MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that point to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it is a PDF about guitar chords, a common lure for phishing or malware delivery. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to improve search engine ranking for malicious content. The ML classifier strongly supports the malicious nature of this PDF.
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=guitar+chords+notes+for+beginners+pdf
- http://files.carriecorebodystudio.com/uploads/1/3/1/8/131871597/kaporonamaguwogegixe.pdf
- http://files.sydneymcneillwrites.com/uploads/1/3/1/3/131378950/lekoweziret-jiwopisemitofu-jozubivopane.pdf
- http://files.deltamoonsoap.com/uploads/1/3/2/6/132681517/lemeju.pdf
- https://cdn.shopify.com/s/files/1/0428/9753/9231/files/63274650685.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/laxigitifudavizemitipa.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5081520916.pdf
- https://cdn.shopify.com/s/files/1/0433/1136/6309/files/defoduxevivufuw.pdf
- https://cdn.shopify.com/s/files/1/0431/7003/7924/files/19060571911.pdf
- https://cdn.shopify.com/s/files/1/0428/2574/4540/files/hand_embroidery_patterns.pdf
- https://cdn.shopify.com/s/files/1/0433/1290/6405/files/fexofadelegamutud.pdf
- https://cdn.shopify.com/s/files/1/0439/7678/6078/files/mapudegamamikosamoxaz.pdf
- https://cdn.shopify.com/s/files/1/0429/8178/5753/files/72622784944.pdf
- https://cdn.shopify.com/s/files/1/0431/3248/5799/files/fulasakusagema.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006ca4.binc57d2099a9ad4906861d0254ebef10e919d6a8f97e5cbdc4ffb5229f53d98bbc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CA4 | 5556 bytes |
font_01_sfnt_off00007f80.bin4f7fb4d1f418ebf4f651d64a69de808d3c2cde821a228f077c5973dfd611b13c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F80 | 9980 bytes |
font_02_sfnt_off0000a1d2.binaad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA1D2 | 16312 bytes |
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