MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=manual+de+auditoria+de+sistemas+informaticos+pdf'. Additionally, another critical heuristic indicates a PDF link farm, with the first URL being 'https://cdn.shopify.com/s/files/1/0434/0652/4566/files/wetirotilomipazejoz.pdf'. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, appears to contain the malicious 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.ru/pify?keyword=manual+de+auditoria+de+sistemas+informaticos+pdf
- http://files.pukasurf.com/uploads/1/3/1/4/131437983/ruruvowoma_morojuzimo.pdf
- http://files.angelahollanddesigns.com/uploads/1/3/1/4/131453924/3253511.pdf
- http://fikoka.infinitely-natural.com/uploads/1/3/1/1/131164312/c3ab280ac299076.pdf
- https://cdn.shopify.com/s/files/1/0434/0652/4566/files/wetirotilomipazejoz.pdf
- https://cdn.shopify.com/s/files/1/0434/1107/9317/files/dba_ciencias_sociales.pdf
- https://cdn.shopify.com/s/files/1/0437/1637/8773/files/stages_of_meiosis_1_and_2.pdf
- https://cdn.shopify.com/s/files/1/0431/5768/4375/files/12795868463.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61047377128.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54313135065.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gujogu.pdf
- https://cdn.shopify.com/s/files/1/0433/7732/8278/files/86608276552.pdf
- https://cdn.shopify.com/s/files/1/0434/3152/6557/files/soduvazififawedoveda.pdf
- https://cdn.shopify.com/s/files/1/0433/9305/6933/files/acpi_atk_0110.pdf
- https://cdn.shopify.com/s/files/1/0428/8151/5673/files/btec_level_2_first_hospitality_student_book.pdf
- https://cdn.shopify.com/s/files/1/0448/1577/7954/files/fapolitelijonabikexetij.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_off00014fcf.bin62bd9c4a11234bed075b42d93c453b1ad93edb8cb3084bf6c0c808c51a75e919 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14FCF | 5304 bytes |
font_01_sfnt_off000161c2.bin9d0af427fd732ea7febd04c0019fd5c42993254e8d67e9e225d058ccea91b827 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x161C2 | 11748 bytes |
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