Malicious PDF — malware analysis report

Static analysis result for SHA-256 191a45a316c4834a…

MALICIOUS

PDF

71.0 KB Created: 2021-09-17 06:53:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 9450f3ef954a550911e01414104075e2 SHA-1: 54c359768d986247350b1f85f867eaa19abe090b SHA-256: 191a45a316c4834acc04df6bd6b66fb017ccd4a015079ea63868f8621d82f1da
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9837

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://huntic.ru/uplcv?utm_term=vk+android+apk PDF link annotation
    • http://ohmamakitchen.com/uploads/files/janamivekopovabixepu.pdfIn PDF document text
    • http://saveursetsavoirs.fr/image/file/xugapodofuzoras.pdfIn PDF document text
    • http://bakersfield.thepokeluau.com/uploads/files/tawed.pdfIn PDF document text
    • https://yucekalipmakina.com/tsrm1/img/userfiles/file/44679667491.pdfIn PDF document text
    • http://archifolder.com/userfiles/files/22380149025.pdfIn PDF document text
    • https://penmypoem.com/new/admin/uploadfiles/file/sanurizi.pdfIn PDF document text
    • http://sb-78.ru/files/file/17737174417.pdfIn PDF document text
    • https://ldcpc.com/ckfinder/userfiles/files/sepunowanunigajadiva.pdfIn PDF document text
    • http://i-physiology.ru/upload/duxavufabe.pdfIn PDF document text
    • https://www.gryf-wet.pl/ckfinder/userfiles/files/60320587907.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161440cc74fae1---revezipedeladevuk.pdfIn PDF document text
    • https://itscebu.com/upload/file/20210911224853.pdfIn PDF document text
    • http://fine-trading-knotwork.com/uploads/media/78454940789.pdfIn PDF document text
    • http://kidsjeodo.com/images/files/9651318903.pdfIn PDF document text
    • http://jagdrevier.hu/upload/images/file/82820852794.pdfIn PDF document text
    • http://metrominicabs.com/survey/userfiles/files/xogogojunog.pdfIn PDF document text
    • http://www.tiande-global.com/ckfinder/userfiles/files/bawumovido.pdfIn PDF document text
    • https://srsatta.com/ckfinder/userfiles/files/buzezevikel.pdfIn PDF document text
    • https://sinarlangit1.com/contents/files/100354024.pdfIn PDF document text
    • http://ozdoby-betonowe21.pl/Upload/file/foxasomidatuwex.pdfIn PDF document text
    • https://serrechevalier-skifun.com/imagesfile/47303515743.pdfIn PDF document text
    • https://markmont.eu/editor_uploads/system/files/10356370672.pdfIn PDF document text
    • http://chanakol.com/ckfinder/userfiles/files/39211363212.pdfIn PDF document text
    • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/fb4c26a73cff8447fd758e1cb7ecbb94/13219187496.pdfIn PDF document text
    • http://chongros.com/userData/board/file/vesinawalixolijatoruw.pdfIn PDF document text
    • http://sibaco.ru/ckfinder/userfiles/files/9649430038.pdfIn PDF document text
    • http://testsitehq.com/ckeditor-ckfinder-integration/uploads/files/ximokosogevofegutixuli.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_off0000b4fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4FD 17356 bytes
SHA-256: 2f037473d17ef319c3a0045167eacf0c4b71363acff60a9908acf5cb2de44cc0
font_01_sfnt_off0000e0ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AD 10000 bytes
SHA-256: 0c106c159621ca80994b1153f15b858c5590e8663500829abbe9d5d3abfb300d
font_02_sfnt_off0000f6de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6DE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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