MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded links, many of which point to disposable hosting, suggesting a link farm designed to distribute traffic. One of the primary URLs, 'https://ggtraff.ru/wb?keyword=ielts%20official%20guide', is identified as a malicious redirector, indicating a potential phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://ggtraff.ru/wb?keyword=ielts%20official%20guide In PDF document text
- https://cdn-cms.f-static.net/uploads/4366009/normal_5f87595d0894b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366055/normal_5f87af8b166e9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370525/normal_5f884979bc66b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365608/normal_5f8702731d567.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366041/normal_5f872246c511c.pdfIn PDF document text
- https://site-1038337.mozfiles.com/files/1038337/68732282380.pdfIn PDF document text
- https://site-1037211.mozfiles.com/files/1037211/65899098037.pdfIn PDF document text
- https://site-1043294.mozfiles.com/files/1043294/lotomazubozetevev.pdfIn PDF document text
- https://site-1040251.mozfiles.com/files/1040251/garezeruzosubo.pdfIn PDF document text
- https://site-1037120.mozfiles.com/files/1037120/81451348379.pdfIn PDF document text
- https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/didus-zafuvij.pdfIn PDF document text
- https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/vusefugebemoguxowi.pdfIn PDF document text
- https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/zubezebarogala_masisemofo_kadag.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5506/9849/files/how_to_hack_farmville_tropic_escape_android.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0482/4203/2794/files/dragon_age_inquisition_judgement_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0484/1983/1962/files/2020_animal_jam_codes_for_pets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8335/6565/files/tudawagelagavasudewem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0488/2772/8037/files/64294765037.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7de5d51d-7abb-4f42-bcd9-a408c5780e73/superi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ee2dd699-5a22-4af4-853d-85e869eee248/visevagizivapemojureres.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006994.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6994 | 5028 bytes |
SHA-256: 55e9401f7261cbfc1a15fd77e7d518a97e98724d7fb174c2eaaba78a3d4fd4f5 |
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font_01_sfnt_off00007ac2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AC2 | 10876 bytes |
SHA-256: 2afe77592ac804fe2d6bc0d8a315e5119003962dfcd26538dae6f42601df1d52 |
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