MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as an 'Aptis vocabulary test pdf'. The document also includes a large number of links to other PDFs, many hosted on shopify.com and static.usrfiles.com, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.
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=aptis+vocabulary+test+pdf
- https://cdn.shopify.com/s/files/1/0435/0250/2048/files/genonitan.pdf
- https://cdn.shopify.com/s/files/1/0430/8592/2466/files/72705837158.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gekisemegudifusoledo.pdf
- https://static.usrfiles.com/ugd/9904c2_187b19d606f3482997ab9de65d0703c8.pdf
- https://static.usrfiles.com/ugd/d55797_aad83cb436ec4f9092405b899f2a7317.pdf
- https://static.usrfiles.com/ugd/b8c837_e715faea046f4d9eb43389ae93912a61.pdf
- https://static.usrfiles.com/ugd/5b9a87_904d93a17d93470da2059d53d5467246.pdf
- https://static.usrfiles.com/ugd/01e791_12e25088d8c0418697515ed69c4463d4.pdf
- https://static.usrfiles.com/ugd/57c819_965e9f690eb04e10ad7d2f65dbe8c6c0.pdf
- https://static.usrfiles.com/ugd/6c98bc_c5b4e7a9387b45eb82add214435becfd.pdf
- https://static.usrfiles.com/ugd/b8c837_2be2b8c580584df0ae00f4b5383ff0ce.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_off000062da.binf7356483ebc50f384f4d05165a5b0b23facdbb381107f9873f7b8480ea88d88f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62DA | 5440 bytes |
font_01_sfnt_off00007568.bin05ca70582e2ba7eaf92a66b98c2003c92012dd229c751f94f37d224081252a07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7568 | 11496 bytes |
font_02_sfnt_off00009bd4.bin531e37f64a2e7dc3bfb257675d9e6c644c7b1597f33ba9a969cd005a7ed65660 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9BD4 | 16312 bytes |
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