MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link that redirects to a malicious URL, disguised as 'annual payroll tax forms'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this redirection to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, suggesting a link farm designed to distribute malicious content. No scripts were extracted, but the presence of embedded URLs and the ML classifier's high confidence score support the malicious verdict.
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=annual+payroll+tax+forms
- http://walegegut.jessicaohanley.com/uploads/1/3/0/7/130775374/tiwikanadigekezovi.pdf
- http://files.borderskirental.com/uploads/1/3/1/3/131379833/lemuw.pdf
- http://files.daphnefatterphd.com/uploads/1/3/1/6/131636957/a96824f4.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/7141/3155/files/7097519067.pdf
- https://cdn.shopify.com/s/files/1/0432/8803/5486/files/2579831203.pdf
- https://cdn.shopify.com/s/files/1/0435/5984/6051/files/aci_sp_4.pdf
- https://cdn.shopify.com/s/files/1/0438/0449/1936/files/60378641450.pdf
- https://cdn.shopify.com/s/files/1/0433/4950/8246/files/bapalujuzapobujojuk.pdf
- https://cdn.shopify.com/s/files/1/0435/7180/6366/files/corpse_bride_piano.pdf
- https://cdn.shopify.com/s/files/1/0432/9770/2046/files/e_bildirge_ifre_formu.pdf
- https://cdn.shopify.com/s/files/1/0447/3788/8410/files/pulse_code_modulation_techniques.pdf
- https://cdn.shopify.com/s/files/1/0432/3026/5511/files/30883582472.pdf
- https://cdn.shopify.com/s/files/1/0437/2316/1768/files/sinubufevav.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005ec1.binf55680cee4efe2b5fe0297e92a44abff5b1ce2fab533532839be390b7b7cb5d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EC1 | 5204 bytes |
font_01_sfnt_off0000706e.binecd3495469a90d799386c085ad345baa41d263d968d064c57ddfa8b3b6e78b90 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x706E | 10980 bytes |
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