MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous embedded URLs, with one prominent external URI pointing to 'https://bologen.ru/strik?utm_term=auld+lang+syne+song+lyrics+english+version'. The PDF also functions as a link farm, hosting multiple links to other PDFs on disposable domains, indicating a likely attempt to distribute malicious content or conduct phishing. No scripts were extracted, but the PDF structure and embedded URIs strongly suggest a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://bologen.ru/strik?utm_term=auld+lang+syne+song+lyrics+english+version PDF link annotation
- https://static.s123-cdn-static.com/uploads/4422890/normal_5fde11a5a7b97.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4390684/normal_5ff34ddfcb24e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383460/normal_6014678a753a7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.opentle.orgIn PDF document text
- http://kubagaxupusu.epizy.com/4455248394.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5fae1046-db85-4079-9bb9-c5172aaeb7b9/why_is_my_wacom_tablet_not_working_on_mac.pdfIn PDF document text
- https://8084a2ae-6cfb-493d-8155-0d4219c0f7e3.filesusr.com/ugd/5b3528_8a74182c532240ce95ae0781be755031.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c4d26743-23f1-4bf8-b587-ac8b4811ae68/30358764781.pdfIn PDF document text
- https://49550882-97ce-44db-a38b-6e383bb81149.filesusr.com/ugd/062c90_32a8593539fe42d5bdca76fdea6701f2.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/pekatikisuruki/kanubilewevewugafemowa.pdfIn PDF document text
- https://fb413987-6e77-4bf1-aaa6-e97eb550fbee.filesusr.com/ugd/108936_1422c9b7840346468b84b29fd9542e55.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/votawawo/jetujelixedivexibo.pdfIn PDF document text
- http://puredaw.rf.gd/com._cyanogenmod._account_apk_android.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8f1f1dca-8578-4d02-9bd2-94a111d5b250/craftsman_garage_door_opener_keypad_reprogram.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/93528da8-a1f6-4eb8-9714-a7e5f79b857a/97234287105.pdfIn PDF document text
- https://b1d4f555-1eac-4d61-aa83-27206cf3ee4b.filesusr.com/ugd/1706f5_06d9e9e580ed4bba8f22e39071ac4039.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bojafazes/54366579402.pdfIn PDF document text
- http://zigimavabixexib.epizy.com/49372083299.pdfIn PDF document text
- https://s3.amazonaws.com/veraxawewib/what_is_2nd_order_reaction.pdfIn PDF document text
- https://f8e303d0-f350-43d2-b7c3-f886ef13ec25.filesusr.com/ugd/1bb397_26530ea6d1af4a97adb6f1428d5bc260.pdf?index=trueIn 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://www.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00013710.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13710 | 3664 bytes |
SHA-256: fb9fafe076fd491a1363fbe03d04ae890253349b5f6532040f9caa7a17650952 |
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font_01_sfnt_off0001442e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1442E | 5352 bytes |
SHA-256: 7ca6b2e3f6c91e0a5a55a1d6e7a15aa2127871b785bc111c2e5400e2c2511815 |
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font_02_sfnt_off0001565e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1565E | 7032 bytes |
SHA-256: d9196a43bc9edccef4bdccd5aa844f7ad6eb9a6b399b27830468e06794edef1b |
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font_03_sfnt_off00016974.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16974 | 14300 bytes |
SHA-256: aaca80cdc59a709b6e3714284e3513283c97034095e91f05e1c88cfc6d1ea129 |
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