Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f11c3f109474bb…

MALICIOUS

PDF

81.2 KB Created: 2022-03-28 09:22:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: 7cd4d79028b6e581439d664f22d0659a SHA-1: 95047228f49144872b5a5ae390b1c3784b6a6b12 SHA-256: a4f11c3f109474bb897bbc651f302d19875b54b7318d49b4335ce9b39757f524
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://colod.co.za/YmrXLWy8?keyword=how%20much%20is%20a%20starter%20for%20a%20craftsman%20riding%20lawn%20mower PDF link annotation
    • https://maxedojose.weebly.com/uploads/1/3/1/4/131452800/f61fac.pdfIn PDF document text
    • https://divetuguwopad.weebly.com/uploads/1/3/0/7/130739619/86f31da9.pdfIn PDF document text
    • https://fivalukovegobag.weebly.com/uploads/1/3/4/6/134693255/tagolupaloradin.pdfIn PDF document text
    • https://fifilukativoj.weebly.com/uploads/1/3/4/5/134509223/vaxinatagexovu.pdfIn PDF document text
    • https://motazejiwe.weebly.com/uploads/1/3/4/2/134266269/dfae00.pdfIn PDF document text
    • https://kejarokelevu.weebly.com/uploads/1/3/5/2/135297316/a1a07d0394e.pdfIn PDF document text
    • https://mulokigapasol.weebly.com/uploads/1/3/1/0/131070847/jefomuwiwefugujabivu.pdfIn PDF document text
    • https://fupesovuzej.weebly.com/uploads/1/3/4/0/134016868/sukenuzowefi.pdfIn PDF document text
    • https://vinibakuru.weebly.com/uploads/1/3/4/3/134310820/b2b09e366098.pdfIn PDF document text
    • https://vakuvovigoder.weebly.com/uploads/1/3/4/4/134467198/2900963.pdfIn PDF document text
    • https://pupurisozidoge.weebly.com/uploads/1/3/4/7/134742187/5073731.pdfIn PDF document text
    • https://terekutididir.weebly.com/uploads/1/3/0/9/130969195/sediwitenobavow.pdfIn PDF document text
    • https://vakitisize.weebly.com/uploads/1/3/4/0/134017930/34d14ef583.pdfIn PDF document text
    • https://bokepamukabina.weebly.com/uploads/1/3/5/2/135293240/nexat.pdfIn PDF document text
    • https://terabuzaxora.weebly.com/uploads/1/3/0/8/130814115/e76218.pdfIn PDF document text
    • https://kovibokasekur.weebly.com/uploads/1/3/4/8/134880184/ff8ef3.pdfIn PDF document text
    • https://fileduwefevara.weebly.com/uploads/1/3/4/3/134384607/8341c721d1f.pdfIn PDF document text
    • https://tewizoduwab.weebly.com/uploads/1/3/5/3/135341898/3f91249dd6faa.pdfIn PDF document text
    • https://kizatoruzosij.weebly.com/uploads/1/3/0/9/130969146/buxoxufunufex.pdfIn PDF document text
    • https://kofekatemate.weebly.com/uploads/1/3/2/8/132815318/vorabixubudelitufa.pdfIn PDF document text
    • https://wolagevujizerul.weebly.com/uploads/1/3/5/3/135316080/gowizozupid.pdfIn PDF document text
    • https://wuwiniwar.weebly.com/uploads/1/4/1/2/141218285/1a1467f.pdfIn PDF document text
    • https://xinefozi.weebly.com/uploads/1/3/0/7/130775465/palanum.pdfIn PDF document text
    • https://gexawagezawa.weebly.com/uploads/1/3/2/6/132682787/sefalerovi.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_off0000d965.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d965.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d965.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD965 11100 bytes
SHA-256: 1af7be257d44c8ee39ff7faaa665db977bdd4ac46ba23705eb18c404f07fbb39
font_01_sfnt_off0000f2ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EA 16992 bytes
SHA-256: caec1eac37ac9fba259f759e0bd9e7cfdd650098c9ce6ff7f5426ce53ce8c568
font_02_sfnt_off00011f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F36 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336