MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, appears to be a lure related to 'Us army apft score chart pdf'. The presence of numerous external PDF links suggests a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted from this sample.
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=us+army+apft+score+chart+pdf
- http://files.leemlizzyonline.com/uploads/1/3/2/6/132681415/9360523.pdf
- http://files.oldpathsdzingre.org/uploads/1/3/1/0/131071063/zinesemojuwi.pdf
- http://files.sunkissedbridal.com/uploads/1/3/2/6/132683000/8829397.pdf
- http://files.simonesoernsen.com/uploads/1/3/1/3/131383514/c9d5b8fa8.pdf
- http://files.sunkissedbridal.com/uploads/1/3/2/
- https://cdn.shopify.com/s/files/1/0430/3536/1442/files/zunesilinukozejoxi.pdf
- https://cdn.shopify.com/s/files/1/0433/6176/3480/files/maxumavamijiwinixasep.pdf
- https://cdn.shopify.com/s/files/1/0434/4017/7314/files/66999968266.pdf
- https://cdn.shopify.com/s/files/1/0429/8578/3455/files/gejipifakovudususemel.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46946939033.pdf
- https://cdn.shopify.com/s/files/1/0431/5627/5362/files/maralubova.pdf
- https://cdn.shopify.com/s/files/1/0429/1916/6105/files/suwukupobaku.pdf
- https://cdn.shopify.com/s/files/1/0428/8688/9625/files/fidifixozerofegono.pdf
- https://cdn.shopify.com/s/files/1/0430/9660/4825/files/93923109177.pdf
- https://cdn.shopify.com/s/files/1/0435/8144/0168/files/56342824042.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_off0000805e.bin3b821ed0924ed50be71bc8fda82442b1bd5ffb517bcecba7b642bc61bbd1b891 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x805E | 5092 bytes |
font_01_sfnt_off000091ab.bina500a58750c0178f316c7fde61a87a9953bfa07d43e1ac32de5065ebd352a235 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x91AB | 14488 bytes |
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