Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e2f488a9f456bf…

MALICIOUS

PDF

84.9 KB Created: 2021-06-29 11:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ce0b95efdd5f0c852e247bb1fd134263 SHA-1: bd9ab70cde2a214b1685261a5ee1d483853f8625 SHA-256: d1e2f488a9f456bf5c0fc7f76bf1f4b13f60d01735361627e4a1f6c3afb1c8ae
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many pointing to compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. No scripts were extracted, but the structure and URL patterns are consistent with a malicious PDF dropper.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://filetorme.com/upload/files/20818953906.pdf In PDF document text
    • http://edwardnugent.com/userfiles/files/togosizunewaxiropinemef.pdfIn PDF document text
    • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/7f4sulgbgv9m4iiqmr96s6jpu2/tutaxiravilavev.pdfIn PDF document text
    • https://glaze-metalart.com/upload/files/dovomunewawipixipopeten.pdfIn PDF document text
    • http://drsuthichai.com/userfiles/files/verimakipelipa.pdfIn PDF document text
    • https://hyosungulf.com/uploads/file/92625470580.pdfIn PDF document text
    • http://ilovehikari.com/uploads/files/89990939287.pdfIn PDF document text
    • https://angkoronetour.com/userfiles/file/30812306118.pdfIn PDF document text
    • http://playitdirect.ca/ckfinder/uploadfiles/files/32670792262.pdfIn PDF document text
    • http://doo-san.com/userfiles/file/20210522203444.pdfIn PDF document text
    • https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/858091fc456801ec1544c718af2e1f9b/leravavewanas.pdfIn PDF document text
    • https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/ia5nuaj4t16ljv6df8cs7r64j3/sumifosunejenikiw.pdfIn PDF document text
    • http://ausafe.net/images/art/files/38281377586.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160b4d3aadca6d---31821254010.pdfIn PDF document text
    • http://meble-tk.pl/userfiles/file/5227648151.pdfIn PDF document text
    • http://tamlaproject.com/userData/board/file/tasidesoniri.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e366f57bf1---54724012598.pdfIn PDF document text
    • http://xn--49s538bo8ux8c.net/userfiles/file/11757377839.pdfIn PDF document text
    • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/b46765c7a62228940c860cc233ac3baf/21295555272.pdfIn PDF document text
    • https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/76485381c5e52699ec90fb8124543c69/3191673105.pdfIn PDF document text
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/6e21522bf2bd25ac426022ea5466d844/vukejinimesasobo.pdfIn PDF document text
    • https://energooptima.hu/upload/File/10254274487.pdfIn PDF document text
    • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16073b70550639---87250795619.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=graph+with+two+y+axis+excelPDF link annotation
    • 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_off0000e988.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE988 16980 bytes
SHA-256: a556f4798dd1571bbc9277bbce93d0335b592cdfaab4a174494c324a7ea90dae
font_01_sfnt_off0001157e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1157E 10708 bytes
SHA-256: c18d577b1d23aa45fee64f439a9eeee699e0c35ae03f99242e6d330ad083328b
font_02_sfnt_off00012e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E5D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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