MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by multiple heuristics as malicious, specifically for containing a large number of external links, some of which point to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The document body contains a URL that appears to be a lure for 'twilight syndrome english patch', which is then redirected via a malicious domain.
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=twilight+syndrome+english+patch
- http://files.dalessandroscouting.com/uploads/1/3/0/7/130775712/manisegimeketij_wotiwupisevab.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/4444/6118/files/ten_commandments_bible.pdf
- https://cdn.shopify.com/s/files/1/0433/5845/3918/files/lajonaxidivoxaguzilupifof.pdf
- https://cdn.shopify.com/s/files/1/0462/4374/1845/files/alaris_pump_8015_service_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/0705/7825/files/up_board_result_2020_class_12_download.pdf
- https://cdn.shopify.com/s/files/1/0434/3565/5335/files/hp_j4500_printer_manual.pdf
- https://cdn.shopify.com/s/files/1/0430/4489/6925/files/84854236603.pdf
- https://cdn.shopify.com/s/files/1/0431/7190/5698/files/12697595971.pdf
- https://cdn.shopify.com/s/files/1/0431/0636/9703/files/15579569502.pdf
- https://cdn.shopify.com/s/files/1/0434/2156/5078/files/354903068.pdf
- https://cdn.shopify.com/s/files/1/0433/5727/4270/files/triangle_dor_positionnement.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65496272691.pdf
- https://cdn.shopify.com/s/files/1/0438/9430/9019/files/65456798015.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_off0000445e.bin473f35cde1616076c159a195f98b93652e36d2d136e2dece6eecd4eb1408ce15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x445E | 5632 bytes |
font_01_sfnt_off00005759.bin2e76ea946e4d176d894865a2aed00476d1f434bb7c2c64bd0e1a0d0498953efd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5759 | 9896 bytes |
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