Malicious PDF — malware analysis report

Static analysis result for SHA-256 aea42adf1054fd55…

MALICIOUS

PDF

79.1 KB Created: 2021-07-08 20:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: d990274ba916a3d58bf8bbe1231042ce SHA-1: 90182250093a10f351300d32b2ae8e22100bfbc7 SHA-256: aea42adf1054fd55a7342ad21aaaac3621f1ab099ae4de0c8f453be9fbafadfe
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that form a link farm, directing users to potentially compromised websites or disposable hosting. The presence of these links suggests an attempt to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://philabc.ru/uplcv?utm_term=thank+you+lord+for+making+me+whole+lyrics PDF link annotation
    • http://adabaskimerkezi.com/upload/file/52656258521.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d65d87186---lebepuxov.pdfIn PDF document text
    • http://kulturazebrak.cz/userfiles/sasopidodiwibo.pdfIn PDF document text
    • https://bbgpiti.com/userfiles/files/52417312549.pdfIn PDF document text
    • https://denizlihorozu.com/resimler/files/dujepawiwuxo.pdfIn PDF document text
    • https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/e01d5c2pp0gcldkujef9h16uu4/gunojuturesisop.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/edae62017b59ce625a425771ce963ff9/57065919015.pdfIn PDF document text
    • http://lexen.ca/userfiles/files/36456642009.pdfIn PDF document text
    • https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/s6n2jpnnqsglkot52u751i13qh/90950162212.pdfIn PDF document text
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608209f599e4e---tiretidefujud.pdfIn PDF document text
    • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/bd623becbc22ba4d93a8adba377e5ed7/23541529660.pdfIn PDF document text
    • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/0adb68989f2104e317b9216f06611812/mipami.pdfIn PDF document text
    • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609408f3721cb---bejazipewum.pdfIn PDF document text
    • http://status-go.net/gfx/userfiles/files/naniz.pdfIn PDF document text
    • https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/523346cc4ba025609ec735c5939e962e/loxerixewunigol.pdfIn PDF document text
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098137a717a1---wikufafolosi.pdfIn PDF document text
    • http://www.europesolidaire.eu/userfiles/files/29433694651.pdfIn PDF document text
    • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/1343f7b401103de5189884b3fc18e340/31201926097.pdfIn PDF document text
    • http://gardnersunited.com/clients/e/eb/eb3320446930dd457027df34457c622b/File/detanuretiwogetunijabepi.pdfIn PDF document text
    • http://kuzfarm.ru/images/file/88595860015.pdfIn PDF document text
    • http://fjzy18.com/image/uload/files/98130969381.pdfIn PDF document text
    • https://mimpishio1.com/contents//files/82524190841.pdfIn PDF document text
    • http://www.buildingmalawi.com/images/uploaded/documents/18113892933.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://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_off0000ceb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB8 11180 bytes
SHA-256: d90fe4e7856a18f970b3f67173f0dfe4caa499d9af6887d8cfaf5312c91403b7
font_01_sfnt_off0000e885.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE885 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10097 17644 bytes
SHA-256: 7f848e26f2a18457cae20cc0ec2494d205ef1056ea575e68e72a98db2b3c4e5a

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