Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f464945b32cb77…

MALICIOUS

PDF

82.0 KB Created: 2021-09-19 12:06:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: c7f55617177883312a86d12290ed2e17 SHA-1: 71460ac9ee2f318932136212307f6ecf4d3d77c2 SHA-256: a4f464945b32cb77f3a30bda689c935656170cd705114c9ca487847e0e43c80c
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9911

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pistant.ru/uplcv?utm_term=p8+lite+2017+rom PDF link annotation
    • http://goksirkrupskimlyn.pl/img/upload/files/59883948324.pdfIn PDF document text
    • https://derya.afmiletisimajansi.info/resimler/files/weletidukog.pdfIn PDF document text
    • http://yjccnc.com/upload/files/kegidalarezanij.pdfIn PDF document text
    • https://ubranni.com/uploader/files/gawitorisajana.pdfIn PDF document text
    • https://onecre.com/images/content/files/62613721430.pdfIn PDF document text
    • http://kiajihlava.cz/UserFiles/File/vetibuluja.pdfIn PDF document text
    • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161435dda1c18e---bakijiwupim.pdfIn PDF document text
    • https://incense888.com/uploads/files/202109160344546039.pdfIn PDF document text
    • https://futurefacesmiami.com/uploads/file/gubuj.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16142ce88249df---fezavepadodunaleva.pdfIn PDF document text
    • https://legend-chang.com/UserFiles/files/modudumikudulaxada.pdfIn PDF document text
    • http://185.33.116.145/~acus01/upload/files/tuwalisawoboside.pdfPDF link annotation
    • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613fee30e229c---13483699539.pdfIn PDF document text
    • http://wdnederland.nl/file/varekafubu.pdfIn PDF document text
    • http://abwmercury.com/uploads/files/49291968628.pdfIn PDF document text
    • https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137d8ca53032---99323697010.pdfIn PDF document text
    • https://woodfur.in/userfiles/file/gagapajepek.pdfIn PDF document text
    • https://tktravelkorea.com/FileData/ckfinder/files/20210909_2D3896F37D46F095.pdfIn PDF document text
    • http://www.globalnautique.nl/upload/files/zubifido.pdfIn PDF document text
    • http://garankuccu.com/upload/fckimagesfile/59e37132597510b840471d09301bd785.pdfIn PDF document text
    • http://leebyunghun.kr/new/upload/board/files/vetadisugakexi.pdfIn PDF document text
    • https://gencshow.com/upload/ckfinder/files/bubusalilelamazobarine.pdfIn PDF document text
    • https://nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/87989604337.pdfIn PDF document text
    • https://francois-daulte.com/ckfinder/userfiles/files/juritatenapugigukabew.pdfIn PDF document text
    • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/5ed2501e421a088247b58421c2f5bf91/ramejap.pdfIn PDF document text
    • http://gaushalango.com/uploaded_files/userfiles/files/dokilamituxewaruwefi.pdfIn PDF document text
    • http://tsg-edinstvo.ru/userfiles/file/pebogafefosar.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_off0000db7b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000db7b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB7B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f392.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF392 10388 bytes
SHA-256: 6dc31b6cc3b2cf49a4dd158292f6f3864a98b635701565e646eaf7080ed4c1fa
font_02_sfnt_off00010b30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B30 18228 bytes
SHA-256: 9384b93f046f5d2eef75147b69598fe11fee847f035e33cc2cf5f795c4239139