MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that point to a redirector service, which then leads to a malicious URL. The document body, though heavily obfuscated, contains text related to 'anxiety and depression questionnaire pdf' and the malicious URL itself. This suggests a phishing or scam attempt where the user is tricked into clicking the link under the guise of accessing a questionnaire. The presence of numerous Shopify links, some benign and some potentially part of the lure, indicates a link farm strategy to obscure the final malicious destination.
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=anxiety+and+depression+questionnaire+pdf
- http://files.kfbca.com/uploads/1/3/0/8/130813988/lesirone_volajupiwivixud_lezazumefam_nubow.pdf
- https://cdn.shopify.com/s/files/1/0433/9371/2286/files/dufara.pdf
- https://cdn.shopify.com/s/files/1/0429/9754/7157/files/comfort_pro_apu.pdf
- https://cdn.shopify.com/s/files/1/0432/9455/6320/files/assembleia_da_repblica_de_moambique.pdf
- https://cdn.shopify.com/s/files/1/0435/3127/2346/files/tableau_alimentation_bb_6_mois.pdf
- https://cdn.shopify.com/s/files/1/0434/5842/9078/files/78186370322.pdf
- https://cdn.shopify.com/s/files/1/0435/7688/5416/files/business_intelligence_software_at_sysco.pdf
- https://cdn.shopify.com/s/files/1/0428/1345/6550/files/21074778055.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdf
- https://cdn.shopify.com/s/files/1/0440/8272/5029/files/98837119666.pdf
- https://cdn.shopify.com/s/files/1/0434/0203/5351/files/65551613369.pdf
- https://cdn.shopify.com/s/files/1/0434/0989/9670/files/zuwefan.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_off0000635e.bincc1c3df7c218a6352c114e5d458895eba46811b9219bed09d9831051ff3750cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x635E | 5288 bytes |
font_01_sfnt_off0000756c.bin61325dade880b62f118a5579622412e3cc15eeaa15073fef7c3146f7ae0e04d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x756C | 10472 bytes |
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