MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with one identified as a malicious redirector. The heuristic firings indicate a link farm designed to redirect users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious. The primary IOC is the malicious redirector URL.
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=academy+stars+6+workbook+pdf
- http://files.trentriverdesigns.com/uploads/1/3/1/6/131636692/8220645.pdf
- http://dutaxat.victoriouslynicole.com/uploads/1/3/1/4/131408738/662179.pdf
- http://files.thepowerhouseuk.com/uploads/1/3/2/6/132695862/5660009.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://cdn.shopify.com/s/files/1/0430/3519/7602/files/jusawodibofaguzixazemov.pdf
- https://cdn.shopify.com/s/files/1/0433/3414/0056/files/du_sort_by_size.pdf
- https://cdn.shopify.com/s/files/1/0429/2391/7478/files/70726637544.pdf
- https://cdn.shopify.com/s/files/1/0439/0807/1576/files/komoximuz.pdf
- https://cdn.shopify.com/s/files/1/0438/4423/9510/files/barron_s_gre_book.pdf
- https://cdn.shopify.com/s/files/1/0432/4245/5207/files/sweet_jane_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0437/9649/6544/files/71254095049.pdf
- https://cdn.shopify.com/s/files/1/0428/6529/5526/files/warusomodafofikelalezotem.pdf
- https://cdn.shopify.com/s/files/1/0434/4155/3575/files/50_ways_to_leave_your_lover_chords.pdf
- https://cdn.shopify.com/s/files/1/0440/2970/6390/files/20360961014.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/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000436b.bin540beecec68c7a76a6015b22bb361f804fa06703e85efd3b9c95788276cf73d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x436B | 5444 bytes |
font_01_sfnt_off00005601.bin5c152f21cd13fab7ec6a0631ca0322110d4d127b5a1c636dcb9c8d60f280d417 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5601 | 9972 bytes |
font_02_sfnt_off00007797.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7797 | 4324 bytes |
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