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, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.ru/wb?keyword=teaching%20description%20worksheets. The document body is heavily obfuscated, but the presence of numerous external links suggests a lure for SEO poisoning or phishing campaigns.
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.ru/wb?keyword=teaching%20description%20worksheets
- http://files.slicediaries.com/uploads/1/3/1/6/131606260/ritarijivomomur.pdf
- http://files.rrrca.org/uploads/1/3/2/6/132695333/d29eab18cf4681.pdf
- http://files.kathyschipperart.com/uploads/1/3/0/7/130739557/rarokefa.pdf
- http://files.johnwilliamsartgallery.com/uploads/1/3/1/6/131606069/2307407.pdf
- http://files.hightechtintplus.com/uploads/1/3/2/3/132302973/47aff28564.pdf
- https://cdn.shopify.com/s/files/1/0431/4670/7104/files/texivenugolulobepupu.pdf
- https://cdn.shopify.com/s/files/1/0437/8230/7989/files/17160723531.pdf
- https://cdn.shopify.com/s/files/1/0435/2330/9727/files/sear_snow_blower_repair.pdf
- https://cdn.shopify.com/s/files/1/0438/0088/7457/files/37773334227.pdf
- https://cdn.shopify.com/s/files/1/0429/3787/6639/files/boy_scouts_of_the_philippines_handbook.pdf
- https://cdn.shopify.com/s/files/1/0431/0751/6565/files/minecraft_xp_command.pdf
- https://cdn.shopify.com/s/files/1/0429/1103/9655/files/75236953594.pdf
- https://cdn.shopify.com/s/files/1/0431/5122/9089/files/tikefurusaniwofabazu.pdf
- https://cdn.shopify.com/s/files/1/0431/0935/1578/files/waminorilov.pdf
- https://cdn.shopify.com/s/files/1/0430/6845/7122/files/23496518011.pdf
- https://cdn.shopify.com/s/files/1/0434/1635/4977/files/bienestar_animal_en_mataderos.pdf
- https://cdn.shopify.com/s/files/1/0430/4565/0586/files/mejagotapisibexoronatuz.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_off000062b2.bin489e519e1e885fef4a7c80d3ddf20cc5c25a9f04f2c79f26216b0e080ff80a14 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62B2 | 5408 bytes |
font_01_sfnt_off00007526.bin06ebcbded1839b1811f69ea473c59eff694823763944f5b41ef6b57901de921b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7526 | 10136 bytes |
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