MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body text suggests a lure related to 'Tcs aptitude test papers pdf'. The ML classifier strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL.
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=tcs+aptitude+test+papers+pdf
- http://files.theinclusionista.com/uploads/1/3/1/3/131381374/8072b579fe61.pdf
- http://files.greenbrierhistorical.org/uploads/1/3/2/8/132815220/jagovirimeko.pdf
- http://files.campcruz.com/uploads/1/3/2/6/132695701/zilumuzukixagix.pdf
- https://cdn.shop
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wizivudid.pdf
- https://cdn.shopify.com/s/files/1/0434/1124/3162/files/kowaxu.pdf
- https://cdn.shopify.com/s/files/1/0439/5037/5070/files/zupedekaxiwuriw.pdf
- https://cdn.shopify.com/s/files/1/0428/7594/5126/files/27548218246.pdf
- https://cdn.shopify.com/s/files/1/0429/5219/6249/files/55694952489.pdf
- https://cdn.shopify.com/s/files/1/0431/7013/6218/files/wifido.pdf
- https://cdn.shopify.com/s/files/1/0428/9029/7503/files/pajevi.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/miveguxuxububepevomozit.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bojakotipizijogi.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuvekalododit.pdf
- https://cdn.shopify.com/s/files/1/0437/3797/2897/files/javumupajaduwu.pdf
- https://cdn.shopify.com/s/files/1/0430/4368/4503/files/14773825554.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_off0000914f.bin54fa6f38ce3fe8ac95f2a8803655ddb9c8c7d417f871568900f61219d8ca8d5d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x914F | 4732 bytes |
font_01_sfnt_off0000a173.bin220e3d33a5c2fb860ae4d6c45cd234d69306dcf4c6c4cbd5228da0a99db84a0c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA173 | 10568 bytes |
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