MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though partially corrupted, contains a URL that is also present in the link farm, suggesting an attempt to disguise malicious links as legitimate files. The ML classifier also strongly indicated maliciousness.
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=bsc+nursing+form+date+2019+lucknow
- http://files.josephinewang.net/uploads/1/3/0/7/130776055/66deb914e9.pdf
- http://files.skylarkinsf.com/uploads/1/3/2/6/132681698/80068326c136.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0435/0682/7429/files/biografia_de_conchita_cabrera_de_armida.pdf
- https://cdn.shopify.com/s/files/1/0428/2312/3100/files/88455986077.pdf
- https://cdn.shopify.com/s/files/1/0440/5261/1222/files/widipuse.pdf
- https://cdn.shopify.com/s/files/1/0436/4537/0518/files/cessna_152_aerobat_poh.pdf
- https://cdn.shopify.com/s/files/1/0440/6394/8950/files/cataclysmic_transformation_chapter_3.pdf
- https://cdn.shopify.com/s/files/1/0430/6819/4978/files/62079642140.pdf
- https://cdn.shopify.com/s/files/1/0433/6772/7269/files/testy_angielski_b1.pdf
- https://cdn.shopify.com/s/files/1/0438/4620/5602/files/pesuzevajuku.pdf
- https://cdn.shopify.com/s/files/1/0431/4615/0039/files/xikizufijojex.pdf
- https://cdn.shopify.com/s/files/1/0437/6556/3549/files/bewopilo.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
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006dea.binf36f4ef6c01d6a635652f80b5b402f2b1b1d301cbcbdf1880d8608376236f1b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DEA | 6028 bytes |
font_01_sfnt_off0000826c.bin5cc9486ce496c8acd7a94ebe2ef905bf94c9b38e015ddf8b0ef21980b76236b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x826C | 13644 bytes |
font_02_sfnt_off0000ad8b.binebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD8B | 16164 bytes |
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