Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b1c6ad0ab206bc…

MALICIOUS

PDF

83.3 KB Created: 2022-04-06 02:37:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 91cf4e12952b6e13b1568ab973eb459f SHA-1: 3bf2aa53f46cde7a7968c6b30ed35c45e5f0a917 SHA-256: 72b1c6ad0ab206bcf2f1676c8404d1da03fcb77af438c9e1aef1c784ad8d98e2
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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.
  • 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://wirut.co.za/YmrXLWy8?keyword=percy%20jackson%20and%20the%20lightning%20thief%20musical%20soundtrack PDF link annotation
    • https://newtech-utm.pl/userfiles/file/girivefefosatawivi.pdfIn PDF document text
    • http://sopkambing.com/contents/files/xazebus.pdfIn PDF document text
    • https://kisuvali.weebly.com/uploads/1/3/1/1/131163683/sotasoj_sakataja_moxis.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/1b45946486d2c64c21c80b8a5732f14c/puditotakinusenozuxipa.pdfIn PDF document text
    • http://nandnee.com/admin/ckeditor/kcfinder/upload/files/zipitiko.pdfIn PDF document text
    • https://wipasajumavadus.weebly.com/uploads/1/3/4/7/134775966/5928241.pdfIn PDF document text
    • https://zerakekume.weebly.com/uploads/1/3/0/7/130739742/5266496.pdfIn PDF document text
    • http://ingenierie-mont-blanc.fr/kcfinder/upload/files/watidexudazis.pdfIn PDF document text
    • https://kefapadasogimok.weebly.com/uploads/1/3/4/6/134601884/ninisajeroxa.pdfIn PDF document text
    • https://kivoranove.weebly.com/uploads/1/3/4/6/134679810/79b7575a570.pdfIn PDF document text
    • http://aqbnb.com/uploadfile/file/66216973576.pdfIn PDF document text
    • https://welerenumabo.weebly.com/uploads/1/3/4/4/134467224/nabalubidajebibajo.pdfIn PDF document text
    • https://wanowozuvigamo.weebly.com/uploads/1/3/0/7/130738859/gedabiwid.pdfIn PDF document text
    • https://fupesovuzej.weebly.com/uploads/1/3/4/0/134016868/80606.pdfIn PDF document text
    • https://wegenagozej.weebly.com/uploads/1/3/5/3/135394478/692328.pdfIn PDF document text
    • http://cesishotel.com/res/wysiwyg/file/99058968918.pdfIn PDF document text
    • http://studiofapas.it/userfiles/files/58442700045.pdfIn PDF document text
    • http://yoga-privates.com/yoga-privates/file/301563852.pdfIn PDF document text
    • https://neposetami.weebly.com/uploads/1/3/4/6/134691268/davuvukuw_sisenaz_fonimoji_sojikideno.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 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_off0000dcc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC4 17512 bytes
SHA-256: 6bbd2c68154e7a02698cf9b3d2ec07a00a7394bbc1984a15088d7fb7bd594328
font_01_sfnt_off00010afb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AFB 11360 bytes
SHA-256: ec7dc0e3e70640e33bbfbd29a19e97fa03ac710e74688e5ed119468e2545b4b0
font_02_sfnt_off00012559.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12559 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1