Malicious PDF — malware analysis report

Static analysis result for SHA-256 5527fc6f83f66fd9…

MALICIOUS

PDF

65.1 KB Created: 2022-03-30 23:59:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 69faa3f54e048716394eccaad8d55e65 SHA-1: 1ab369bbb0ff93f3208ef7ecc8dd4e2cc5e0424b SHA-256: 5527fc6f83f66fd9ee60362d5d18f82bffa3e04861908ffef40f0ae190f06d64
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://radofagomomixa.weebly.com/uploads/1/3/4/1/134132329/5524588.pdf In PDF document text
    • https://mashura.co/userfiles/files/44145910634.pdfIn PDF document text
    • http://nena-artspace.com/ckfinder/userfiles/files/17656805345.pdfIn PDF document text
    • http://gayaarchi.com/userfiles/file/20220205182458.pdfIn PDF document text
    • http://gatewayhotelbangkok.com/upfile_hotel/files/99682097354.pdfIn PDF document text
    • http://www.saveurspoitoucharentes.com/admin/ckfinder/userfiles/files/fonazitubofufu.pdfIn PDF document text
    • https://rutejiredoratel.weebly.com/uploads/1/3/1/3/131383841/poparixipibiw.pdfIn PDF document text
    • https://www.silverskilled.com/gateway/kcfinder/upload/files/79877719955.pdfIn PDF document text
    • https://branpc.in/ckfinder/userfiles/files/38953444444.pdfIn PDF document text
    • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1622bd90553c08---54379759277.pdfIn PDF document text
    • https://tilesutetogetu.weebly.com/uploads/1/3/4/0/134042518/93182a19d.pdfIn PDF document text
    • http://artpolyclinic.com/file/files/xofuromefosubogojomafe.pdfIn PDF document text
    • http://absolutelyneon.com/userfiles/file/78614731227.pdfIn PDF document text
    • http://mxagproducts.com/upload/browse/file/divamofoxadem.pdfIn PDF document text
    • https://www.3gimmobilier.com/kcfinder/upload/files/76464720315.pdfIn PDF document text
    • http://compow.net/ckfinder/userfiles/files/ponivaxin.pdfIn PDF document text
    • http://chafewyuok.handysociality.com/upload/files/wezaremok.pdfIn PDF document text
    • https://xipixipoduk.weebly.com/uploads/1/3/7/5/137501676/eb23c7.pdfIn PDF document text
    • https://sipedevesebin.weebly.com/uploads/1/3/4/8/134879103/pedividifeti-rifak.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/bc4d714a52ef1f8770f135d62a9e7748/diwesamobegenexijego.pdfIn PDF document text
    • http://bio-scan.com/userfiles/file/3628739648.pdfIn PDF document text
    • https://piwunosorelid.weebly.com/uploads/1/3/4/5/134590209/gadoxas.pdfIn PDF document text
    • https://votoliju.weebly.com/uploads/1/3/1/4/131453024/bfa0a92cc0ab.pdfIn PDF document text
    • https://colod.co.za/YmrXLWy8?keyword=how%20to%20find%20derivatives%20of%20functionsPDF 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 extracted file (font_00_sfnt_off00009d9c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00009d9c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009d9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D9C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000b43b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB43B 16288 bytes
SHA-256: aef72b0cde924a883c4a9cf160451ca5318b464cacc7036ff5040585e1c17d12
font_02_sfnt_off0000dea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA5 10664 bytes
SHA-256: 219cf2d9d505255e0536137e24c831d582f68b1ee964feef7bc57b25f3126a87