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 pointing to Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains text related to 'Instagram app latest version 2018' and the malicious redirector URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly supports the malicious verdict.
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.cc/pify?keyword=instagram+app++latest+version+2018
- http://files.treehouse-creative.com/uploads/1/3/0/7/130739366/1454625.pdf
- http://bakalatof.unitashonor.org/uploads/1/3/0/8/130814328/8183600.pdf
- https://cdn.shopify.com/s/files/1/0436/6984/8217/files/35226505023.pdf
- https://cdn.shopify.com/s/files/1/0437/4819/6506/files/33956363048.pdf
- https://cdn.shopify.com/s/files/1/0434/5682/3462/files/fogakaxe.pdf
- https://cdn.shopify.com/s/files/1/0429/3751/6191/files/sociology_notes_class_12.pdf
- https://cdn.shopify.com/s/files/1/0428/8266/2553/files/73414432035.pdf
- https://cdn.shopify.com/s/files/1/0431/5725/8401/files/digikawilukukomepuse.pdf
- https://cdn.shopify.com/s/files/1/0429/5085/2762/files/zodenamupi.pdf
- https://cdn.shopify.com/s/files/1/0440/3740/6870/files/folubepezanubitikuriga.pdf
- https://cdn.shopify.com/s/files/1/0436/2820/0096/files/aisi_koi_video.pdf
- https://cdn.shopify.com/s/files/1/0431/3779/4204/files/49050739773.pdf
- https://cdn.shopify.com/s/files/1/0436/0703/1966/files/another_irish_drinking_song_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/davunaxejapezuxipuwuwozom.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_off000054ab.bin2c541024797f536f1599db9fce79f630dbf6d19d6085c2ce39537c1e50069017 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54AB | 5656 bytes |
font_01_sfnt_off000067dd.bin1df1a4e6202b50089b083769d69f8351d5576c4c0b970ed42b125df075ae25dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67DD | 10176 bytes |
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