MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Android version 9 for note 8'. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning attempt to drive traffic to the malicious redirector. The ML classifier 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/pify?keyword=android+version+9+for+note+8
- http://files.allison-kiefnerburmeister.com/uploads/1/3/0/7/130738792/6412098.pdf
- http://files.kwik-fix.co.uk/uploads/1/3/1/6/131637889/8397394.pdf
- http://files.coflats.net/uploads/1/3/0/9/130969474/3588177.pdf
- http://dejeg.graphicatech.com/uploads/1/3/1/8/131856584/5914480.pdf
- https://cdn.shopify.com/s/files/1/0437/0032/2458/files/41408301652.pdf
- https://cdn.shopify.com/s/files/1/0451/8805/5191/files/34544301735.pdf
- https://cdn.shopify.com/s/files/1/0432/3452/5347/files/22821699105.pdf
- https://cdn.shopify.com/s/files/1/0432/0041/3856/files/bedojapoku.pdf
- https://cdn.shopify.com/s/files/1/0430/7058/7029/files/82615936782.pdf
- https://cdn.shopify.com/s/files/1/0431/1495/4908/files/16135833358.pdf
- https://cdn.shopify.com/s/files/1/0440/8714/8694/files/guided_meditation_for_healing_pain.pdf
- https://cdn.shopify.com/s/files/1/0431/9415/5170/files/firexuludak.pdf
- https://cdn.shopify.com/s/files/1/0431/0951/5425/files/37030017704.pdf
- https://cdn.shopify.com/s/files/1/0433/7185/6026/files/tuvezetuzolibi.pdf
- https://cdn.shopify.com/s/files/1/0429/7077/5706/files/5051225525.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_off000074d8.bin7ae3b67dde97fcafc9e3ab9112c3416b467d4860baf1006f71d7247c7fc7d3a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74D8 | 5056 bytes |
font_01_sfnt_off0000861c.binde8e11eef43402a58e26bd508a7035d8e89a505bdb85d89ba8411d5d0a172fb3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x861C | 10560 bytes |
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