Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fba38009ee7257…

MALICIOUS

PDF

383.1 KB Created: 2022-01-08 18:21:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 5781b430f7422d438412e95674a32d20 SHA-1: fae0f0eb3d79360c8f39951e869fc1b9354c53f8 SHA-256: a4fba38009ee72570f2ed67a4117433321460ef57b49f1ca6471600ebb52fb4c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6606

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://archism.ru/uplcv?utm_term=voting+list+pdf+2017 PDF link annotation
    • http://keramann.ru/uploads/files/zuwigufatexodiwor.pdfIn PDF document text
    • https://isped.cz/kcfinder/upload/files/76462997423.pdfIn PDF document text
    • https://lescourailleurs.com/upload/editor/file/kavusipagulunaxa.pdfIn PDF document text
    • http://arablift.net/userfiles/file/jitebexol.pdfIn PDF document text
    • http://htrp.ru/kcfinder/upload/files/judawuvafax.pdfIn PDF document text
    • http://koppeika.ru/userfiles/file/figatosebojapizipoda.pdfIn PDF document text
    • http://www.zywawiara.pl/pliki/98905924039.pdfIn PDF document text
    • https://securitydm.com/slicice/file/98177875718.pdfIn PDF document text
    • http://thailand.metten.dk/ckfinder/userfiles/files/vojobuze.pdfIn PDF document text
    • http://bingsu.ir/cache/fck_files/file/85933976444.pdfIn PDF document text
    • http://teedinmaesai.com/user_img/file/19538167950.pdfIn PDF document text
    • https://lazdynumokykla.lt/userfiles/file/xazawirugasiwuwepanifugan.pdfIn PDF document text
    • http://ellev.fr/upload/files/14346078865.pdfIn PDF document text
    • http://xn----7sbjvweekof5d.xn--p1ai/files/files/lurunu.pdfIn PDF document text
    • http://altus.pl/userfiles/file/60529037337.pdfIn PDF document text
    • https://akproauto.net/nbloom/fckuploads/file/25616589889.pdfIn PDF document text
    • http://kredoteka.ru/uploads/file/50666469604.pdfIn PDF document text
    • http://hvnepal.com/assets/kcfinder/upload/files/73960319354.pdfIn PDF document text
    • http://www.casopisfolklor.sk/assets/kcfinder/upload/files/tojivurepofope.pdfIn PDF document text
    • http://dobrodetel-tula.ru/kcfinder/upload/files/pulafa.pdfIn PDF document text
    • https://tecnomatec.cl/upload/file/taxituwepupexalanikuwug.pdfIn PDF document text
    • https://www.arda.or.th/kcfinder/upload/files/lupasurikevobutuv.pdfIn PDF document text
    • https://comfortinnbarrie.com/phpsites/vertical_living/uploads/file/zobeburarukavefoduxamolu.pdfIn PDF document text
    • https://castilloexterior.org/ckfinder/userfiles/files/34532400684.pdfIn PDF document text
    • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161533ff119f7a---86681592991.pdfIn PDF document text
    • http://resortcrimea.com/ckfinder/userfiles/files/91599742113.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 extracted file (font_00_sfnt_off00058f9e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00058f9e.bin)

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058f9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58F9E 10592 bytes
SHA-256: 4fa0fb61b0a8e61d1d9f83280d27f9cfc4c517f37d35d357165f543ec18ce3ec
font_01_sfnt_off0005a7d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7D3 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0005be72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE72 18240 bytes
SHA-256: 4867880424b6ce4923b6432ce37ea96bdcb51700833ea36d9e1fbd1700ac035b

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