Malicious PDF — malware analysis report

Static analysis result for SHA-256 24956cfec266cffe…

MALICIOUS

PDF

70.7 KB Created: 2021-06-04 04:37:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0d72732d522c513f9b08397a316dbcd5 SHA-1: 8662be239780a245df36c460001a41e2c6ce49d5 SHA-256: 24956cfec266cffe332917fe831bf7a6215ad2286b5d6dad15cfbf7896908c9c
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7004

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://drafthe.ru/pbw?utm_term=eclipse+phase+2nd+edition+pdf+free PDF link annotation
    • https://xasejudezorakoz.weebly.com/uploads/1/3/0/8/130813307/tesaxegekusifofepe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378846/normal_5ff941eb45f8e.pdfIn PDF document text
    • https://mifurujuxix.weebly.com/uploads/1/3/3/9/133997148/sibumebiza-jubixidemuf.pdfIn PDF document text
    • https://veranaza.weebly.com/uploads/1/3/4/6/134665567/7252661.pdfIn PDF document text
    • https://jebasunegafepes.weebly.com/uploads/1/3/1/6/131637224/5735823.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390637/normal_602c68092397a.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/5804638.pdfIn PDF document text
    • https://suniponemiviku.weebly.com/uploads/1/3/1/6/131636748/zixakimeteras-migafazo-sonijovuji.pdfIn PDF document text
    • https://xexunejakex.weebly.com/uploads/1/3/4/2/134266262/bdc2119a1ae.pdfIn PDF document text
    • https://xeludopoveju.weebly.com/uploads/1/3/4/5/134528604/wivatafa_lezaxixo_runitaxok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427538/normal_605bf1ec37e03.pdfIn PDF document text
    • https://bewotababuruga.weebly.com/uploads/1/3/1/1/131163836/ce976e0e0970569.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454040/normal_6019dafa53809.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467019/normal_6033e63ed71ff.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vulazojab.pbworks.com/w/file/fetch/144574491/kivexerasupubesilun.pdfIn PDF document text
    • http://werinenimuta.pbworks.com/w/file/fetch/144516999/evinizdeki_terapist_indir.pdfIn PDF document text
    • http://kolasotosexu.pbworks.com/w/file/fetch/144413559/27295611233.pdfIn PDF document text
    • http://nukuxim.pbworks.com/w/file/fetch/144485520/99304006892.pdfIn PDF document text
    • http://visetululiv.pbworks.com/f/how_do_i_find_world_war_1_service_records.pdfIn PDF document text
    • http://visetululiv.pbworks.com/w/file/fetch/144422265/modo_de_produccion_primitiva_caracteristicas.pdfIn PDF document text
    • http://giresizuloki.pbworks.com/f/17199414328.pdfIn PDF document text
    • http://xifilipisi.pbworks.com/f/can_i_use_vicks_humidifier_with_newborn.pdfIn PDF document text
    • http://nunaruribeg.pbworks.com/w/file/fetch/144411669/how_to_find_gmail_account_location.pdfIn 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_off0000f166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF166 5332 bytes
SHA-256: e7df786401fd977fd54794e796ce4dbd07934026409d6b13f0d52b9c676eed70

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