Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07ce28a3f9b26ce…

MALICIOUS

PDF

80.7 KB Created: 2022-03-29 22:59:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-07
MD5: fed8df4bb9b1feb5fc3008b9ad4633f4 SHA-1: 38e81773d0c03c42079e14f6da9459061d05a5dd SHA-256: d07ce28a3f9b26ce5b8c84e8b1af7490c634411fffb23a29677ec10cd709cffe
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://zebewanuvaxa.weebly.com/uploads/1/3/4/6/134613040/volesum-wafuxofubig-timosifakojef.pdf In PDF document text
    • https://molusodufewi.weebly.com/uploads/1/3/4/4/134465793/9710125.pdfIn PDF document text
    • http://naturalfurnish.com/userfiles/file/tazalumagupakawasakalu.pdfIn PDF document text
    • http://amandamaitland.com/images/file/tudubefuvapazelabakilase.pdfIn PDF document text
    • https://rajatotogroup4.com/contents/files/17802126716.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1620eb499f1904---xewexinavevuzuzobugalaxul.pdfIn PDF document text
    • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/s4bbajig5225q4qvnv6idn69tr/92628699601.pdfIn PDF document text
    • https://telutifezidawu.weebly.com/uploads/1/3/4/6/134624569/resesizefak-sizajanu-sipelizivisifop-lajilomilez.pdfIn PDF document text
    • https://tiwovukixata.weebly.com/uploads/1/3/4/3/134314311/xenituvubitobevufara.pdfIn PDF document text
    • https://rokumipizo.weebly.com/uploads/1/3/0/7/130776068/paxabijafakopug-dapamexuzi-xidusogekota.pdfIn PDF document text
    • http://jpsacademy.com/slbdavbatala/userfiles/file/fukujifilisitudurakojubo.pdfIn PDF document text
    • https://divigutokorafo.weebly.com/uploads/1/3/4/6/134683056/fukig.pdfIn PDF document text
    • https://neloramobipetez.weebly.com/uploads/1/3/1/4/131407165/6125584.pdfIn PDF document text
    • https://arkadas.yuzuktr.com/eskortarama.com/resimler/file/xabizixusakosisaket.pdfIn PDF document text
    • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622aa5017933e---59958593160.pdfIn PDF document text
    • https://mefusinumobidal.weebly.com/uploads/1/3/4/6/134679396/1ec7963a0ceb060.pdfIn PDF document text
    • http://home-plast.ru/foto/files/90703234790.pdfIn PDF document text
    • https://stopserv.ru/files/file/jutogi.pdfIn PDF document text
    • http://status-go.net/gfx/userfiles/files/93216960800.pdfIn PDF document text
    • https://sunuf.co.za/YmrXLWy8?keyword=harry%20potter%20y%20el%20prisionero%20de%20azkaban%20ilustrado%20chilePDF link annotation
    • https://dibixudu.weebly.com/uploads/1/3/4/5/134528380/23175b2.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_off0000bc40.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bc40.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC40 16140 bytes
SHA-256: 00b1f632e8afe72716c8bcdb76b7901b56c060d1dc0f96f3f5c1b8373b85735b
font_01_sfnt_off0000d1b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1B8 18440 bytes
SHA-256: f7188f8e3c7a01a5dc455a2c9daab0f319b14b2068bb5cdb5b8957d241119b41
font_02_sfnt_off0001013d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1013D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_03_sfnt_off000117e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117E1 11108 bytes
SHA-256: d7682ad3c38d7abc78c1341aaf6db9f63ba80e0efadec275305bb4eecbe8b737