MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1534 Steal Web Session Cookie
T1059.007 JavaScript
The PDF document contains heuristics indicating it is a brand-impersonation credential phishing lure for Instagram, using an abused redirector to point to a malicious PDF. The document also contains a large number of external links, many of which are on disposable hosting, suggesting a link farm or SEO abuse tactic. The embedded URL 'https://traffine.ru/aws?keyword=feed+us+5+unblocked+hacked' and the redirector URL 'https://ratigejav.weebly.com/uploads/1/3/4/5/134576845/6c289.pdf' are identified as key indicators of compromise.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://ratigejav.weebly.com/uploads/1/3/4/5/134576845/6c289.pdf.
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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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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External URI info PDF_URIPDF contains an external URL action
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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://traffine.ru/aws?keyword=feed+us+5+unblocked+hacked PDF link annotation
- https://cdn-cms.f-static.net/uploads/4379219/normal_5f93d5c5906d6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369907/normal_5f8f8a3a60de2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371514/normal_5fa6ec5bdf439.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375509/normal_5f8b69a655132.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383138/normal_5f955b60c8dfc.pdfIn PDF document text
- https://ratigejav.weebly.com/uploads/1/3/4/5/134576845/6c289.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367912/normal_5f8a31c8d5bae.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410703/normal_5f991ba0b0d24.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://devegukow.files.wordpress.com/2020/11/4236770437.pdfIn PDF document text
- https://regafuxexa.files.wordpress.com/2020/11/nakebiguvikig.pdfIn PDF document text
- https://s3.amazonaws.com/kawotexulozax/54346796884.pdfIn PDF document text
- https://pukewakedal.files.wordpress.com/2020/11/zobozewurodebiw.pdfIn PDF document text
- https://fevenakom.files.wordpress.com/2020/11/68805348961.pdfIn PDF document text
- https://gefavene.files.wordpress.com/2020/11/soaps_and_detergents_project.pdfIn PDF document text
- https://s3.amazonaws.com/tenunud/duvumat.pdfIn PDF document text
- https://jogamoje.files.wordpress.com/2020/11/el_almacen_de_las_palabras_terribles_libro_completo.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000069d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69D9 | 5212 bytes |
SHA-256: 551229913fc35402e0cd309c072d5a2a09d4643401a3857424612a0f5a5599a1 |
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font_01_sfnt_off00007b96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B96 | 10756 bytes |
SHA-256: 9e73fe0c71b8cf9b60692c1af1c3abcce030e4a93f0fad82839aeef3ca761695 |
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font_02_sfnt_off0000a021.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA021 | 16084 bytes |
SHA-256: b4071eb911d8dc62449cbe34e7b91a69a4d2916191845e014595e4e5e6ec2879 |
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