Malicious PDF — malware analysis report

Static analysis result for SHA-256 e07f57e53c3fbee1…

MALICIOUS

PDF

72.3 KB Created: 2021-03-16 23:49:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: c13ee45814eeee1f117fc3b20ae30f9e SHA-1: 45f31dc467870407c1c7b1e3c70d5e3e6f796d7e SHA-256: e07f57e53c3fbee1a68b65279832f1fec79f4f377e978a8bc08a618244f54e41
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document exhibits characteristics of a link farm, containing a significant number of external URLs. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, with one prominent URL being https://midufefew.ru/strik?utm_term=jane+eyre+art+type+edition. This suggests the document's primary purpose is to redirect users to potentially malicious sites, aligning with phishing or malware distribution tactics. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8148

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://midufefew.ru/strik?utm_term=jane+eyre+art+type+edition PDF link annotation
    • https://pusifife.weebly.com/uploads/1/3/1/4/131407530/5836032.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368989/normal_603f2a048ada4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459322/normal_5fcd8a9541b31.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366041/normal_5fdef18a5369c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366360/normal_5fd2a6853df3a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403673/normal_6014465ddd426.pdfIn PDF document text
    • https://xexigajusotojuz.weebly.com/uploads/1/3/1/6/131606060/jibogilu.pdfIn PDF document text
    • https://xumusozopojuvuj.weebly.com/uploads/1/3/1/3/131398507/fd23412891e3421.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/dashboard_templates_angular_4.pdfIn PDF document text
    • http://mojofukiw.epizy.com/asphalt_6_apk_obb_highly_compressed.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/competition_law_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1252e446-bb68-4a21-bbc7-4b1ae9e67745/nobotininugusasetusilipu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee2cfccd-7c1f-45e5-a735-8b19c7ed83cb/aqualink_rs4_how_to_cancel_program.pdfIn PDF document text
    • http://tenefotozefuzuw.rf.gd/oscars_2020_vote_online.pdfIn PDF document text
    • https://c4cd0dbc-23d7-4f11-b65f-2561cec8abe5.filesusr.com/ugd/516793_6c8842e96d714d09b6748e4cb7795fb4.pdf?index=trueIn PDF document text
    • https://63c5840e-267c-49ed-94d3-fc9f9d8b9c0b.filesusr.com/ugd/8c5bc8_1a666c437f714883a2206edebbac07cb.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ffd38de-7fe5-47ae-a33c-d82d431a7725/85431575135.pdfIn PDF document text
    • https://9de673a2-3b8e-40eb-bbf5-c0ad8e71a3da.filesusr.com/ugd/bd5c68_2e164ad2c97c4c058c339f9fa48315c5.pdf?index=trueIn PDF document text
    • https://8f1c0ae7-1ba6-4c51-a623-4d29f5e3aebb.filesusr.com/ugd/c1615c_ede08cf7a0284887b2e18492f6a9dabc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d18c8d6a-7199-4809-be58-6b0b1f833686/sisemipovutikotuladaxir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7475af4a-e430-4791-8ba4-b3a50c9eedd7/whats_the_difference_between_my_cloud_and_my_cloud_home.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_off0000f40d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF40D 4620 bytes
SHA-256: b31fa517ae091e59cd5fffa3150594f2a9690c5f52476094a0e3b9f00a37b5e6

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