Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c0b2e98d289db4…

MALICIOUS

PDF

80.2 KB Created: 2021-08-27 21:56:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 9e510d0df573975db3fd37247b4805e2 SHA-1: 8f8964f61354430725a68af4ae8441ffdde932d3 SHA-256: 14c0b2e98d289db40044daadc82771c033da2b009aab1f8bec53403d89c73432
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classification and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised or disposable hosting sites, likely for phishing or malware distribution. No scripts were extracted, but the structure and URL patterns strongly suggest a malicious document designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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 http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089973c6e31a---98049939893.pdf In PDF document text
    • http://biplano.eu/userfiles/files/dopebefimulopiwaginen.pdfIn PDF document text
    • http://handsonmontessoripk.com/userfiles/files/27818159923.pdfIn PDF document text
    • http://reikihaus.com/clients/75291/File/dikivarutupabibadobob.pdfIn PDF document text
    • http://e-park.es/img/uploads/files/tuvixa.pdfIn PDF document text
    • https://printjet.pl/pliki_user/File/gutenivubaxafikuzuvigu.pdfIn PDF document text
    • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610fe540cc5ff---fotijugopeluril.pdfIn PDF document text
    • http://paliukenas.lt/i/File/mubimofogodo.pdfIn PDF document text
    • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bc86815ef4958b26a3b77f39fc0f3465/94097131245.pdfIn PDF document text
    • https://speeddating.lt/speeddating/ckfinder/userfiles/files/94024952365.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16075c40c520ca---filatilaxikatelewizotez.pdfIn PDF document text
    • http://studiovalecchi.it/userfiles/files/jasuxeramuxosen.pdfIn PDF document text
    • https://slezanie.eu/userfiles/file/sefunug.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/e38eia57apkp6neaj6p6l41jf4/95021935862.pdfIn PDF document text
    • http://natur-pet.cz/webpagebuilder/ckfinder/userfiles/files/vinitabegunigowobunelup.pdfIn PDF document text
    • http://bbfrontedelmare.com/userfiles/files/11621358018.pdfIn PDF document text
    • http://falls67.com/clients/50406/File/bosuki.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/9a24b818a12ecf371826acf7398bad9b/83765062901.pdfIn PDF document text
    • http://dui-antidote.com/images/userfiles/file/23797232885.pdfIn PDF document text
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078f11f071d4---xurujoluzuvokofalilunum.pdfIn PDF document text
    • http://aloisiquadri.it/userfiles/files/susawajukapelitexasof.pdfIn PDF document text
    • http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/161238d7c460c8---40960047800.pdfIn PDF document text
    • https://subarini.ro/mm/file/morusavefodinofoga.pdfIn PDF document text
    • https://pielinks.com/UserFiles/file/10751886480.pdfIn PDF document text
    • http://debden.org/userfiles/file/81326036858.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=differentiate+sn1+and+sn2+mechanismPDF 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_off0000d598.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD598 10748 bytes
SHA-256: e300e720e21d70a95787abc6b3957a083d263d5390feaf9325f209f0b912173e
font_01_sfnt_off0000ee39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE39 17008 bytes
SHA-256: 1897d95e299125c92f8e08bba1361bd734d853d6079b50a1729350169748aa51
font_02_sfnt_off00011a49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A49 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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