MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with one identified as a malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that are likely part of a link farm designed to lure victims. The primary malicious IOC is the redirector URL.
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.ru/pify?keyword=astigmatism+aberration+pdf
- http://files.expert-consultations.com/uploads/1/3/0/8/130815014/kujuwodusipiz.pdf
- http://files.mayfieldorchestra.org/uploads/1/3/0/8/130814238/9251803.pdf
- http://files.barakacommunity.co.uk/uploads/1/3/0/8/130874154/266e7f1f.pdf
- http://wepadud.splitridgerockies.com/uploads/1/3/0/8/130814674/divebumugamafejup.pdf
- https://cdn.shopify.com/s/files/1/0431/2721/0144/files/fevar.pdf
- https://cdn.shopify.com/s/files/1/0439/4477/1739/files/physical_science_grade_10_answer_series.pdf
- https://cdn.shopify.com/s/files/1/0430/9703/0817/files/11126725665.pdf
- https://cdn.shopify.com/s/files/1/0430/7235/6509/files/apneia_do_sono.pdf
- https://cdn.shopify.com/s/files/1/0434/6635/8934/files/sql_tutorial_tutorialspoint.pdf
- https://cdn.shopify.com/s/files/1/0434/2821/6983/files/timonatiwaboluwatemedimad.pdf
- https://cdn.shopify.com/s/files/1/0435/2468/5976/files/the_dragonborn_comes_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0431/4791/9522/files/7108582830.pdf
- https://cdn.shopify.com/s/files/1/0438/4777/8469/files/36017906462.pdf
- https://cdn.shopify.com/s/files/1/0429/7854/1722/files/lasemugadowomujam.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_off00007670.bin1bdbd2dbf05c2b08c01b25bf670d12081d073e1e6f6f3badb6df55ce777f77c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7670 | 5456 bytes |
font_01_sfnt_off000088d9.bin42dfe292d33b92f8147d410346efec518b4e60fc2b57c053e716255004957194 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88D9 | 10788 bytes |
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