MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to redirect users to malicious content, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though obfuscated, contains text suggesting it is a worksheet, which is a common lure. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload.
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.cc/pify?keyword=ordered+pairs+worksheet+pdf
- http://kogosa.ispinwood.com/uploads/1/3/1/4/131408100/momemi.pdf
- http://files.bambooartscenter.com/uploads/1/3/1/8/131857071/pujeriwetid-napofemerumaw.pdf
- http://files.isr2020.org/uploads/1/3/0/7/130775102/topafisitas_mopakufap_lorozok.pdf
- http://files.saltdancecompany.com/uploads/1/3/1/4/131438641/494423.pdf
- http://files.misssummitinternational.com/uploads/1/3/1/3/131397996/f29a5.pdf
- https://cdn.shopify.com/s/files/1/0432/1912/4382/files/dajukewawuwidegutap.pdf
- https://cdn.shopify.com/s/files/1/0434/7353/5138/files/11654680882.pdf
- https://cdn.shopify.com/s/files/1/0431/6836/6760/files/toefl_ibt_reading_practice.pdf
- https://cdn.shopify.com/s/files/1/0432/0896/6301/files/80978234511.pdf
- https://cdn.shopify.com/s/files/1/0433/3623/7206/files/jokiwawesa.pdf
- https://cdn.shopify.com/s/files/1/0437/7768/7701/files/fijaguvezubujoruzalur.pdf
- https://cdn.shopify.com/s/files/1/0430/7383/1066/files/90779268848.pdf
- https://cdn.shopify.com/s/files/1/0440/1607/4902/files/lifox.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xovigaza.pdf
- https://cdn.shopify.com/s/files/1/0431/9802/1793/files/pompeii_buried_alive.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_off00006170.bincc8b33dc2c0f9942940a54a4c5c9f1ef12f268cf036c5ad17a9393e36281fba2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6170 | 5280 bytes |
font_01_sfnt_off00007375.bin3e662b991379682326dd3ce798308e669e9dceaa7c830ab753f8e7900cff5e2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7375 | 10136 bytes |
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