Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2baeac5a6a0488d…

MALICIOUS

PDF

87.8 KB Created: 2021-07-06 22:17:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: d1b2ae74320e9208822918ff1af11361 SHA-1: 309141f55b8075b74aa54f19f3edf5d051c485e7 SHA-256: b2baeac5a6a0488dce660ba8274fe04aeeb4f23e04b19d8f478a7f1a5201a442
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a payment redirection lure and ClamAV detection. The document likely aims to trick users into believing there are changes to payment instructions, a common tactic in business email compromise attacks. While no scripts were explicitly extracted, the presence of numerous links to compromised websites and disposable hosting suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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
  • 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://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/fddbc53797eafb377d39f4fac3953ece/kiwekokolulafiv.pdf In PDF document text
    • https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/b60a07db5176e586ad16789562ec1b8c/wamepumolikebafujivara.pdfIn PDF document text
    • http://parkhigh65.com/clients/4970/File/95663809489.pdfIn PDF document text
    • http://cementfeet.com/userfiles/file/jiwewonuzatobipiki.pdfIn PDF document text
    • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b923780ae78---kabogasel.pdfIn PDF document text
    • http://absolutelyneon.com/userfiles/file/kilowofopixarupefadaraxe.pdfIn PDF document text
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16091388fe92ea---xobojexuvipizifejuje.pdfIn PDF document text
    • https://igruppe.no/ckfinder/userfiles//files/lukupibolebixi.pdfIn PDF document text
    • http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b025355304---wojesuzesot.pdfIn PDF document text
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b2cbb2d4f41---zamuwizogukowowev.pdfIn PDF document text
    • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/5e794b63a7a7c7a929b3c5b0efeb74b9/mufurezeguweb.pdfIn PDF document text
    • https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/1ab84e7e88ab5ec5df9d483ea9608b1d/sunujosepigo.pdfIn PDF document text
    • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/424896c197d724889eaca2e3c4c2b9f5/29643939920.pdfIn PDF document text
    • https://mimpishio2.net/contents//files/24249728145.pdfIn PDF document text
    • http://aelma.com/sites/default/userfiles/file/68461149606.pdfIn PDF document text
    • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/d99c2dc228a44b0a4daa2bfecf432a05/nawuwijezu.pdfIn PDF document text
    • http://meteosputnik.ru/userfiles/file/53664842963.pdfIn PDF document text
    • https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/elp95bor75gq4j36enkjo3s6jg/67608478975.pdfIn PDF document text
    • http://www.jokilaaksonratsastajat.fi/file/sinodutepukopuke.pdfIn PDF document text
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b639a836850---94714107997.pdfIn PDF document text
    • https://takeorders.online/wp-content/plugins/super-forms/uploads/php/files/ubo9r1t078jm1rsndqd5hpik77/givojimolozet.pdfIn PDF document text
    • https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/bfbb681fe6f9feac073597c83abd12d7/76773042716.pdfIn PDF document text
    • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/dd5d8d8c440a2593bfa17f2e3e93243a/futatirovelot.pdfIn PDF document text
    • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/b1a7d2f883279f93ced552b77546f22a/mubewinowa.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=transformers+characters+names+and+picturesPDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f26e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF26E 10904 bytes
SHA-256: 0bc0cf49b500da1dfc6cc7301b9e3b7c8b9779bb3b4527d3d1a7f83399394ccb
font_01_sfnt_off00010b7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B7B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001238d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1238D 16968 bytes
SHA-256: e2509bb93554848d59f545e71363533e10da204e11d5d5ec8f1d9bf21510a295

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