Malicious PDF — malware analysis report

Static analysis result for SHA-256 067e67300656eb15…

MALICIOUS

PDF

74.2 KB Created: 2021-05-30 06:37:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 46b130669569191645ef97bab79bc7af SHA-1: 2438c5a9d587316c5f27930c24f1bf34704a31d5 SHA-256: 067e67300656eb15ab9e8be9cc713d754711ea8e027307582365a11152f0d38f
184 Risk Score

Malware Insights

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

This PDF document functions as a link farm, directing users to various external resources, one of which is a lure for 'geometry dash apk hack 2.011'. The presence of numerous external links, many hosted on disposable domains, and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9837

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://pelibifir.ru/strik?utm_term=geometry+dash+apk+hack+2.011 PDF link annotation
    • https://fajuvupo.weebly.com/uploads/1/3/5/3/135310445/6ca9e1612682.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460677/normal_600d7d4500364.pdfIn PDF document text
    • https://sofugiri.weebly.com/uploads/1/3/4/5/134509821/1ac75047b45e2ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496597/normal_5ff2d796a4496.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471710/normal_604e5ccac676b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383801/normal_5fda7625efceb.pdfIn PDF document text
    • https://wudavatu.weebly.com/uploads/1/3/4/4/134457778/sirapuju.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4457008/normal_60b086084c478.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445125/normal_5fd67ff5bbf4d.pdfIn PDF document text
    • https://kadilawozozupaj.weebly.com/uploads/1/3/0/7/130739633/vipuwilomuz_tagoxalozevuj_niragij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369306/normal_606894e7341f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477637/normal_604af97f300d7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393883/normal_5fcb51b076dd7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474978/normal_5ff32b25970e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447276/normal_5fd631bc13841.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383160/normal_6049e80c2cace.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e094b06d-2253-46b4-b58b-6ead099392ab/what_are_the_main_components_of_early_childhood_curriculum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1014010f-e212-493b-8844-e885d73c8cc4/xoxofutozakanoxizerirame.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b254cfb-914c-41a7-ab02-f5cb753b58d0/what_are_gods_other_names.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1a7d3c8-dd6e-4be8-a3af-42bbecea38a0/question_behind_the_question_meaning.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED68 2880 bytes
SHA-256: 619a44e8b5c2a2d3fc0e18259d8022938ad4f8b30552901bc68dc41c3d0f2ef0
font_01_sfnt_off0000f7a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7A6 5836 bytes
SHA-256: 7547447a8f5c19bae38b17f69d4243db59ddcc7ff826b78a142b812050ee49c8