MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains a URL that is also present in the list of embedded URLs, suggesting a deliberate attempt to lure users to malicious sites under the guise of providing piano sheet music.
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/pify?keyword=ophelia+lumineers+piano+sheet+music+easy
- http://refeko.cegyan.com/uploads/1/3/2/6/132696212/naloxago-xujexiwivupe-bakomumaw.pdf
- http://files.alexseyreyes.com/uploads/1/3/1/4/131406391/1180850.pdf
- http://files.kelsey-rice.com/uploads/1/3/1/1/131164097/pomukuresalez-fudipukisitowit-buvevol-tigipefej.pdf
- http://dovebun.haikutokyo.com/uploads/1/3/1/8/131856669/fejalawugejij_gutibowix_mejekodano_bofuguzi.pdf
- http://files.plannedaspects.com/uploads/1/3/0/7/130739043/lipajizibulogo.pdf
- https://static.usrfiles.com/ugd/3e5d97_0417c708aca54197a87594fadaf35d8d.pdf
- https://static.usrfiles.com/ugd/b8c837_5e9fc9db0e64478096045226b572b620.pdf
- https://static.usrfiles.com/ugd/b97cba_c2b2ed49c49442f8bf934f3e1ad74204.pdf
- https://static.usrfiles.com/ugd/fd7405_eb8a3799baaa4fb7b00c3ad198c4973b.pdf
- https://static.usrfiles.com/ugd/b8c837_658a91e6d12544a3b1221d2717d0980e.pdf
- https://static.usrfiles.com/ugd/0dcf4b_21c48313e8e943ac8f63e7f1071671c0.pdf
- https://static.usrfiles.com/ugd/cafc24_d8dbaff051c9453182f97f7fb1a1afcf.pdf
- https://static.usrfiles.com/ugd/4bdc6d_b38c33fe2814403b978be25c031f7c95.pdf
- https://cdn.shopify.com/s/files/1/0438/0524/5601/files/boston_market_nutrition.pdf
- https://cdn.shopify.com/s/files/1/0438/3087/0173/files/matuwasawugaxenakigibalu.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_off000067d1.binb0121b362e870ca2663b81ff6e0b2d430e360ba3d1b8f014d364039cdc87c519 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67D1 | 5300 bytes |
font_01_sfnt_off000079ac.bin9e165bc60f7260f5c0bf0123f9791daf108bb3e6e7d7d206ae9e2ed4c0d732ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79AC | 15996 bytes |
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