Malicious PDF — malware analysis report

Static analysis result for SHA-256 b334300a3f2614f2…

MALICIOUS

PDF

67.9 KB Created: 2021-04-05 04:43:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0b86c357a85e67e9951de1a2b9bd1fe9 SHA-1: bfac3d84b3f9abcaf6a4788f4af5856ca656d990 SHA-256: b334300a3f2614f27ef0d6083693fe79aef9bb1522bf8745f8a3b696c6541b6e
124 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 embedded URLs, many of which point to disposable domains or link farms, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a common phishing lure, likely designed to lead users to credential harvesting pages or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7004

Heuristics 4

  • 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 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://leonvi.ru/award?keyword=ielts+academic+reading+papers+with+answers+pdf PDF link annotation
    • https://cdn.sqhk.co/difejekexe/jighhUv/oscar_de_la_renta_wedding_dress_used.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420239/normal_60074420499f6.pdfIn PDF document text
    • http://poverkavoda.website/guia_autometrica_agosto_2020a6wt8.pdfIn PDF document text
    • https://tovorugezix.weebly.com/uploads/1/3/4/5/134599805/6656591.pdfIn PDF document text
    • https://tiguziriwisil.weebly.com/uploads/1/3/1/0/131071210/pujavigozofuru_vamumivalus_zafebugeka.pdfIn PDF document text
    • http://christinaanddavid2019.com/samsung_a105f_root_file9yjc5.pdfIn PDF document text
    • http://feyakast.online/who_is_a_woman_of_noble_charactersj6op.pdfIn PDF document text
    • https://cdn.sqhk.co/nasanoroge/7zhd4KF/rotibekatamopatakit.pdfIn PDF document text
    • https://cdn.sqhk.co/kupemopo/U9igeXu/bumonodinaraveg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425224/normal_605ff4827cc70.pdfIn PDF document text
    • http://zoxifowivo.iblogger.org/69000263439.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444648/normal_604e2c2cc1418.pdfIn PDF document text
    • http://lg-copyrightforms.com/767005744475bybg.pdfIn PDF document text
    • http://gesajobode.22web.org/wumizafiwebiranije.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484805/normal_5ff678697e455.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kubozivomojiva.epizy.com/zadewodadimojotile.pdfIn PDF document text
    • http://duwawadava.rf.gd/68038781494.pdfIn PDF document text
    • http://puzamurepedo.rf.gd/49098975446.pdfIn PDF document text
    • http://gegukisakewomo.rf.gd/daredevil_season_2_imdb_parents_guide.pdfIn PDF document text
    • http://popaxaxi.epizy.com/67653232678.pdfIn PDF document text
    • http://rewosawobew.rf.gd/71312975258.pdfIn PDF document text
    • http://suludigana.epizy.com/jilodigoxoribevimu.pdfIn PDF document text
    • http://toxukanubevaga.rf.gd/aukey_dash_cam_dual_manual.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_off0000e3b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B6 5600 bytes
SHA-256: 8c5a18ad1bd507ff46c4e7ee43fb547b49d7d5099809ebf861e575ce55aae89e

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