MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the same as the malicious redirector. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning attempt to distribute malicious content.
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=usa+area+code+list+pdf
- http://files.iowawell.org/uploads/1/3/2/6/132681356/9677495.pdf
- http://files.miriamruberlartist.com/uploads/1/3/1/4/131483019/828517e6fc26dc2.pdf
- http://files.newvalleyfellowship.com/uploads/1/3/0/8/130814127/wibamaba-nipewuzeviw-polelafokijix-kaxavisekemilok.pdf
- http://files.juliahendrickson.com/uploads/1/3/2/8/132814898/jadugokumo.pdf
- https://cdn.shopify.com/s/files/1/0438/9853/6091/files/85952432566.pdf
- https://cdn.shopify.com/s/files/1/0433/3866/2053/files/bevubegirekogobuterep.pdf
- https://cdn.shopify.com/s/files/1/0438/3303/2864/files/streamlabs_custom_css_chat.pdf
- https://cdn.shopify.com/s/files/1/0427/8494/8380/files/jobuzolenon.pdf
- https://cdn.shopify.com/s/files/1/0433/4724/7263/files/caderno_caligrafia_para_imprimir.pdf
- https://cdn.shopify.com/s/files/1/0431/2816/0417/files/advertising_and_public_relations_research_2nd_edition.pdf
- https://cdn.shopify.com/s/files/1/0427/8714/3839/files/54324361262.pdf
- https://cdn.shopify.com/s/files/1/0440/2675/7270/files/tefiliwivabapewetiza.pdf
- https://cdn.shopify.com/s/files/1/0437/1942/6198/files/85436274679.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_off0000641a.bin718aa0e1a6de934ab521ac05959861546574881cbd5d79d2810347ce94fdb136 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x641A | 5140 bytes |
font_01_sfnt_off000075aa.binc345584cccdb92e7dfb0806d9fb285f498b528cab5847a084b16ca5c12888863 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75AA | 13728 bytes |
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