MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and appears to contain a URL that is likely used to redirect users to malicious content. The presence of numerous links suggests a link farm or phishing attempt.
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=berchemia+zeyheri+pdf
- http://files.rebuildhopekansas.org/uploads/1/3/1/6/131637125/6682295.pdf
- http://files.aaronhosannah.com/uploads/1/3/1/4/131454151/xefer.pdf
- http://files.professortruszkowski.org/uploads/1/3/0/7/130775135/7331505.pdf
- http://jedonize.chapstickdiaries.com/uploads/1/3/0/8/130814411/rapenutakemip-dutotilivazuzu-nejok-dodov.pdf
- http://mosuriz.therefugephilomath.org/uploads/1/3/0/7/130776485/rejuwawebujub.pdf
- https://cdn.shopify.com/s/files/1/0437/7778/6018/files/nivujonuvefusakidunuju.pdf
- https://cdn.shopify.com/s/files/1/0448/4169/7441/files/chemistry_notes_class_12.pdf
- https://cdn.shopify.com/s/files/1/0427/3196/2535/files/gidoxabojumukusevapiwoxim.pdf
- https://cdn.shopify.com/s/files/1/0429/0658/3203/files/93978689427.pdf
- https://cdn.shopify.com/s/files/1/0434/4145/5261/files/wiwewesoxefijiri.pdf
- https://cdn.shopify.com/s/files/1/0429/9754/7157/files/nizakawatus.pdf
- https://cdn.shopify.com/s/files/1/0428/5012/3943/files/begujewefa.pdf
- https://cdn.shopify.com/s/files/1/0431/0496/0676/files/13818374709.pdf
- https://cdn.shopify.com/s/files/1/0451/1626/0517/files/general_ledger_template.pdf
- https://cdn.shopify.com/s/files/1/0431/6839/9524/files/81251601244.pdf
- https://cdn.shopify.com/s/files/1/0429/6769/5511/files/celula_eucariotica_e_procariotica.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_off000066be.bin8e9a8940bfe1855a3ed3eb65d9dde3ec131973c2c601eeedbc682fe809805cf1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66BE | 5388 bytes |
font_01_sfnt_off000078fc.bin6eef62ab2236f33136ca243088ea66b56b210c61fe5ea4a03303b157d27cf0c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78FC | 10356 bytes |
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