MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `ttraff.ru`. The document body, though partially corrupted, also contains this URL and appears to be a lure for a PDF download. The presence of a large number of external links, many hosted on `cdn.shopify.com`, suggests a link farm SEO tactic to improve search engine ranking for malicious content. The ML classifier also strongly indicated maliciousness.
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=verbal+ability+for+cat+by+sujit+kumar+pdf+download
- http://files.goldendebt.org/uploads/1/3/0/9/130969405/rijebej.pdf
- http://files.ziontbc.com/uploads/1/3/2/6/132695569/xutodizi.pdf
- http://files.stemresources.net/uploads/1/3/1/1/131163833/zafunizalezo_rewubuza.pdf
- http://files.cheryllynnplett.com/uploads/1/3/0/7/130740065/vosadonezur.pdf
- https://cdn.shopify.com/s/files/1/0431/6463/1189/files/zodegax.pdf
- https://cdn.shopify.com/s/files/1/0436/5503/7093/files/jj_benitez_caballo_de_troya_4.pdf
- https://cdn.shopify.com/s/files/1/0434/4433/8838/files/vigopafejawexobe.pdf
- https://cdn.shopify.com/s/files/1/0433/9436/7649/files/89525709925.pdf
- https://cdn.shopify.com/s/files/1/0427/4136/6951/files/bosemu.pdf
- https://cdn.shopify.com/s/files/1/0437/0425/4615/files/tirura.pdf
- https://cdn.shopify.com/s/files/1/0437/6428/5598/files/jegadigijebubepijarezufut.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22945880436.pdf
- https://cdn.shopify.com/s/files/1/0433/5534/0954/files/bodifulidezowekosuwi.pdf
- https://cdn.shopify.com/s/files/1/0434/3175/5932/files/27730959665.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_off00004710.binc6cfcc5364e8f615ffd660d83def2acd41867bb2f8a7d5b4999e88a59297da0d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4710 | 5620 bytes |
font_01_sfnt_off00005a25.bin9fa00304e06c33a104e1194ab1af39c2b43e3b5e70ea39e1dea58cabcdb5f9ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A25 | 10332 bytes |
font_02_sfnt_off00007d46.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D46 | 4324 bytes |
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