Malicious PDF — malware analysis report

Static analysis result for SHA-256 62a65682d32c91cd…

MALICIOUS

PDF

106.2 KB Created: 2021-07-16 12:24:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ce08d08486086deda9d0f4a03124b1e1 SHA-1: 42075f0b25bc83c896af3cf538811fdcf6eddf9f SHA-256: 62a65682d32c91cd75dd4d8473719c0203df4ae971e65af94d4e580e0cee1467
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links, many pointing to compromised WordPress sites and disposable hosting, indicating it functions as a link farm. The presence of a raw IP address in one of the URIs and the ML classifier's high confidence score suggest malicious intent, likely for phishing or distributing further malware. ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9747

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/d8e02e09d0b91b7c5f0295dbcd8653fa/54026339386.pdf In PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160cb9d466f3f9---gaxarolotamoxuvafuvobusu.pdfIn PDF document text
    • http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608468f5d30cc---napatevapuvunevugolel.pdfIn PDF document text
    • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/997bb5129c365622a5a883a6036fa182/wugebibevewufafekosumek.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606caa64c974b---jabogiv.pdfPDF link annotation
    • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/9ebab297d03fcbf532c5f5f48bab67bc/losetukikazatiwadobuku.pdfIn PDF document text
    • https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607174485fa88---subofijelikokudupar.pdfIn PDF document text
    • https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/45g8ng0afp5gj8qe26oin4ott3/65222160874.pdfIn PDF document text
    • http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160738645c6d99---12056835347.pdfIn PDF document text
    • http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd2a890b752---68279901423.pdfIn PDF document text
    • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/q63e7nld11mtnf21lvfrreatm1/38572888971.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/caeda8d40daa951f2c636a28fc57d499/41088069974.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/794u7k1a2bauuja662d4q28ga2/piren.pdfIn PDF document text
    • http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/0aefa56fc55c5736f2190ce93f7b74b4/konugomag.pdfIn PDF document text
    • https://cottingham-group.com/cufiles/files/59837780827.pdfIn PDF document text
    • https://newtech-utm.pl/userfiles/file/rosonakurixabozejozab.pdfIn PDF document text
    • http://partnercable.hu/files/xoxukubulubozubilate.pdfIn PDF document text
    • https://www.axelendinggroup.com/wp-content/plugins/super-forms/uploads/php/files/6c79c58d1dbfb4de5a0569bac9f6252d/94077635408.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2e8926303---pipivadarukusoneve.pdfIn PDF document text
    • http://jcpingie.be/public/files/16177589451.pdfIn PDF document text
    • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/09b40472363a57a685e8325e3998147b/49913903181.pdfIn PDF document text
    • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609f6ebc0bbec---tepiki.pdfIn PDF document text
    • http://plncse.hu/php_data/file/dufuterajow.pdfIn PDF document text
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d2b7cc808e5---nemamatapobidexima.pdfIn PDF document text
    • http://billsky.ee/files/file/zategosixaxorofalap.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=bewitched+under+a+magic+spell+meaningPDF 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000101a7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x101A7 20280 bytes
SHA-256: 03256131f52e3d85ebcfef4a426509034b254af9bd784202735f7adb5b74b0d7
font_01_sfnt_off0001236f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1236F 11080 bytes
SHA-256: 0b56be3f9967e3e5e788c30e62300759d57c3262a26124c083f6d15f32150523
font_02_sfnt_off00013cf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CF4 23900 bytes
SHA-256: 47fd1df527b6a1259110d871fe8d015bb8aa43921f83ca2b6499d09cd210a7c0
font_03_sfnt_off0001795e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1795E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_04_sfnt_off0001916b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1916B 1912 bytes
SHA-256: 64eadcec7f072441752a9db1479fe399c5d42bac21db7a52e3504be72eabb438

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