MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a high number of embedded URLs, many pointing to what appears to be a link farm designed for SEO poisoning. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=gtu+academic+calendar+2020+pdf, suggesting a lure related to academic calendars to trick users into clicking the malicious link. No scripts were extracted from this sample.
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=gtu+academic+calendar+2020+pdf
- http://files.meaganedgar.com/uploads/1/3/0/7/130738622/gujawa-tebawudo-kusenivufi-funuzutatis.pdf
- http://ziwisa.stashasasylum.com/uploads/1/3/2/3/132303382/xiripaga.pdf
- http://xuvutakoz.a1fitnessusa.com/uploads/1/3/1/6/131636655/f6187b6d9bc697.pdf
- http://files.mimisbooksandmore.com/uploads/1/3/2/6/132695574/50693510e1f.pdf
- https://cdn.shopify.com/s/files/1/0431/0332/2269/files/68235328916.pdf
- https://cdn.shopify.com/s/files/1/0432/8770/7806/files/bixojiradev.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdf
- https://cdn.shopify.com/s/files/1/0431/9569/5266/files/vojifexegaxolotupel.pdf
- https://cdn.shopify.com/s/files/1/0434/8434/8569/files/reravezuzarub.pdf
- https://cdn.shopify.com/s/files/1/0434/7016/0032/files/embankment_definition.pdf
- https://cdn.shopify.com/s/files/1/0434/5161/3336/files/11217691222.pdf
- https://cdn.shopify.com/s/files/1/0428/4681/4374/files/stardew_valley_sprinkler_range.pdf
- https://cdn.shopify.com/s/files/1/0430/7373/2768/files/gixogexulufikisisiri.pdf
- https://cdn.shopify.com/s/files/1/0436/4949/9289/files/milejupigulemonerulireka.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53940500656.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_off00005de7.bin2f19338aa761e896512b977b70e0748aa1095d1b866763a1fc1b0103221072fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DE7 | 5428 bytes |
font_01_sfnt_off00007049.bin84d887c67d26de299bca904c14bcb7ec0836a9dd940cb8ac4e87297df82be021 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7049 | 10300 bytes |
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