Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c14a3d702c5ab70…

MALICIOUS

PDF

96.6 KB Created: 2021-07-01 15:27:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 9b433476449a251c4f6c6ec83c2f1d5f SHA-1: 69fa63772f14535c79cc102972012ab3ae1be6de SHA-256: 5c14a3d702c5ab70480e6958bae5f63d5288e669823583d8126a933ab90aaf74
156 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to compromised websites, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. No scripts were extracted, and the document body was unreadable binary data.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

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 https://drafthe.ru/uplcv?utm_term=melting+point+trend+in+group+2 PDF link annotation
    • http://reedxtrainternational.com/uploads/pages/file/61143849071.pdfIn PDF document text
    • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c9548345753---zaguxibuwovetu.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4c2992eb07---memosonaroximimot.pdfIn PDF document text
    • https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/c0b86317d52e06eaa60989c107a1c740/zelosazudiwapibi.pdfIn PDF document text
    • https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e1738ee32e---pomafibolupilugepox.pdfIn PDF document text
    • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4c808918a1---dojopedanuxelera.pdfIn PDF document text
    • http://lmyc.net/clients/875386/File/defidabilidufi.pdfIn PDF document text
    • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/j1m3ah6r09vijs1aq63qmv9gnf/susave.pdfIn PDF document text
    • https://anthonygillant.com/userfiles/file/pekosovumijejerikadezelar.pdfIn PDF document text
    • http://exantusfamilyreunion.com/clients/9/96/968554593547eb574606130639276270/File/12356690992.pdfIn PDF document text
    • https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085406cda609---92993394331.pdfIn PDF document text
    • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7dbe95e10f---8453272007.pdfIn PDF document text
    • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c79ca3d94e2---44286755491.pdfIn PDF document text
    • http://phantasos.org/userfiles/file/nesubewipebatogen.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b83aaa2077---33795519887.pdfIn PDF document text
    • https://aravlicraft.com/cmsCart//upload/file/liwugokub.pdfIn PDF document text
    • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c0a270a5859---fonezedotar.pdfIn PDF document text
    • http://zetrade.cz/userfiles/file/77352027468.pdfIn PDF document text
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/62caed62a7bc1eaf8a1a27329b8e44fd/tewigixasefedefeto.pdfIn PDF document text
    • https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/f3eec2c66ed20095313019cb3bfe5856/zazuwijutisiwilideb.pdfIn PDF document text
    • http://reversetheclocknow.com/ckfinder/userfiles/files/degizusewipik.pdfIn PDF document text
    • https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/ef7d478b07c44bc3c02d48e9478b0845/gijotidonu.pdfIn PDF document text
    • http://peaceinsrilanka.lk/userfiles/file/zovalewipiwaduvasesukij.pdfIn PDF document text
    • 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA11 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11222 18460 bytes
SHA-256: b8ebbad897b0d66dd93cd75c9c3dfad3f7d342e311e889237f208c813c6a1a14
font_02_sfnt_off00012fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FE2 10448 bytes
SHA-256: 63a7d79fba176d1193dbbb2bcaa231476acdbd19e61c53650a960da09c0f722f
font_03_sfnt_off00014778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14778 17356 bytes
SHA-256: b34b28a3c6fce62eb071b23febba0ef8229166e6e3ac1083cdc8afa0f8debbff

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