Malicious PDF — malware analysis report

Static analysis result for SHA-256 44539e91ce181307…

MALICIOUS

PDF

81.9 KB Created: 2022-04-10 19:49:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: e500c56d9b9fd05a75543d6a3a8f8e47 SHA-1: 27c6fcb8d35d92556777ce375355310b376ae1ba SHA-256: 44539e91ce1813074bcf7f2ee5eb9723387633eec90c3bafa537b32df23f324a
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The PDF contains a large number of embedded URLs, many pointing to disposable domains or link farms, suggesting a phishing or malware distribution campaign. While no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://podar.co.za/YmrXLWy8?keyword=general%20merchandise%20retailers%20near%20me PDF link annotation
    • http://hdg-gmuend.de/userfiles/files/ziwijotavonig.pdfIn PDF document text
    • https://dixawofira.weebly.com/uploads/1/3/5/3/135303501/sefiwuxufofo-japudulo-zesoxusuv-finakagun.pdfIn PDF document text
    • http://mediaworld.pro/ckfinder/userfiles/files/31017543978.pdfIn PDF document text
    • https://ludamezowi.weebly.com/uploads/1/3/4/1/134131800/rimulevuzejinumam.pdfIn PDF document text
    • https://kipopidetudi.weebly.com/uploads/1/3/1/4/131407440/pejosunavotedi.pdfIn PDF document text
    • https://rojanebe.weebly.com/uploads/1/3/1/6/131637229/xoledukizaxipu-delogen-supesuto-gogikoxetar.pdfIn PDF document text
    • https://dekizojumuleje.weebly.com/uploads/1/3/4/1/134133140/rifikisuluzipijir.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/vivugeganubu.pdfIn PDF document text
    • https://betetaguzom.weebly.com/uploads/1/3/2/3/132303315/nitejigewonijodepev.pdfIn PDF document text
    • https://www.systemswecare.com/admin/kcfinder/upload/files/19316010423.pdfIn PDF document text
    • http://progetec.org/userfiles/files/xuxototuwamagegofiwup.pdfIn PDF document text
    • https://pojikajuruwasi.weebly.com/uploads/1/3/2/6/132695468/8704231.pdfIn PDF document text
    • http://autoscuolauniversale.it/userfiles/files/fabuvonowakifixun.pdfIn PDF document text
    • http://michael-dhom.com/webseiten/file/dixexumofomakolilufobon.pdfIn PDF document text
    • http://fantalife.nl/userfiles/file/42983420510.pdfIn PDF document text
    • http://www.gulbaharsigorta.com/contentData/file/jiwabu.pdfIn PDF document text
    • https://iasvn.org/Images_upload/files/41655734426.pdfIn PDF document text
    • http://www.armstrongre.com/files/files/kobewaberosukez.pdfIn PDF document text
    • http://pastoret.it/userfiles/files/tozalaperivam.pdfIn PDF document text
    • http://diagnosticaedilizia.com/userfiles/files/sutarolo.pdfIn PDF document text
    • http://eortak.com/img/fck_temp/file/dimupovizusosaxosanukabuw.pdfIn PDF document text
    • http://epilia.com/upload/FCKEditorfile/96067546336.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_off0000dac4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC4 10552 bytes
SHA-256: 7db8094937b0eeb13107050eed4a6625f2bea3bf4b1d0843bbe522eb05e1c988
font_01_sfnt_off0000f290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF290 17952 bytes
SHA-256: 439ff47d4b156dfd796eec54b22f16011c93c2b9e9be2707139821c703177098
font_02_sfnt_off0001213c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1213C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1