MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, directing users to 'ttraff.me'. The document body, though heavily obfuscated, contains text fragments suggesting a lure related to 'the logo quiz answers'. The presence of numerous embedded links, many pointing to 'static.usrfiles.com', indicates a link farm strategy. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload.
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.me/wix?keyword=the+logo+quiz+answers+level+4
- https://static.usrfiles.com/ugd/eb5a6a_e159907c6fbc448ca96461a495b18c66.pdf
- https://static.usrfiles.com/ugd/03ae60_34a08e6883ee43e4b4305cdc0dbd63c9.pdf
- https://static.usrfiles.com/ugd/963627_9d06f73affe54d3387eba4fb752b11ca.pdf
- https://static.usrfiles.com/ugd/4d6844_cc726b729cd34395926e9730ccbb7255.pdf
- https://static.usrfiles.com/ugd/bf07b1_5719cdfed89145b9ae54c9188d734273.pdf
- https://static.usrfiles.com/ugd/440e29_9f2e0a2d43934f6e84410e2bad03f840.pdf
- https://static.usrfiles.com/ugd/fac845_4b10b552e99442f0ae5958d7abcfa5f3.pdf
- https://static.usrfiles.com/ugd/1cc777_27021b04fbdb4b7484b25345e2e93503.pdf
- https://static.usrfiles.com/ugd/ce14f3_cd998877d7154e50b467aadd0f0c690d.pdf
- https://cdn.shopify.com/s/files/1/0428/3957/2643/files/puvolevepo.pdf
- https://cdn.shopify.com/s/files/1/0472/2969/8213/files/kudawevofetodew.pdf
- https://cdn.shopify.com/s/files/1/0431/8212/9320/files/caresource_prior_authorization_form_for_humira.pdf
- https://cdn.shopify.com/s/files/1/0438/4335/4781/files/cazadores_de_microbios_libro_completo.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_off000065f3.bin86e8d6c07592d98378c9ff6bc007b9b5b828d6cb7993562bb0aad9bc3df6ea08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65F3 | 5312 bytes |
font_01_sfnt_off00007823.bin904c47e11594ef43c2fc9df1828f11a1550193c9f49bfdfbc85263297e31a7c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7823 | 10352 bytes |
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