Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6f4959072d469ff…

MALICIOUS

PDF

68.1 KB Created: 2021-03-13 23:05:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bab3162629a7128b8cb75fc8eca85b51 SHA-1: 82ea0aa7fa1b53e946e2d23e990a2feda5b9c8da SHA-256: e6f4959072d469ff6cc7a5c86957e06b272559b276996824d520a1ed1e3a6944
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, many hosted on disposable domains, indicating a link farm or phishing attempt. ClamAV detected it as Pdf.Phishing.Trojan, and ML classifiers also flagged it as malicious. The embedded URLs suggest the document's purpose is to redirect users to potentially harmful sites for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7003

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/award?keyword=america+history+of+our+nation+workbook+pdf PDF link annotation
    • http://lalashoppen.online/139603715761l8vb.pdfIn PDF document text
    • http://xegazinijitup.mywebcommunity.org/whats_another_word_for_non-aggressive.pdfIn PDF document text
    • http://de-bewertung-id-q2e5t23.top/aptitude_question_and_answer_for_bank_examf3wg5.pdfIn PDF document text
    • http://sellforce.ru/bear_cruzer_x_weight_adjustmentxroh9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447877/normal_60108d00ba7ac.pdfIn PDF document text
    • http://pewadulojuba.mypressonline.com/jarav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500878/normal_6036188cc3374.pdfIn PDF document text
    • http://evromotors.net/17418777237qatl3.pdfIn PDF document text
    • http://xisumagogali.getenjoyment.net/41033941849.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482415/normal_604495cfa3487.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://45f0f727-c607-4398-b3b7-8b42e23b21b2.filesusr.com/ugd/0a84ca_0063f77e925542ad8c5ef2a94f64cbd1.pdf?index=trueIn PDF document text
    • https://d4cba69e-f3c5-4a64-9e40-69ba24924691.filesusr.com/ugd/b73feb_671e822bcd1441f3bfa107743460f1c5.pdf?index=trueIn PDF document text
    • https://1cbf0fd9-62af-4102-a3dc-982f361539e7.filesusr.com/ugd/bfbc46_c0fa24d3bd7f4aa8966e2fe09ff30a78.pdf?index=trueIn PDF document text
    • https://4900ecec-7ac1-411c-be2c-b077674085c8.filesusr.com/ugd/493135_ac4e64080f054d438d8e89f6ff7f3bd4.pdf?index=trueIn PDF document text
    • https://92ddf5cc-4ce7-4caf-b117-8241c553a727.filesusr.com/ugd/42bae0_d63fa932fa794a48b5df1f052630ae0e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/android_best_graphics_offline_games.pdfIn PDF document text
    • https://8641c524-1fb5-4292-87ed-dd72f64d6c22.filesusr.com/ugd/9b7d8a_fa334e6b45884eb3a61351a299de294e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/70162466371.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/rabufak.pdfIn PDF document text
    • https://92e0cadd-ca3c-497d-ba7d-1aece6ee6da0.filesusr.com/ugd/008e52_dd2fbff359dd4f42aa86e4103881d2d8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/davawina/interoceptive_exposure_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/78443830267.pdfIn PDF document text
    • https://6f465708-eb37-4ee2-8658-ebeec6cd93ea.filesusr.com/ugd/4bb103_cdcde160a8e24e4b9da1c1159b3976cb.pdf?index=trueIn PDF document text
    • https://b1b1ed1d-a631-407f-b8a0-2f609481a9c2.filesusr.com/ugd/3e5895_2af8deff28104448ad536f1856fd6e6c.pdf?index=trueIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A1 5748 bytes
SHA-256: 4ee0e456aa29af8381394b1d69a4dda328683dbf7f4f5e36b33b0b5630d7ea90

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