Malicious PDF — malware analysis report

Static analysis result for SHA-256 46067d09477e6144…

MALICIOUS

PDF

151.7 KB Created: 2021-07-03 05:10:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 2f60810aecb986a81f27fcc136e4334a SHA-1: 116bbe1586dae2b42f47b78848a700b87c6bc7aa SHA-256: 46067d09477e6144aed9433acef280e733b3523235f53e5bc1133dba74e9ee96
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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://coretry.ru/uplcv?utm_term=global+inequality+meaning PDF link annotation
    • http://sun-eko.eu/files/file/75230829692.pdfIn PDF document text
    • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160cd0038b0be2---88482649997.pdfIn PDF document text
    • http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608048242b3c8---55308746847.pdfIn PDF document text
    • https://eingangrad.ch/userfiles/files/sefifatator.pdfIn PDF document text
    • http://virus-safe-zone.com/ckupload/files/lidariparekisamikujoru.pdfIn PDF document text
    • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/e9802a958ae386492a07f27ae6b0ece9/vipuki.pdfIn PDF document text
    • https://kiameds.com/images/upload/files/56239745755.pdfIn PDF document text
    • http://billsky.ee/files/file/wamopujofomutowexewubo.pdfIn PDF document text
    • http://dichvugiayphep.biz/upload/ck/files/wubolabifaxuwasiwatepoven.pdfIn PDF document text
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb21d4b3cb---lumopisevegoj.pdfIn PDF document text
    • https://badoza.net/userfiles/file/bekugetolilenuxutifujo.pdfIn PDF document text
    • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/2rha6q9763517887klkf3vup0m/31361714230.pdfIn PDF document text
    • https://agenciaboom.com/wp-content/plugins/super-forms/uploads/php/files/62rbctvtth8vatd7bmck59id75/65779737963.pdfIn PDF document text
    • http://pospatrans.cz/UserFiles/File/nixepaponafafure.pdfIn PDF document text
    • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/16083db9eec5eb---paxaxuwuso.pdfIn PDF document text
    • https://espiber.cl/images/uploadedimages/file/7919052509.pdfIn PDF document text
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8f907be049---52686094165.pdfIn PDF document text
    • http://ohmamakitchen.com/uploads/files/zoripolifomazoxobuzigux.pdfIn PDF document text
    • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/26eb7873cf568faf987d6a595812df82/60250793588.pdfIn PDF document text
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa8271e174---25663325105.pdfIn PDF document text
    • http://woodsfamilypride.org/clients/2/2c/2c83419adcf4927d74d3defe18342386/File/guzula.pdfIn PDF document text
    • https://nepalaviationmuseum.com/userfiles/files/82796514051.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_off0001eb30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EB30 21076 bytes
SHA-256: 5f16a09eff31641f6ba1d0e309a591bfa1b297781b2bdf7a0f756ee13656b655
font_01_sfnt_off000220b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x220B7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000238ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x238CE 10724 bytes
SHA-256: f76767f3eb19a270bdfe5e19073bd9c9cd891e8b382d22894bab251d775134ce

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