Malicious PDF — malware analysis report

Static analysis result for SHA-256 9da019f7124ba5cd…

MALICIOUS

PDF

82.7 KB Created: 2021-02-27 00:52:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: ee5ddb14494ee54084f9e77c3f2f3feb SHA-1: e51fb239971f4a30cc153ab35e6aa136ad9dfb54 SHA-256: 9da019f7124ba5cda592276d03abd8be2f3fc0824fcc6212ce42dfac59167a84
254 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics as malicious, including brand-impersonation credential phishing and a link farm. The presence of external URIs and a link farm suggests an attempt to redirect the user to malicious sites. The ML classifier and ClamAV detection further support its malicious nature, indicating it likely serves as a lure for credential theft or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 8

  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://bonopabugo.weebly.com/uploads/1/3/4/5/134581776/kebotitogafa.pdf.
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://resalured.ru/aws?utm_term=excel+online+without+account PDF link annotation
    • https://cdn.sqhk.co/fipimomozuk/d9hjwhc/can_u_mix_oil_paint_with_water.pdfIn PDF document text
    • https://cdn.sqhk.co/foropogajag/e1ihZPZ/xexitubuf.pdfIn PDF document text
    • https://cdn.sqhk.co/butaliwe/1hhbqgj/wolfcraft_corner_clamps_review.pdfIn PDF document text
    • https://cdn.sqhk.co/figesuweno/igijhbV/starcraft_pop_up_camper_canvas_replacement.pdfIn PDF document text
    • http://zobotalemogi.sportsontheweb.net/relion_confirm_meter_manual.pdfIn PDF document text
    • https://bonopabugo.weebly.com/uploads/1/3/4/5/134581776/kebotitogafa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501656/normal_5fcc8cccdcde4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376625/normal_5ff144ef347a3.pdfIn PDF document text
    • https://cdn.sqhk.co/juzosugun/bqbhchg/slide_away_oasis_ukulele_chords.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388279/normal_5fc995463712f.pdfIn PDF document text
    • http://pinegobojefo.getenjoyment.net/entry_level_mechanical_engineering_jobs_memphis_tn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vujapoguxesak.myartsonline.com/noun_worksheet_for_class_3rd.pdfIn PDF document text
    • http://wadoromutisagar.myartsonline.com/81124572765.pdfIn PDF document text
    • http://zuputes.atwebpages.com/19534425817.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In 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_off00010944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10944 4732 bytes
SHA-256: 69c71e7d1c4b7eefdb7957968574ae1fa7fc4498cbef4908cea3f18c123fb186
font_01_sfnt_off00011973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11973 10592 bytes
SHA-256: 082762cf256f484661931ed19ca6eefe656bfcd27a77ff7512e1ee63ea824f8d

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