Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c08a0c1f40b8f6…

MALICIOUS

PDF

69.5 KB Created: 2021-02-26 07:13:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 873c2c3568f3d94e4cd537b689b55be0 SHA-1: b7b1221edda33d8d4fdc42ad2d78b0ac5e93f81c SHA-256: 46c08a0c1f40b8f61c98539cc1d137e357950677622aef0e96dce4e6e0a34255
184 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many pointing to disposable hosting, suggesting a link farm or SEO spam operation. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9678

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://crophysi.ru/award?keyword=harry+potter+and+the+goblet+of+fire+book+hardcover+first+edition PDF link annotation
    • https://xezatitewifesel.weebly.com/uploads/1/3/4/3/134393938/6639deb044fcb.pdfIn PDF document text
    • http://rumurel.mywebcommunity.org/40202387395.pdfIn PDF document text
    • https://cdn.sqhk.co/mogizufofuj/jbWoij4/43142168117.pdfIn PDF document text
    • https://cdn.sqhk.co/lazodadevab/iePRhcO/ding_dong_hostess_ingredients.pdfIn PDF document text
    • http://dodemul.mygamesonline.org/the_jazz_real_book_sax_-_eb.pdf.pdfIn PDF document text
    • https://cdn.sqhk.co/xexerekija/oRMjcjg/mafulurudevo.pdfIn PDF document text
    • https://cdn.sqhk.co/senuziker/ggjdifN/warriors_vs_raptors_game_6_schedule_philippine_time.pdfIn PDF document text
    • https://cdn.sqhk.co/nujusowidom/OQjijgF/10048800801.pdfIn PDF document text
    • http://ruguwafe.scienceontheweb.net/43444150781.pdfIn PDF document text
    • https://cdn.sqhk.co/wovegorarev/Cig7Oii/fixudinoduk.pdfIn PDF document text
    • https://fezadegijowazon.weebly.com/uploads/1/3/4/0/134096780/mewisit_daferidez_rofikexasuw_janufa.pdfIn PDF document text
    • https://cdn.sqhk.co/mogezunir/rFAPjiY/55714129958.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/ajeiiji/36978903877.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/bifadiwuwileji/adolescent_grief_and_loss_worksheets.pdfIn PDF document text
    • http://lojabupabavize.onlinewebshop.net/18709384981.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/24958821531.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/vobofetafomokaxomozudisis.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_off0000f696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF696 5744 bytes
SHA-256: dae07910240a70bc5571a97f85f9125d3865a500c2695800bac86083fa3e842d

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