Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ec2fef63e77907a…

MALICIOUS

PDF

88.7 KB Created: 2021-06-29 23:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: edd1fe9d64b5c4dd9a134f7035f78737 SHA-1: b0930ac39be2feed7e94f2daf22b7c50d04c50be SHA-256: 5ec2fef63e77907ae1f1a88eacb609247f463b077eeb1d705ef0bda67e388ed1
156 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous links, many pointing to compromised WordPress sites, suggesting it functions as a link farm. These links likely lead to phishing pages or further malware downloads, aligning with a spearphishing attachment attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608afb2fbd294---mewewunetugonuveduxosez.pdf In PDF document text
    • https://arbormaster.net/uploads/files/dezaxibelomaxisovususaro.pdfIn PDF document text
    • https://keralatemples.info/ckfinder/userfiles/files/zawomes.pdfIn PDF document text
    • https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/09cb5d56e5e35ceed47adab48b3f8571/59428921064.pdfIn PDF document text
    • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/pgcli8ggl0ni7nav188o2q54h9/juzifirepapokodiwofil.pdfIn PDF document text
    • https://keongracun.org/contents//files/17119255215.pdfIn PDF document text
    • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/16086a0c6d08c6---20074416620.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1508c7602---83273258096.pdfIn PDF document text
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1608556d6b00a6---34633386047.pdfIn PDF document text
    • http://solee.cn/ckfinder/userfiles/files/nufoworupilopegebunepud.pdfIn PDF document text
    • http://woodsfamilypride.org/clients/2/2c/2c83419adcf4927d74d3defe18342386/File/4371403032.pdfIn PDF document text
    • https://londonvipchauffeur.co.uk/wp-content/plugins/super-forms/uploads/php/files/e758b07b693da3d51fdd8655e2d2d79b/85182387858.pdfIn PDF document text
    • https://abofahed.com/userfiles/file/daroporukiki.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/m82ndlhb0ebkvtt13ni8svmnh0/wikedejalasedikegido.pdfIn PDF document text
    • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160816188b8a1f---57334321647.pdfIn PDF document text
    • https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/4971f0ef7d819a86e2130bf423ff8d19/96709926778.pdfIn PDF document text
    • http://alburigiott.it/userfiles/files/93140591927.pdfIn PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/3b4d6f5433490c3ef876b3151cc06d45/mururosositu.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c5b22a65980---dazebari.pdfIn PDF document text
    • http://sosonomo.com/ckfinder/userfiles/files/laxosapone.pdfIn PDF document text
    • https://autotrans911.com/thread/admin/uploads/file/ribiwomelowamiwewusi.pdfIn PDF document text
    • https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/3ae8bab547348c26ee5ce3dc0dfbdc46/kafod.pdfIn PDF document text
    • http://rsst77.ru/upload/files/41604807104.pdfIn PDF document text
    • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/7cab40daddd3932eb325ad34060dd47f/89013706160.pdfIn PDF document text
    • https://agentcctv.com/userfiles/file/97105714540.pdfIn PDF document text
    • https://cgeminfos.ma/upload/file/rolabovupexe.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=maths+crossword+puzzles+with+answers+for+class+8PDF 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_off0000f616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF616 11164 bytes
SHA-256: ffe20396e9e4ec96828a33d9ba7828be53dcc44d2bc6d8d826dbe2e38b486fcf
font_01_sfnt_off00011044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11044 17204 bytes
SHA-256: 6477ca94c7f666caa447d6839ee5b5ab14760417f40703deaeee593e6ecba8e4
font_02_sfnt_off00013d25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D25 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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