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. The document body, though partially corrupted, suggests a lure related to educational worksheets. The primary malicious indicator is the PDF_MALICIOUS_REDIRECTOR_LINK heuristic, which identifies the link to ttraff.ru as malicious. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.
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/pify?keyword=free+counting+money+worksheets+3rd+grade
- http://files.starlightmessages.com/uploads/1/3/2/7/132741110/5601291.pdf
- https://cdn.shopify.com/s/files/1/0447/6711/7463/files/linear_algebra_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0434/5430/0312/files/captain_planet_ft_kidi_song.pdf
- https://cdn.shopify.com/s/files/1/0433/4111/9647/files/que_es_una_biometria_hematica.pdf
- https://cdn.shopify.com/s/files/1/0431/7026/7300/files/asylum_book.pdf
- https://cdn.shopify.com/s/files/1/0432/9344/2208/files/iiser_aptitude_test_2018_question_paper.pdf
- https://cdn.shopify.com/s/files/1/0436/0513/1421/files/52608365013.pdf
- https://cdn.shopify.com/s/files/1/0431/0820/4701/files/iatrics_visual_flow_sheet.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdf
- https://cdn.shopify.com/s/files/1/0439/0620/3803/files/pictures_of_catholic_symbols_and_their_meanings.pdf
- https://cdn.shopify.com/s/files/1/0432/3350/9534/files/87309034476.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/android_mobile_phones_below_6000.pdf
- https://cdn.shopify.com/s/files/1/0429/9961/1555/files/vexefov.pdf
- https://cdn.shopify.com/s/files/1/0428/3367/4396/files/63956824303.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_off00006c8d.binc8c99177f9d06f3ee5f7024af1a6d09f468934edf4f215d4554bb3c1a78e1940 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C8D | 5700 bytes |
font_01_sfnt_off00007fd6.bin6cf1d15517c9dbf2c36d70bf0ad9ee233f00b835a259c6d3f4a7fc3365b853b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FD6 | 10456 bytes |
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