Malicious PDF — malware analysis report

Static analysis result for SHA-256 4457d0f391844f25…

MALICIOUS

PDF

247.5 KB Created: 2022-03-01 00:56:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: ad42cd7c18f037020372b12b586374f0 SHA-1: 73e0c183eeb9383ce18bb377eb6b0f2092093661 SHA-256: 4457d0f391844f25d72f239e0a16ecc4d0decf99e0bda4c811aeb11ef5b871e7
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's a phishing lure. The embedded URL, https://lovig.co.za/XSRYdR1H?utm_term=android+studio+update+conflict+gradle, is presented as a download link, likely to trick users into clicking it. The PDF structure and content suggest an attempt to exploit user trust for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8332

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://lovig.co.za/XSRYdR1H?utm_term=android+studio+update+conflict+gradle PDF link annotation
    • https://gelblighting.com/userfiles/files/sitaxomozul.pdfIn PDF document text
    • https://doan295doson.vn/namthuan/images/news/files/99254525950.pdfIn PDF document text
    • http://baracenter.be/userfiles/file/fegoganepebipo.pdfIn PDF document text
    • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16214c14570620---wujagifokasatuxupati.pdfIn PDF document text
    • http://taociren.com/upload/file/220228225201795752ps9ti4y4r0j8.pdfIn PDF document text
    • http://antoniolescio.net/userfiles/files/24563246614.pdfIn PDF document text
    • http://razzledazzleevents.in/userfiles/file/48192099496.pdfIn PDF document text
    • http://sxnqx.org/upload/file/Fl202202070632513402.pdfIn PDF document text
    • http://vizilo-vizitura.hu/admin/kcfinder/upload/files/kibewajuxunaxumevugazago.pdfIn PDF document text
    • http://medcentervrn.ru/userfiles/files/95241911673.pdfIn PDF document text
    • https://keuangan.artadev.com/assets/kcfinder/upload/files/faramatudirux.pdfIn PDF document text
    • http://physio-praxismitte.de/userfiles/89699483267.pdfIn PDF document text
    • http://ukicda.com/admin/fckeditor_upfiles/file/2022020121154180554.pdfIn PDF document text
    • http://netpart.hu/kcfinder/upload/files/36949875996.pdfIn PDF document text
    • http://gyuco.com/uploadfile/files/20220221_113320.pdfIn PDF document text
    • http://akekaluck.com/ckfinder/userfiles/files/36423179913.pdfIn PDF document text
    • http://xn--90ae5b.xn--p1ai/uld/files/kixevowidikarewazur.pdfIn PDF document text
    • http://bakefruit.com/uploads/files/202202092228213759.pdfIn PDF document text
    • http://www.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/69025850414.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_off000356e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x356E7 18372 bytes
SHA-256: 45b9519bd002f572573274e5e780a4fc8357ac12fe5ad51d6c08ff88af76d4dd
font_01_sfnt_off0003874a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3874A 10876 bytes
SHA-256: 808e040702a191cb701a7f885226829ce1dac60ecce34b35ca5283b31f0a4d10
font_02_sfnt_off0003a062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A062 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off0003b77c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B77C 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6

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