MALICIOUS
152
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.me/wix?keyword=writing+half+reactions+practice+worksheet+answers'. This URL is embedded within the document body, disguised as a link to worksheet answers. The ML classifier also strongly flagged this PDF as malicious. The document appears to be a link farm, with numerous embedded URLs, many hosted on static.usrfiles.com, likely to improve search engine ranking and lure unsuspecting users.
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/wix?keyword=writing+half+reactions+practice+worksheet+answers
- https://static.usrfiles.com/ugd/c3548c_cfbc03d64f9e42cb87b565a67b7115cd.pdf
- https://static.usrfiles.com/ugd/b8c837_663a55f8981a44bc82b73d35778bb442.pdf
- https://static.usrfiles.com/ugd/e5412a_cf840a01b95943709c70abe7ff6f6cd8.pdf
- https://static.usrfiles.com/ugd/e643da_9d7f9a7a40ab45acae46326f65563b7d.pdf
- https://static.usrfiles.com/ugd/10b11f_d5f6a3f6a0854c788cc4950e95401a88.pdf
- https://static.usrfiles.com/ugd/87a178_5163d26106cc47a09fbbe306a4b1dbee.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tokisesuzarutaxiwiru.pdf
- https://cdn.shopify.com/s/files/1/0433/1952/5534/files/92343291203.pdf
- https://cdn.shopify.com/s/files/1/0465/5012/2654/files/60231935434.pdf
- https://cdn.shopify.com/s/files/1/0449/9403/5880/files/face_sheet_mask_boots.pdf
- https://static.usrfiles.com/ugd/bb13a2_87bd7f4294114afda92113b6f3cb3ed4.pdf
- https://static.usrfiles.com/ugd/01bc73_5678ef6f09084c7485e68a733e958d7b.pdf
- https://static.usrfiles.com/ugd/440e29_594cba7919764e2a90497ba66fb29481.pdf
- https://static.usrfiles.com/ugd/1849a1_830016abff7d46a7b4ae3420392ceeda.pdf
- https://static.usrfiles.com/ugd/e2c6c1_c4ca92272b074b639ba88f5357b74123.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_off000066a1.bin0852b8c55f5f1e0bebf29d91eb5e4290e80f489ebfb6a2234a6d3a35616fc6e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66A1 | 5444 bytes |
font_01_sfnt_off00007949.bin9fbe8f2d8914ae7bbbb4bd94dc81c653785d23843592969c88d6e0cb86dc55d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7949 | 10688 bytes |
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