Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2eaf59785ecfe7…

MALICIOUS

PDF

77.6 KB Created: 2022-04-12 18:35:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 52b31d13b6c74c53f12ff53ae4923796 SHA-1: 7e342e34f523c666f3ac3b0eb2e51d2efa1eed8d SHA-256: af2eaf59785ecfe76979523d64f898904cbdf309049a121cd4bae61bec266561
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://norin.co.za/YmrXLWy8?keyword=how%20to%20use%20photoshop%202020%20for%20beginners PDF link annotation
    • http://murzilka.biz/images/uploads/file/komel.pdfIn PDF document text
    • https://rinedasufuketon.weebly.com/uploads/1/3/4/3/134340565/a691dbc.pdfIn PDF document text
    • http://reklamnizbozi.cz/data/upload/files/10912365215.pdfIn PDF document text
    • http://colorfulmedia.de/fotki/fotki/file/32026371158.pdfIn PDF document text
    • https://rafaellopezehijo.com/upload/files/pebal.pdfIn PDF document text
    • https://anep.it/ckeditor/kcfinder/upload/files/15879695118.pdfIn PDF document text
    • https://misixaduw.weebly.com/uploads/1/4/1/3/141334749/ratexibop_dobojiveji_ladinelo.pdfIn PDF document text
    • https://stormmasterroof.com/nbloom/fckuploads/file/11759452087.pdfIn PDF document text
    • https://gatozobid.weebly.com/uploads/1/3/4/4/134499043/josipof.pdfIn PDF document text
    • https://xarefiliji.weebly.com/uploads/1/3/4/7/134735925/pulupavuluw.pdfIn PDF document text
    • https://dojibabebane.weebly.com/uploads/1/3/2/6/132682208/2c1e436.pdfIn PDF document text
    • https://stichtingech.org/ckfinder/userfiles/files/vumogozumezuzijedisefu.pdfIn PDF document text
    • https://muwalivom.weebly.com/uploads/1/3/2/6/132695892/jasajamaw-wizelitiv-divapime-zaverafiwemoloj.pdfIn PDF document text
    • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/33a9352d75fb9e56406c7bd85181929d/38284981576.pdfIn PDF document text
    • https://wazurewimi.weebly.com/uploads/1/3/4/5/134598950/zumuxovobofisi.pdfIn PDF document text
    • https://nenikekawudiw.weebly.com/uploads/1/3/4/4/134468161/rujazilateper-fupepevakoxi-pujanolaja.pdfIn PDF document text
    • http://phuwangnam.com/user_file/file/79324090202.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_off0000c830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC830 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e047.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE047 10988 bytes
SHA-256: cc5f30981f6d84b585c0a06820274943a23aea69cdde5fd30d2bfeda20c8fb22
font_02_sfnt_off0000f99a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF99A 17760 bytes
SHA-256: 96bb05f05b6a92e91d3b82d321c8b835538f75830aa609d73e966d0fb90c4c54

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