MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that lead to a redirector service, which in turn points to a malicious URL. The document body, though heavily obfuscated, contains text related to 'multiplication worksheets grade 4 with answers' and the malicious URL itself. This suggests a social engineering tactic to trick users into clicking the link, likely to download further malware or lead them to a phishing page. The ML classifier strongly supports the malicious nature of this PDF.
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/pify?keyword=multiplication+worksheets+grade+4+with+answers
- http://files.suzannepetrizzi.com/uploads/1/3/0/8/130813645/safez.pdf
- http://dezobimo.cecilyculver.com/uploads/1/3/2/7/132740880/6f2ae6d.pdf
- http://files.meteorite-village-happytour.com/uploads/1/3/1/3/131380107/4838703.pdf
- http://sepazul.uusintaensemble.fi/uploads/1/3/1/6/131637254/4408498.pdf
- http://zuwene.pitsstore.com/uploads/1/3/1/4/131438096/bcef2421b1c1.pdf
- https://cdn.shopify.com/s/files/1/0435/7344/4767/files/baperogupuvana.pdf
- https://cdn.shopify.com/s/files/1/0437/6638/2746/files/eu_gmp_annex_1_2020.pdf
- https://cdn.shopify.com/s/files/1/0431/3343/6066/files/fepilegetetawazaduto.pdf
- https://cdn.shopify.com/s/files/1/0433/9639/9265/files/all_bollywood_songs_lyrics_download.pdf
- https://cdn.shopify.com/s/files/1/0430/4191/5042/files/1496498384.pdf
- https://cdn.shopify.com/s/files/1/0431/4343/0305/files/fubajilekolagadogeme.pdf
- https://cdn.shopify.com/s/files/1/0434/0826/1287/files/balusunufetanamememutulu.pdf
- https://cdn.shopify.com/s/files/1/0428/5123/8047/files/p90_x_2_torrent.pdf
- https://cdn.shopify.com/s/files/1/0433/7300/2906/files/jasal.pdf
- https://cdn.shopify.com/s/files/1/0433/0261/7252/files/char_in_java.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80023348890.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_off000066a8.binb58752d94d05b266af3a9c8c7ab6cd5f82134fff4efd85b0ecde8efb400231eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66A8 | 5584 bytes |
font_01_sfnt_off000079bd.bin7c764e09909f92f1787a832e9c550de15c82efcfd9e4f3488abd94b0b1de3479 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79BD | 9948 bytes |
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