MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. It contains numerous embedded URLs, with one prominent URL pointing to a suspicious domain that appears to be part of a link farm designed to redirect users. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, and the presence of external URIs and a link farm heuristic points towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://nipisod.ru/wix?keyword=robert+half+salary+guide+2020+uk PDF link annotation
- https://cdn-cms.f-static.net/uploads/4464874/normal_60367b06f0396.pdfIn PDF document text
- http://zoluwofemofuper.sportsontheweb.net/24049859123.pdfIn PDF document text
- http://lezobul.medianewsonline.com/39945444259.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491433/normal_602f30436b067.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481286/normal_5fdd22cf4a149.pdfIn PDF document text
- http://roxedizusugu.mywebcommunity.org/8152702180.pdfIn PDF document text
- https://cdn.sqhk.co/tabuguran/MPEjf3M/xowipiraj.pdfIn PDF document text
- https://cdn.sqhk.co/puvalonu/Rnjhwhb/sparkfun_inventor_s_kit_guide.pdfIn PDF document text
- http://zefujixa.mywebcommunity.org/18594602868.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485589/normal_602f3193f1c28.pdfIn PDF document text
- https://cdn.sqhk.co/bifoligi/36MgfdD/69206859426.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://6d706a39-1f93-4f1a-9423-caccf7e65e71.filesusr.com/ugd/69f91f_ba4b7b4c2da44771b8539cde80b76f70.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vukujidor/reformed_baptist_church_orlando_florida.pdfIn PDF document text
- https://s3.amazonaws.com/labitajaxatufib/operant_conditioning_practice_answer_key.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/092b1ead-12f9-4ed6-85a6-fdd72c796ff4/is_the_darkest_minds_series_finished.pdfIn PDF document text
- http://kawerulim.onlinewebshop.net/chrome_will_no_longer_support_flash_player.pdfIn PDF document text
- https://a3de454e-1598-42bb-a259-4eb69c42f179.filesusr.com/ugd/fb5067_e6d6c8d440994e889c7b4c9fbf661ca2.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/38f0edc6-a448-4459-9e24-8e313fae0146/environmental_ethics_can_best_be_defined_as.pdfIn PDF document text
- https://s3.amazonaws.com/daselex/lapomitenexagifur.pdfIn PDF document text
- https://77a80da1-97a3-4b40-ba11-54c6d232eb66.filesusr.com/ugd/39a0fd_9f903669ff4e4da791e30d36a28b8d32.pdf?index=trueIn PDF document text
- https://c3d762b3-5d50-4891-ab6d-43710edd2423.filesusr.com/ugd/3254bf_91ba68593101474191a31be6d60848ee.pdf?index=trueIn PDF document text
- https://36535336-4f9e-4c0a-b1ad-3385cb5d4299.filesusr.com/ugd/15ebe2_02194d27d6c1420b97b66870a61c2957.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/4eed1d60-6f23-4f2e-9da6-565b99e60f0e/77502805550.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_off0000e192.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE192 | 5756 bytes |
SHA-256: 1c45f870bff3ccd94e5666c379b4c51701826c29d575828bba8e287256535d4d |
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font_01_sfnt_off0000f533.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF533 | 10948 bytes |
SHA-256: 21735c6a6f64b9b1437899b254adfae683ad1156d7a82ff9801c7b0950fb6435 |
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