Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d37a83b57d85c0a…

MALICIOUS

PDF

88.7 KB Created: 2021-07-31 22:32:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 117b755435ce8142497e8f59607b07c4 SHA-1: 0e4a3a843f892f177da0d3971f287f11cdde2c87 SHA-256: 0d37a83b57d85c0a3c221a404dd6fb1fc8b4add0ab95ba1da34f6727fe6bd354
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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
  • 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 http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7b70eceda---38846761443.pdf In PDF document text
    • http://sushiloverca.com/uploads/files/pidifamij.pdfIn PDF document text
    • https://mamadona.ru/ckfinder/userfiles/files/zifivugoxajigomatokug.pdfIn PDF document text
    • http://asja-doll.ru/userfiles/file/59186402882.pdfIn PDF document text
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160986e621dcf1---bonigekujajumanopuxutud.pdfIn PDF document text
    • https://www.bistro-e.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078d47d8d4d8---bufofisonemitazu.pdfIn PDF document text
    • https://bodegoncriollo.com/userfiles/file/95583665416.pdfIn PDF document text
    • https://bluebeakbranding.com/wp-content/plugins/super-forms/uploads/php/files/0c2a2c9da46260c8bc7efee08ce9355c/14534587002.pdfIn PDF document text
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b883163310f---57047137472.pdfIn PDF document text
    • http://perles-del-beya.com/userfiles/file/56540590693.pdfIn PDF document text
    • http://meble-tk.pl/userfiles/file/lupamufelunavuted.pdfIn PDF document text
    • https://kalnapilis.lt/kalnapilis/web/web/ckfinder/userfiles/files/49911398734.pdfIn PDF document text
    • http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/d1046c689ec2f399114108afa88e7836/19031059405.pdfIn PDF document text
    • https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/mdvbklrraktpbf15h7p54lr4a5/guxikilukejavunif.pdfIn PDF document text
    • https://nepalipublisher.com/ckfinder/userfiles/files/letapu.pdfIn PDF document text
    • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099ab314379f---65431661077.pdfIn PDF document text
    • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/a8205d08f7d78c8b13b759048e49a577/jovobezelili.pdfIn PDF document text
    • http://gps-tw.com/CKEdit/upload/files/wekawokepiwel.pdfIn PDF document text
    • http://xn--80aafbkbafwdti1ahihccrg.xn--p1ai/pict/file/favevevug.pdfIn PDF document text
    • http://havefuntogether.com/image/upload/File/damitobem.pdfIn PDF document text
    • https://tonwen.org/userfiles/file/69764176030.pdfIn PDF document text
    • http://beiwendq.com//data/attachment/file/gemopisetonilubezizawol.pdfIn PDF document text
    • http://curry-box-deluxe.de/userfiles/file/fifisigazejew.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/ff5a62a147b7f9ac35961aea40ccb4bd/wowugetegibinopoja.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=diccionario+frances+espa%C3%B1ol+googlePDF 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_off0000f2c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C7 10764 bytes
SHA-256: 295c2b73af847e3a2c555ab37e75faca24c7218795802243441860ee76000c5d
font_01_sfnt_off00010b66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B66 19008 bytes
SHA-256: db180ca238b8af2eb9331c4dbba591aca5692e77fa28c46da09ecf37f0e911a5
font_02_sfnt_off00013a95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A95 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1