Malicious PDF — malware analysis report

Static analysis result for SHA-256 24a2ee30dba92463…

MALICIOUS

PDF

82.8 KB Created: 2021-09-23 03:21:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: eb91f84aae0f40e47378f214157c80e2 SHA-1: feb57720eb2d528d7e7f07a2cb525f51050643c2 SHA-256: 24a2ee30dba924633e373c6aabbd01cb2b51d295cbf9c134ea62c42dfe9e16ce
156 Risk Score

Malware Insights

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

The PDF contains a link farm hosted on compromised WordPress sites, a common technique for distributing malicious content or conducting phishing attacks. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is unreadable, but the heuristics and URLs point to a phishing or malware distribution campaign.

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 http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161487bc9444ca---13704309893.pdf In PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/161408cdc7a476---mirujemidim.pdfIn PDF document text
    • https://nationalshield-uae.com/userfiles/files/66525294008.pdfIn PDF document text
    • http://hanasushimenifee.com/uploads/files/rodunadagisuwilukebisire.pdfIn PDF document text
    • https://balmbeach.hometeamcorp.com/images/usr/sagonikogufapigunakapisu.pdfIn PDF document text
    • https://abyway.lv/images/ck_images/files/25321441678.pdfIn PDF document text
    • https://pelletier-tp.fr/ckfinder/userfiles/files/39168442245.pdfIn PDF document text
    • http://fasson.vip/images/editor/files/jaxiruzez.pdfIn PDF document text
    • http://eastindiaspray.com/suvra/eastindia_spray/files/werevanutepilobux.pdfIn PDF document text
    • http://ratchadatitan.com/UserFiles/File/69268935260.pdfIn PDF document text
    • http://fzsvybbs.at/userfiles/file/purozemame.pdfIn PDF document text
    • http://www.farmaciavictoriayjmleon.com/userfiles/files/vowalaxin.pdfIn PDF document text
    • http://merrygoldholidays.com/ckfinder/userfiles/files/gapatozow.pdfIn PDF document text
    • http://liqaa-lb.com/files/userfiles/files/68223810648.pdfIn PDF document text
    • https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/9ebf2fb7b77452aa6df4ce7845b0b9d1/folizoribimavor.pdfIn PDF document text
    • http://snft.ro/media/file/numenukitumewijev.pdfIn PDF document text
    • http://baominhlabors.com/upload/files/12815524945.pdfIn PDF document text
    • https://perfecthospitals.com/FCKeditor/file/80353721769.pdfIn PDF document text
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/161490b4c37739---59419641032.pdfIn PDF document text
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/16131882751afa---xideporesosavitefebixe.pdfIn PDF document text
    • http://goraku-sangyo.com/userfiles/file/74659113633.pdfIn PDF document text
    • http://matrix-corporation.com/upfiles/editor/files/tevofepif.pdfIn PDF document text
    • http://matsusushionline.com/uploads/files/12005628029.pdfIn PDF document text
    • http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614562cc5a7fe---fidasagoxafobexotone.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=the+first+snowfall+poem+themePDF 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_off0000dc2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2C 10672 bytes
SHA-256: eb250c83cef582abb567db7afcdcf0d496e84046e613dfbc9f6c91749d4f830d
font_01_sfnt_off0000f489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF489 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C9B 18820 bytes
SHA-256: 4469f4fcc3b89881ec224047d44eb64ba4dd30c33636e85ab9e552884d021739

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