Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e07ee1bd8a0e887…

MALICIOUS

PDF

82.0 KB Created: 2021-09-04 06:08:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 8905a50a6f0581dde75bbd4f55a47ce7 SHA-1: 8bc9869793577f8f78bf0b162ef6124a027d8441 SHA-256: 1e07ee1bd8a0e887971e7011c8c8fd7ecc758410e3b5fee72e26caca344d71df
164 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a link farm pointing to compromised WordPress uploads and disposable hosting, as well as a high ML score and ClamAV detection. The presence of a 'download' button lure suggests a phishing or social engineering attempt to trick the user into downloading a payload. While no scripts were explicitly extracted, the PDF structure and linked URLs strongly indicate a malicious download or redirection workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c761cb060a---49247178428.pdf In PDF document text
    • http://arunimaflavours.com/userfiles/file/xogezedoxutirofunubu.pdfIn PDF document text
    • http://5m-tti.com/uploads/image/files/82374785879.pdfIn PDF document text
    • http://brcassociati.com/userfiles/files/76933958889.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/7cc85475dd139b47839f6b68620bc3c2/rujumaxidudamaxukazajego.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/16071c65ebda2e---mosokekibunesukanuxu.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/87855101350.pdfIn PDF document text
    • https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/c982e5807cb7eb006052cec9c3930ffa/70003707278.pdfIn PDF document text
    • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/kvk1gp59c2kd95m1ifv1i2iic5/sidusuzitav.pdfIn PDF document text
    • https://famecosmica.it/file/fuzitobinedotaje.pdfIn PDF document text
    • http://hilimall.ae/uploads/files/22288010900.pdfIn PDF document text
    • http://animalscipublisher.com/files/upfiles/file/76288724520.pdfIn PDF document text
    • http://nctpa.biz/clients/5/51/51e593b678cc4707ea5ff7b662bcbdb9/File/53162003595.pdfIn PDF document text
    • http://ros.by/ckfinder/userfiles/files/sevavudowivugeluzaze.pdfIn PDF document text
    • http://nanouklid.cz/upload/file/62659581274.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5421c52fa---zusamuba.pdfIn PDF document text
    • http://zentrumok.com/userfile/files/suvujerapolazosuteweguv.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a01c9dbf4ae---90426709866.pdfIn PDF document text
    • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160b81f0b2cc9d---nenijeluw.pdfIn PDF document text
    • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611585e3084de---vumodowanun.pdfIn PDF document text
    • https://indianpowerliftingfederation.com/userfiles/file/89876570025.pdfIn PDF document text
    • http://wxhsbl.com/ckfinder/userfiles/files/20210819_065632.pdfIn PDF document text
    • http://cn-daomeng.com/upload/userfiles/files/d0533374ed93cb6a6ed848f02b090c9d.pdfIn PDF document text
    • https://noihoithanhtuan.com/media/ftp/file/47976893660.pdfIn PDF document text
    • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/d7g16rusl384v086guvpiq3j50/rinavevasidus.pdfIn PDF document text
    • https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/dc025e0994e9a1cc0c4ac62b69b23f40/7038089068.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=cpe+test+builder+pdf+downloadPDF 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_off0000d7d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D0 19308 bytes
SHA-256: cbd7697a76854ca3e6b10a00dd47bf315a6741f0b563410bc09f638c3615a286
font_01_sfnt_off00010923.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10923 10848 bytes
SHA-256: 7927d93f2622631e398d72ddbb25ebefc1aac33abde50c2536a5fdb4f9af6184
font_02_sfnt_off00012224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12224 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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