47 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x183F0 | 5852 bytes |
font_01_sfnt_off000197b8.binf201bc8e654dfcb98e9ee4a2da6bf63e17ed25eb28e26a9738d9f41d1ed78585 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x197B8 | 13940 bytes |
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