MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link to a redirector URL, which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'chain reaction single player apk' and the malicious URL itself, suggesting a lure for users seeking this application. The PDF also hosts a large number of external links, many pointing to benign content, but the primary malicious link is the critical finding. 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.link/wix?keyword=chain+reaction+single+player+apk
- https://static.usrfiles.com/ugd/b8c837_5c21f3a9479542fc966c7fa7896050f6.pdf
- https://static.usrfiles.com/ugd/b8c837_43cdedc5c9ef437aaec158e14bc2b1c2.pdf
- https://static.usrfiles.com/ugd/3ceeb9_c351ff0ecfd841a086e995db4947d541.pdf
- https://static.usrfiles.com/ugd/4d548e_c1b21dc4132a432b8bd5fd5c65af70f1.pdf
- https://static.usrfiles.com/ugd/b91566_4d1ac41e3e2d4651915404f2697ec49a.pdf
- https://static.usrfiles.com/ugd/704566_fd20c9b96e984d588ed8064c76dca719.pdf
- https://static.usrfiles.com/ugd/a474dd_a079daa0c3db472d83e1558e46c95fc8.pdf
- https://static.usrfiles.com/ugd/205ae4_d125126c73154aa295de7916d9383477.pdf
- https://cdn.shopify.com/s/files/1/0437/6395/7914/files/ten_sports_live_app_free.pdf
- https://cdn.shopify.com/s/files/1/0431/3546/7682/files/dekobawidapowufod.pdf
- https://cdn.shopify.com/s/files/1/0431/5817/5906/files/english_grammar_tenses_with_examples.pdf
- https://cdn.shopify.com/s/files/1/0439/6908/5598/files/23752735436.pdf
- https://cdn.shopify.com/s/files/1/0430/3699/9842/files/first_aid_step_1_2018_free_download.pdf
- https://cdn.shopify.com/s/files/1/0427/6387/8566/files/free_expense_tracker_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0429/3410/8323/files/49027326905.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_off00004fdb.bin3c6c3bddf6b5877122d4e3ad216413d4bba96a30c53bcc9fcd723ee2ffcf03d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4FDB | 5264 bytes |
font_01_sfnt_off000061c3.bin07789509421786daffa2fe9da4e38b6e505c1808ae1fd1c44fd81c528b4e2b84 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61C3 | 10344 bytes |
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