Malicious PDF — malware analysis report

Static analysis result for SHA-256 e506690a06a2f22f…

MALICIOUS

PDF

65.4 KB Created: 2021-03-14 20:45:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: d22d616fa4d538334f5c60811a9ab1f7 SHA-1: 21158525a8d2281faa16c3a183f5eda9168464e8 SHA-256: e506690a06a2f22f3f9cb56cee8409871f22810d828c6ef4294ed28cb778a6f9
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a large number of external links, many hosted on disposable domains, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9263

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One 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://druttle.ru/strik?utm_term=what+is+the+rule+of+30 PDF link annotation
    • https://vumusubivabup.weebly.com/uploads/1/3/4/4/134491869/8928933.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412889/normal_6030feb66afb4.pdfIn PDF document text
    • https://cdn.sqhk.co/poronujefino/jwgfAgj/ninja_jump_code._org.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404293/normal_601d24a7c3b8e.pdfIn PDF document text
    • https://cdn.sqhk.co/galemojubemo/9TghHig/lenovo_star_warstm_jedi_challenges_black.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393018/normal_6014bd9750620.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/haujbjg/74126311601.pdfIn PDF document text
    • https://cdn.sqhk.co/buzomesil/jiihgjj/nascar_speed_record.pdfIn PDF document text
    • https://cdn.sqhk.co/foradimotiri/iii2B30/qr_code_scanner_iphone_se_2020.pdfIn PDF document text
    • https://sikalejewop.weebly.com/uploads/1/3/5/3/135341852/wodizodagewul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476782/normal_603a23c90ebd5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://229c3593-bb94-4e5d-9b9f-ca3747df48ef.filesusr.com/ugd/145364_96e699fbffb7471faa01a5691cb53f9a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/70f8635e-50ea-4e1a-acbe-b4fece2804a2/bowflex_xtreme_2_se_leg_workouts.pdfIn PDF document text
    • https://200c4c3d-185b-4246-b99f-f40cd7065c99.filesusr.com/ugd/3ed902_1d53b2e73fcf4d5a87881247b7b212e1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/55202ff6-7d28-4153-ad83-4f591d60de06/14454372257.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/962ad5bb-9135-4f57-ac82-39891a43e096/36862729326.pdfIn PDF document text
    • https://27420876-d215-4860-9a72-f48db0d0c320.filesusr.com/ugd/4062c2_453ff13a3b324cc2ac941577818414ba.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c5e9297-a77d-4d83-9faf-fa815a0902ba/jenn_air_oven_repair_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/177aa4d0-4b81-4ab1-87b9-ef0bb40b7f61/15608512795.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c019ec2-c49c-4980-a2b9-b95b10e5b73a/vemutirejukasesuzex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3c2bf45-f98d-4bf8-9ba6-979049da2475/what_is_a_business_proposal_essay.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df94aa97-0140-4634-a59d-b2456b8269b4/diary_of_a_wimpy_kid_deep_end_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bd8f824-f6a0-4872-834b-4ae76a280d99/que_comer_cuando_te_sacan_muelas_del_juicio.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4DB 5176 bytes
SHA-256: 1e1fc03de2b2dfab31d90c8919a2e6aee2bd9e89b3c6e59b933217f91decf03e

Open this report in the interactive analyzer, or submit your own file for analysis.