MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with a primary URL pointing to a known malicious redirector. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the malicious URL and several other URLs that appear to be part of a link farm, likely for SEO poisoning or to host further malicious content. The primary malicious URL is https://ttraff.ru/pify?keyword=chinese+characters+stroke+order+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=chinese+characters+stroke+order+pdf
- http://files.ameliasclosetfilm.com/uploads/1/3/0/7/130740530/pegufifegiv.pdf
- http://files.delaneyswiftart.com/uploads/1/3/1/1/131163774/c87d5d4c0.pdf
- http://files.bgofalaska.com/uploads/1/3/2/3/132302963/2983338.pdf
- http://gususemu.imaginechildrensretreat.ca/uploads/1/3/1/0/131070874/1170536.pdf
- http://files.theflourishsisterhood.com/uploads/1/3/1/3/131398156/95d18288fa830.pdf
- https://cdn.shopify.com/s/files/1/0428/5458/0391/files/66349687238.pdf
- https://cdn.shopify.com/s/files/1/0433/4331/5102/files/44052072827.pdf
- https://cdn.shopify.com/s/files/1/0437/9348/1889/files/cuadernillo_de_vocales_para_imprimir.pdf
- https://cdn.shopify.com/s/files/1/0436/7273/1801/files/employment_news_odisha.pdf
- https://cdn.shopify.com/s/files/1/0429/1844/5223/files/convert_utc_to_cst.pdf
- https://cdn.shopify.com/s/files/1/0437/3495/8229/files/nudojiwedusenamuxadug.pdf
- https://cdn.shopify.com/s/files/1/0435/6302/4547/files/liruwiwokadinubedogosij.pdf
- https://cdn.shopify.com/s/files/1/0433/2273/6798/files/11967832203.pdf
- https://cdn.shopify.com/s/files/1/0430/9005/1221/files/34671951856.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_off00006505.bin9f40f80708d0166343f50b647250f72a8c30205b24ecd7e7aed842f4c40b976a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6505 | 17016 bytes |
font_01_sfnt_off00009b31.binbc2bd4519c388525b16ea05daef2cfeeffb1c45d67251a11c639a377e2fe061c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B31 | 5180 bytes |
font_02_sfnt_off0000acbb.binec16717a7709ddda508a2d0f8101bfcebe23cae372e989205b90c1632ac4eb69 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACBB | 10692 bytes |
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