MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily garbled, contains text suggesting it is a lure for an 'appointment letter format'. The presence of numerous links to Shopify PDFs, some flagged as benign, suggests a link farm or SEO poisoning tactic to mask the malicious redirector. No scripts were extracted, but the PDF structure itself facilitates the redirection.
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=appointment+letter+format+word+sales+manager
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/8960/0414/files/joponosimupeborijaguso.pdf
- https://cdn.shopify.com/s/files/1/0431/1652/7770/files/77569381217.pdf
- https://cdn.shopify.com/s/files/1/0431/7347/8560/files/29808515371.pdf
- https://cdn.shopify.com/s/files/1/0434/2883/9581/files/daikin_ceiling_ac_manual.pdf
- https://cdn.shopify.com/s/files/1/0428/6296/8991/files/rixizepelokomutinugatuwot.pdf
- https://cdn.shopify.com/s/files/1/0431/8032/7076/files/32747930294.pdf
- https://cdn.shopify.com/s/files/1/0434/5734/7741/files/9013258693.pdf
- https://cdn.shopify.com/s/files/1/0436/2846/2240/files/camera_raw_photoshop_cc_2015.pdf
- https://cdn.shopify.com/s/files/1/0463/3313/2955/files/98098075300.pdf
- https://cdn.shopify.com/s/files/1/0434/4207/7846/files/does_android_9_have_dark_mode.pdf
- https://cdn.shopify.com/s/files/1/0438/9660/2779/files/super_smash_bros_brawl_ntsc-j_iso.pdf
- https://cdn.shopify.com/s/files/1/0429/4747/7667/files/12055833008.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_off00005c66.bin1fe31ef50b11b394309f0e8f04271a3844e186eb4f1a4ab8226228cf98e74ed4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C66 | 5444 bytes |
font_01_sfnt_off00006ee9.bin1d308713381c2bb36e27b16cd48848445a57b68df112ceba740ad56198f9ae12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EE9 | 10012 bytes |
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