Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ada263a2bd7e892…

MALICIOUS

PDF

116.5 KB Created: 2021-07-07 09:04:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: e4ac35a1fbcd90170febb1c06b5d1627 SHA-1: 8c3efa1e5afe5758c8cf75e39b86424bc6a097e1 SHA-256: 2ada263a2bd7e8921602e70e964f86d77ba565b3e1698746dbd9cd3c27e143b7
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous embedded links, many pointing to compromised WordPress installations or disposable hosting, suggesting a phishing or malware distribution campaign. The presence of these links indicates an attempt to redirect the user to malicious websites, likely to harvest credentials or deliver further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9614

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/d53b5eca2986c71bd99c8f6752d59184/wajokodogetasibomevibepo.pdf In PDF document text
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b559310bb8c---4509698139.pdfIn PDF document text
    • https://businessservicesuk.com/userfiles/file/53086537578.pdfIn PDF document text
    • https://stratasphere.online/userfiles/file/dilatewesudukuropimir.pdfIn PDF document text
    • http://akkoryazilim.com/userfiles/file/67053222656.pdfIn PDF document text
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/c44dfaf2ce9e15426c933e53d18f2647/13909775101.pdfIn PDF document text
    • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c694d71ec72---54803051214.pdfIn PDF document text
    • http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/6480afdc50cce084eca2a9ba3afb7133/rufegopirudisavexi.pdfIn PDF document text
    • http://arohitourandtravels.com/userfiles/file/kekasagisagitexutikog.pdfIn PDF document text
    • https://harkakotony.hu/UserFiles/file/96490853612.pdfIn PDF document text
    • http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/28c284517948e7dbe67195982c910624/2393830788.pdfIn PDF document text
    • https://martybermanassociates.com/wp-content/plugins/super-forms/uploads/php/files/749c689afa35d0828c4dd5cc4afa4215/5175547819.pdfIn PDF document text
    • http://historia-bfured.hu/userfiles/file/fotojogoguk.pdfIn PDF document text
    • http://tcsm62.org/uploads/news/file/dajasevazus.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/cjpf3ck6cof29jpv6mrk64pau1/mitizufimitodakona.pdfIn PDF document text
    • https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/i3a8km0o9mplkj7c9ioapq1vsk/48213929354.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16088c1eb4c2ce---witijunim.pdfIn PDF document text
    • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160806fdcc7cff---59989337120.pdfIn PDF document text
    • https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/6d167fe1a57b37b1202fe5874e74afbb/novatomasexokiboparis.pdfIn PDF document text
    • https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/fade20d515cdb8f26a1d45cbfbea5192/82825176752.pdfIn PDF document text
    • http://goref.ru/files/file/losogesedexogana.pdfIn PDF document text
    • https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/0b5e09d5bbd309645090dad02098e194/22077533649.pdfIn PDF document text
    • https://bravo-hk.com/userfiles/file/kotironagu.pdfIn PDF document text
    • http://usmleworkout.com/files/file/vuwejivevazapixo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=contemporary+engineering+economics+5th+edition+solution+manual+pdfPDF 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
font_00_sfnt_off0001402c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1402C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001583e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1583E 18708 bytes
SHA-256: 51879f96640b0c472c2c222e9eddfd97599d51ff19836c8423ddfc4d9e5419a9
font_02_sfnt_off00018a20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18A20 11448 bytes
SHA-256: 3f9ba778f11ec1a6b91ec1d4f7a7a625f3969004385a9869dddd97a3fa4b70d2
font_03_sfnt_off0001a4d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A4D0 1896 bytes
SHA-256: febe4888f4320449c252a57cac97fb13f1478ba17986dc2373ded4bf28ed31f9
font_04_sfnt_off0001ad93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AD93 16088 bytes
SHA-256: 450eea5fc67953cc3bdc764260aa6f1739571c17331c9588074966c3dbef4c6c

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