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.com/wix?keyword=source+2+engine+free'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous links to external PDFs, many hosted on 'static.usrfiles.com'. The document body, though heavily obfuscated, contains the malicious URL and references to 'Source 2 engine free', suggesting a lure for a free software download. The ML classifier also strongly flagged this PDF as malicious.
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/wix?keyword=source+2+engine+free
- https://static.usrfiles.com/ugd/b0b521_378253406b6e443dbe69b3c3947ddcab.pdf
- https://static.usrfiles.com/ugd/ca300b_43f2b408b63a48048eacc3c8bb8ac431.pdf
- https://static.usrfiles.com/ugd/12dc78_32e95943ac104451998f59ce15e001d8.pdf
- https://static.usrfiles.com/ugd/b8c837_de70664321e94bd5ae1b2183916fa764.pdf
- https://static.usrfiles.com/ugd/dbbfd0_b3dfbeae6ce345d0b0b3f2009ca1fee8.pdf
- https://static.usrfiles.com/ugd/b77b08_29f0e9d0bbb94dcd87ec1044bbeef761.pdf
- https://cdn.shopify.com/s/files/1/0432/2128/7080/files/80379069089.pdf
- https://cdn.shopify.com/s/files/1/0432/6467/1909/files/japevijizedabanele.pdf
- https://cdn.shopify.com/s/files/1/0462/0134/0057/files/inspiron_14_5000.pdf
- https://cdn.shopify.com/s/files/1/0439/7809/6798/files/apple_balanced_scorecard.pdf
- https://static.usrfiles.com/ugd/24d943_bb29d8ad680648bd86418be0a410d8cb.pdf
- https://static.usrfiles.com/ugd/f95141_21ccd86352294c6ea85e29d89dbaf565.pdf
- https://static.usrfiles.com/ugd/7f929b_56a910e517d54c4bbf81de2aed0ae577.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006526.bin467eb15e1a6c655ff3ef549c7fe8f0738c37e10a1dcce476d927ac33fbfc522f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6526 | 4864 bytes |
font_01_sfnt_off000075cf.binc1a16a1f5a08453a3d91e5ce565c77360c0f8a9f44115d16388287637ae03baf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75CF | 10224 bytes |
font_02_sfnt_off00009904.bind78d7cc1a68daa951b4fbccbcfb906d5a08ad384f187125596154666a45abe72 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9904 | 16060 bytes |
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