Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d6d7484f6e7b137…

MALICIOUS

PDF

147.3 KB Created: 2021-06-29 09:56:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 86e552613820368b9702759ac0c4ea26 SHA-1: 9ac076ea0adb71c0295e4fcbfb9c244378e6466b SHA-256: 0d6d7484f6e7b1377c7aac7995de5b8683b2a0fa7707a82aa5bb505f89018b83
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links pointing to compromised websites, many of which are hosted on disposable domains or use common CMS vulnerabilities. ClamAV and ML classifiers strongly indicate maliciousness. The presence of embedded URLs and the nature of the heuristics suggest this PDF acts as a lure, likely to facilitate phishing attacks or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9761

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/a0jqdkg4f7e69hmp7gckmqrsgd/zamopemowidoxurebutomopa.pdf
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bcf7acd05a4---tusajojuwikupedijivi.pdf
    • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/1733jqrtek3thshk1l0nh9g0i2/siroziv.pdf
    • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/82ce8fd4c921ce3d21d0e73f8634f138/20439756416.pdf
    • https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070335410c78---70812766791.pdf
    • https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160723b78a5cfc---93621345405.pdf
    • http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/0k0lbj1g8p5q5ms0o7hgbi2us1/dopupowifigoniva.pdf
    • https://motacademy.it/file/wisisod.pdf
    • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/1e49519accfc5d4c67db2aeb6d9fd7db/8715619310.pdf
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/6ji7ct0pq9kbeem1h3t0prqva1/wemituxugavasewi.pdf
    • http://thermogroup.ru/uploads/files/varunokegemamibimat.pdf
    • http://turhantur.com/turhantur/files/girisolepipazilipiketema.pdf
    • http://someteme.com/archivos/_20210617190036.pdf
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9609eee93---jomoseretirolitomubib.pdf
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa7acaac4ac---ragivetikeropuzegarat.pdf
    • https://evergreencans.com/userfiles/file/nafowilezekozupupotes.pdf
    • http://tablica-nieruchomosci.pl/uploades/fckeditorfile/vazokojiv.pdf
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160836108a3c61---jugovitivoderidib.pdf
    • https://socohoteldanang.com/uploads/image/files/genup.pdf
    • https://hanahana.vn/media/ftp/file/kesofuzosumonewi.pdf
    • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/i36lvbpkjma477ool3snr27jh0/18769339118.pdf
    • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16097b64bcb9d6---mojukapiwudikulu.pdf
    • https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/6ee36cdbac338fdcf426f67d36dcbb3c/watodegavulozeganesuze.pdf
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/508128d00d9a5c86ba39c086cdcc6056/towogul.pdf
    • http://fisioterapiasuzzara.it/userfiles/files/bumazite.pdf
    • http://wskinbody.com/data/boardData/files/gabujevozunawejeba.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=why+did+mendeleev+change+the+order+of+certain+elements
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001cebe.bin
9e68504d0525c5111cfdaa5fb9a482cb6169734eed0035e3eff140a16e6a490b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1CEBE 25960 bytes
font_01_sfnt_off00020d40.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20D40 16792 bytes
font_02_sfnt_off00022557.bin
8565ed42703c4965f84cd3e027957795fa32f54cd363dd8d7d267ba79a601487		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22557 11096 bytes

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