Malicious PDF — malware analysis report

Static analysis result for SHA-256 4253eb3c9c2a4fa3…

MALICIOUS

PDF

290.2 KB Created: 2022-03-13 01:28:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 488b6948e02e8bc4f760683707932b40 SHA-1: cf7ea69c52e14791d59f9e2d1e1d020c33fdd23f SHA-256: 4253eb3c9c2a4fa398822f2c5bb7849512ab5835e43a05dea5ea96ab8ff3814b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6557

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
  • 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.
  • 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.
  • 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://norin.co.za/XSRYdR1H?utm_term=parichay+amit+bhadana+status+video PDF link annotation
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1620b1567c5dce---puxajowepix.pdfIn PDF document text
    • http://nadiadsa.org/userfiles/file/63578815108.pdfIn PDF document text
    • http://stihoplet.by/upload/editor/files/82387787344.pdfIn PDF document text
    • https://comfortinnbarrie.com/phpsites/vertical_living/uploads/file/zukapewalepavakefuzevu.pdfIn PDF document text
    • http://tatvideo.ru/ckfinder/userfiles/files/givigufobezukitanagot.pdfIn PDF document text
    • http://greenlasthousing.com/admin/kcfinder/upload/files/wanodizogizuli.pdfIn PDF document text
    • http://hardiebase.com/uploads/assets/filefile/pipufijanafefofasa.pdfIn PDF document text
    • http://zuche0551.com/upload/file/togovubusuwomajumil.pdfIn PDF document text
    • https://lp-tracking.com/userfiles/file/72103363786.pdfIn PDF document text
    • http://agencies.opertur.com/uploaded/kcfinder/files/61245885783.pdfIn PDF document text
    • http://abb-impuls.su/kcfinder/upload/files/vidiwijepozuno.pdfIn PDF document text
    • http://envisystem.com/upload/userfile/files/63862916799.pdfIn PDF document text
    • http://thomas-zigon.de/images/file/jududibapuwimaxemat.pdfIn PDF document text
    • http://siriussiramatik.com/panel/kcfinder/upload/files/wipogojekirufefovi.pdfIn PDF document text
    • https://lesartsdansmonjardin.com/userfiles/file/20220303105630.pdfIn PDF document text
    • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/16204f5e662b38---97173476816.pdfIn PDF document text
    • http://gkb-vityaz.ru/upload/files/solokasututa.pdfIn PDF document text
    • https://eirai.org/editor/ckfinder/userfiles/files/kofowugivurakodadesuzumod.pdfIn PDF document text
    • http://idevoz.rs/files/mibanafigi.pdfIn PDF document text
    • http://asbu.net/uploads/FCK_files/file/gigibul.pdfIn PDF document text
    • http://china-steamboiler.com/d/files/degetuzapigor.pdfIn PDF document text
    • http://ncteonline.com/userfiles/file/42520933144.pdfIn PDF document text
    • http://realtor-madrid.com/uploades/fckeditorfile/degixadolatumoz.pdfIn PDF document text
    • https://htkvn.vn/public/admin/plugins/kcfinder/upload/files/momaboseporakem.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1620b68ef5531a---5917267948.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00040114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40114 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00041834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41834 11008 bytes
SHA-256: ce3834cddbffb0d157443686d509d54f36c04d2ff704ec4763e4973edae92791
font_02_sfnt_off000431ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x431AB 16284 bytes
SHA-256: 35e479d052f87a2abbca201dadaa635a96c63bbc3f7a35af761760e150072db2
font_03_sfnt_off00044773.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44773 19096 bytes
SHA-256: f692242dfb387afac75710406522d0eed02b54b9660c1a3549cea7fac249b43b