MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is 'https://ttraff.ru/wix?keyword=backup+software+for+android+free', which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to 'backup software for android free', suggesting a lure to disguise the malicious intent. The presence of numerous links and the ML classifier's high confidence score indicate a malicious document, likely intended to lead users to malicious content or phishing 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/wix?keyword=backup+software+for+android+free
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/0779a3_8a64a20c14134143b2468e40f4481bd4.pdf
- https://static.usrfiles.com/ugd/4d400c_b3279da1887749f28fdb22b6731e065a.pdf
- https://static.usrfiles.com/ugd/33a16d_6c4a9242fd77461a8cd91d6db27ffd8d.pdf
- https://static.usrfiles.com/ugd/b8c837_7201f6fead11433995dd04fb9a5e2270.pdf
- https://cdn.shopify.com/s/files/1/0432/6876/7907/files/amarok_v6_specs.pdf
- https://cdn.shopify.com/s/files/1/0431/2619/4333/files/heavyweight_cotton_flannel_sheet_set.pdf
- https://cdn.shopify.com/s/files/1/0430/0544/4259/files/the_alchemist_coelho.pdf
- https://cdn.shopify.com/s/files/1/0437/9679/1456/files/xorav.pdf
- https://cdn.shopify.com/s/files/1/0434/3680/2204/files/86371155326.pdf
- https://cdn.shopify.com/s/files/1/0462/4249/6663/files/1984323942.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_off000075d3.bin10e19d52639e937c7d2e7396bdb8f4cdc1d78a6efc1987323f5665111b9be3db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75D3 | 5320 bytes |
font_01_sfnt_off00008811.binb35749f6060c8e879955da77f0b1700b193e68a76aff0dbf59198ad9fbc033ea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8811 | 9832 bytes |
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