MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) known for malicious activity. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that are part of this link farm, suggesting a deceptive lure to drive traffic to malicious sites.
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.ru/pify?keyword=august+calendar+2020+printable+pdf
- http://files.careerprospectslimited.com/uploads/1/3/2/3/132303286/1891009.pdf
- http://files.thecathedral.us/uploads/1/3/2/8/132815220/2816990.pdf
- http://files.elikalnonwoven.com/uploads/1/3/0/8/130814208/2d41ec9126ebed.pdf
- https://cdn.shopify.com/s/files/1/0428/2223/8374/files/class_11_chemistry_book_ncert.pdf
- https://cdn.shopify.com/s/files/1/0430/9126/3649/files/digesto_juridico_de_la_provincia_de_misiones.pdf
- https://cdn.shopify.com/s/files/1/0432/0182/2875/files/vomiwajelulojaraba.pdf
- https://cdn.shopify.com/s/files/1/0435/7426/3963/files/96708075710.pdf
- https://cdn.shopify.com/s/files/1/0431/6741/6488/files/63153762532.pdf
- https://cdn.shopify.com/s/files/1/0427/5883/2294/files/92265847007.pdf
- https://cdn.shopify.com/s/files/1/0432/6454/0840/files/the_outsider_albert_camus_download.pdf
- https://cdn.shopify.com/s/files/1/0435/3854/6840/files/88156243515.pdf
- https://cdn.shopify.com/s/files/1/0428/1312/8867/files/genelurovikotogugawu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zobuwavidojanunixi.pdf
- https://cdn.shopify.com/s/files/1/0430/0469/0581/files/ssh_tunneling_mac.pdf
- https://cdn.shopify.com/s/files/1/0430/1615/9381/files/default-_ssl._conf.pdf
- https://cdn.shopify.com/s/files/1/0431/8828/9694/files/44049498166.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_off000065c9.bin649d0c6e090057154194f8b6973753d90bca36632a322925e5fe0bbbb01d67e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65C9 | 5728 bytes |
font_01_sfnt_off00007957.bin0429385cb4cfad8db6c23380936a060005cb178c94ad40faf8218ce91266ade2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7957 | 9660 bytes |
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