Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d29b4b61343d6d0…

MALICIOUS

PDF

86.1 KB Created: 2021-08-01 17:52:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 1567794776aaefe2e0f7abfb9a1bff32 SHA-1: b46e8b07403b3f562c2112dc77bbeeef92518f6e SHA-256: 2d29b4b61343d6d0194dd8fbb71d04c25b4ff9e09f983a0e21b8ea44669374be
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farm heuristics strongly indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://pixomot.ru/uplcv?utm_term=kenworth+t800+suspension+air+bags PDF link annotation
    • https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/16080eb2ed8797---latagopuseraxojimisakugok.pdfIn PDF document text
    • https://aduanaldelvalle.com/userfiles/file/xikafem.pdfIn PDF document text
    • https://forumhrdbekasi.com/webroot/userfiles/files/71692590136.pdfIn PDF document text
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/9b4878b3fc223d17ebc616b7bb589ca0/zuloxotadebetidol.pdfIn PDF document text
    • https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/77605fabbdb3368f3991cdf7b0a6bbdc/fupava.pdfIn PDF document text
    • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608be53b84ad2---48132489357.pdfIn PDF document text
    • https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/160e7ea76195c9---14241839458.pdfIn PDF document text
    • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b916766fd62---36588539908.pdfIn PDF document text
    • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/76267277a6120976137ad37b5bc49903/94876718026.pdfIn PDF document text
    • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160ae14f46dd14---suziwaw.pdfIn PDF document text
    • http://cathyknightwaite.com/ckfinder/userfiles/files/gigasuvip.pdfIn PDF document text
    • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/3d93d729f8a5ac0bc9e40bdf25fa6237/7141865359.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b188623ac68---vubuxaxomiwipodorusonowaj.pdfIn PDF document text
    • http://zgic.ru/!upload/files/37709455747.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/e219d05b5b2c751f4a7df1c231aefd97/dozofoneguji.pdfIn PDF document text
    • https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/d8e79f3840144ce12b51f97db6c67c5a/vapixilimurivif.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3247aefac8---92266918954.pdfIn PDF document text
    • https://alyosserspneed.com/userfiles/files/43837651248.pdfIn PDF document text
    • http://tablica-nieruchomosci.pl/uploades/fckeditorfile/48633065307.pdfIn PDF document text
    • https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/u3bdsmqg0ijelau01pjm6q59i1/27951228333.pdfIn PDF document text
    • https://organicfertilizerproduction.com/d/files/74356893728.pdfIn PDF document text
    • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a8d23d774fb---79748979727.pdfIn PDF document text
    • http://ya-ke.cn/admin/upload/zedilusubibokofosafozoteg.pdfIn PDF document text
    • https://principesgs.com/userfiles/file/24245675083.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_off0000ebfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBFA 17032 bytes
SHA-256: 0068fd778c3a2332c63232600963de57d373af7a172e26159e7efa671d8f7637
font_01_sfnt_off000118ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118AB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000130c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130C2 11132 bytes
SHA-256: 163712bb31ae408164642173767b9135b9efc84133dbb970069041282b945b9a

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