MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to 'renin angiotensin system pdf'. The presence of numerous external links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content.
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.com/pify?keyword=renin+angiotensin+system+pdf
- http://files.ogetigers.com/uploads/1/3/1/1/131164250/b02a2.pdf
- http://files.southmunc.org/uploads/1/3/0/8/130874058/7934808.pdf
- http://files.aldoleopoldfestival.com/uploads/1/3/0/7/130740490/4586973.pdf
- https://cdn.shopify.com/s/files/1/0431/3317/3927/files/asturias_tab_guitar.pdf
- https://cdn.shopify.com/s/files/1/0452/4628/3937/files/cfop_guide.pdf
- https://cdn.shopify.com/s/files/1/0432/8043/3302/files/saxophone_arpeggio_exercises.pdf
- https://cdn.shopify.com/s/files/1/0431/8052/3681/files/japikelikisifipe.pdf
- https://cdn.shopify.com/s/files/1/0434/9886/4804/files/canard_pc_hardware_23.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49839171509.pdf
- https://cdn.shopify.com/s/files/1/0434/0665/5642/files/mudufatemurawodas.pdf
- https://cdn.shopify.com/s/files/1/0437/9597/2256/files/79472273645.pdf
- https://cdn.shopify.com/s/files/1/0431/9431/9009/files/26422491740.pdf
- https://cdn.shopify.com/s/files/1/0428/6028/2023/files/upsc_maths_optional_books_free_download.pdf
- https://cdn.shopify.com/s/files/1/0430/6694/9786/files/sijukelawor.pdf
- https://cdn.shopify.com/s/files/1/0429/4030/1478/files/calculus_graphical_numerical_algebraic.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_off00006a87.binee73aeb2d0aacc0b97a37ea635ee3100ba5fd6457622b2fdb584fbe52c0571af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A87 | 5344 bytes |
font_01_sfnt_off00007cbb.bin6b370ae4c0fe9e956920d18ea43fabc6bb51e493fcea48a6153b07731e8c6845 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CBB | 10296 bytes |
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