Malicious PDF — malware analysis report

Static analysis result for SHA-256 54e1a0019e6d8f8d…

MALICIOUS

PDF

85.9 KB Created: 2021-06-27 22:13:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 5a3994a409023bdeff1606ca5a1d45f1 SHA-1: b434b7e7352997305ec1c7915d527096b04c18f5 SHA-256: 54e1a0019e6d8f8d2497bad86a2edc856ea97ddc2e837c03d921939982a9cd3b
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised CMS uploads and disposable hosting, likely to redirect users to phishing or malware sites. The presence of external URIs and link farm characteristics strongly suggests an attempt to exploit users through deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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=types+of+interviews+in+qualitative+research PDF link annotation
    • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/d2f620dfe8ce41aa3dd176f27fdb67a3/15752564976.pdfIn PDF document text
    • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7548bea54---54338070836.pdfIn PDF document text
    • https://foulardfotografando.it/file/97172663864.pdfIn PDF document text
    • http://hasanmasat.com/ckfinder/userfiles/files/tiridet.pdfIn PDF document text
    • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/sjhiq0i11qdi88efgmvvvicrk7/87707170815.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094d8dc3e6eb---78342380281.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/160799311e7134---pevolixawuxevinazusufe.pdfIn PDF document text
    • http://odnoklassniki-files.ru/images/uploads/files/36481341819.pdfIn PDF document text
    • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160a5a04a7fcb0---zubibejatabezumalakabetos.pdfIn PDF document text
    • https://harkakotony.hu/UserFiles/file/doxizifu.pdfIn PDF document text
    • http://nutricion-intravenosa.com/wp-content/plugins/super-forms/uploads/php/files/d1eb8185ff9445bdac22438b0e75f8f8/51325598584.pdfIn PDF document text
    • http://liebherr-tr.com/userfiles/file/6529538228.pdfIn PDF document text
    • http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160931b04662ec---30316255021.pdfIn PDF document text
    • http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160911e51730cb---30070086963.pdfIn PDF document text
    • https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/160a10817ecd67---kijukegofapomefoxexakum.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba49efdc9cd---xoxikeworu.pdfIn PDF document text
    • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/a1a0d6f9c880f4b476f53aed57029737/navudorakigusexufenup.pdfIn PDF document text
    • http://raiders71.com/clients/4/41/4134020f2f298c111575624a380fabfc/File/34230514109.pdfIn PDF document text
    • http://tuzvedo.hu/elemek/file/kakitubeto.pdfIn PDF document text
    • http://altinay-law.com/images/file/sobexupew.pdfIn PDF document text
    • http://attlas.center/userfiles/file/luradumibitepe.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160948b783e504---xevibovowotif.pdfIn PDF document text
    • http://oryginalnedekoracje.pl/userfiles/file/balukevudodexujusitem.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF03 16192 bytes
SHA-256: e65bae1ea83ed1a729682d79ecaa342dacc6a95120f8877b57a9424b12d70b72
font_01_sfnt_off00011882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11882 11052 bytes
SHA-256: a1cd6eaf1c6f275c7ff96941cd910746425e26c4e16c8ddd82c83aa2d9bec40d
font_02_sfnt_off0001324c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1324C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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