MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, with the primary link leading to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'payroll calendar' and the malicious URL, suggesting a lure for phishing or malware delivery. The ML classifier strongly indicated maliciousness, and the PDF structure itself points to a link farm designed 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.cc/pify?keyword=2019+adp+semi+monthly+payroll+calendar+pdf
- http://files.nourishdiy.com/uploads/1/3/1/6/131637038/8766152.pdf
- https://cdn.shopify.com/s/files/1/0428/9023/1974/files/35481118928.pdf
- https://cdn.shopify.com/s/files/1/0461/6129/7560/files/50757448017.pdf
- https://cdn.shopify.com/s/files/1/0440/3471/9909/files/canon_eos_350d_software_windows_10.pdf
- https://cdn.shopify.com/s/files/1/0436/4402/7038/files/rimworld_steel_slag_chunk.pdf
- https://cdn.shopify.com/s/files/1/0434/0236/3045/files/31730242160.pdf
- https://cdn.shopify.com/s/files/1/0431/1190/7488/files/autodesk_inventor_sheet_metal_cylinder.pdf
- https://cdn.shopify.com/s/files/1/0435/2344/0792/files/japusodutaxevijil.pdf
- https://cdn.shopify.com/s/files/1/0432/4088/2343/files/politeness_strategies_by_brown_and_levinson.pdf
- https://cdn.shopify.com/s/files/1/0437/7418/1537/files/kesimivizarulokokagi.pdf
- https://cdn.shopify.com/s/files/1/0433/5288/3352/files/75736315655.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_off000069a6.bin44cff24811570412229a5be014447d7b91e143864a66bd93e8fbe07942d9b846 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69A6 | 5884 bytes |
font_01_sfnt_off00007d82.binb1f23c17d9940c27d039beae601bb1c5ff5262aff85e02e4e46533069f1f5c72 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D82 | 10856 bytes |
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