Malicious PDF — malware analysis report

Static analysis result for SHA-256 de4e5f3be52459e5…

MALICIOUS

PDF

322.4 KB Created: 2022-05-29 19:55:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-03
MD5: 1d595a64b03924e58efc98bef75785b5 SHA-1: 70fe8107dcfce9d9a4e5f2403990d28d8921d229 SHA-256: de4e5f3be52459e5438b79d6720f2f852424d4153592bcc4693ea48c582886b5
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, with one specifically identified as an 'Image lure linking to an SEO redirector (free-download phishing)'. The document body, though truncated, also contains numerous URLs and text suggesting a lure for a free printable document. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to deliver a phishing payload or further malware. No scripts were extracted, but the presence of numerous external links suggests the primary attack vector is directing users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9021

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://ragaz.co.za/YmrXLWy8?keyword=aha%20bls%20test%20version%20a%202016%20pdf%20free%20printable%20version PDF link annotation
    • http://finadev-groupe.com/userfiles/file/73617278369.pdfIn PDF document text
    • https://albertpalais.com/uploads/page-assets/files/79933676931.pdfIn PDF document text
    • http://binhthuocsau.com/hinhanh/file/ruregavomasef.pdfIn PDF document text
    • http://studiolorenzino.eu/userfiles/files/3209422196.pdfIn PDF document text
    • https://h1t-url12shio-turbo.com/contents/files/48168180123.pdfIn PDF document text
    • https://gadowawo.weebly.com/uploads/1/3/4/6/134630962/zoxekujixuv.pdfIn PDF document text
    • https://ppsu.cz/files/file/19035505728.pdfIn PDF document text
    • https://mp2020.csysadmin.com/ckfinder/userfiles/files/80506704751.pdfIn PDF document text
    • http://lammermoor.net/imagenes/file/12102328368.pdfIn PDF document text
    • https://phoenixturkey.com/upload/ckfinder/files/pesipekizowugopisuzer.pdfIn PDF document text
    • http://www.sname.org.tw/sname/ckfinder/userfiles/files/68340316655.pdfIn PDF document text
    • http://namaslennikova.ru/kcfinder/upload/files/77532822566.pdfIn PDF document text
    • http://kiengiahung.com/userfiles/file/menadariju.pdfIn PDF document text
    • http://msslink.ru/userfiles/files/20625361108.pdfIn PDF document text
    • https://wapejakibupoj.weebly.com/uploads/1/3/4/4/134480200/d063caa77d54cf.pdfIn PDF document text
    • https://mklaw.trakhes.com/dir-eg/dalel-eg/userfiles/file/74899011878.pdfIn PDF document text
    • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/162398ea0b04f4---41868668298.pdfIn PDF document text
    • http://undergroundspitters.nl/kcfinder/upload/files/pawaw.pdfIn PDF document text
    • https://hyundainhapkhau.vn/upload/files/93681978687.pdfIn PDF document text
    • http://korzo-galeria.hu/files/file/putipodobudivo.pdfIn PDF document text
    • http://coumert.com/images/file/13189157517.pdfIn PDF document text
    • http://textstricker.de/benutzerdateien/24328952752.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_off00049151.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00049151.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00049151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49151 21288 bytes
SHA-256: ac9b092bb2e1710ac797f97206e0c948153c1715b17e9cd482ebc8101b41e842
font_01_sfnt_off0004c7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C7BE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0004dfd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DFD5 11244 bytes
SHA-256: 7b10c7fe13c8e458a263d6884b5ad0923e759e88f9663e0686859742cedefcb1