Malicious PDF — malware analysis report

Static analysis result for SHA-256 4459f05c5b8f783a…

MALICIOUS

PDF

76.8 KB Created: 2022-04-13 17:10:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 6764281f168370bf7824e4540638e1f1 SHA-1: 9219382472227d1d11476d2ef604dc19786f9f2a SHA-256: 4459f05c5b8f783aad0a1d898d0bc15643d87e8cde39b33a7a349962915e12f8
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many hosted on disposable domains like Weebly, suggesting a link farm for phishing or malware distribution. The presence of a specific URL related to 'kingkiller chronicles movie trailer' indicates a lure to attract user clicks. ClamAV and ML heuristics confirm the malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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://cafij.co.za/YmrXLWy8?keyword=kingkiller%20chronicles%20movie%20trailer PDF link annotation
    • https://rovuxunezonode.weebly.com/uploads/1/3/4/4/134494657/6ee11cf8d0f8.pdfIn PDF document text
    • https://fixelomutitag.weebly.com/uploads/1/3/4/3/134339240/9835918.pdfIn PDF document text
    • http://bookblog.kr/data/file/files/tekixuzejusanib.pdfIn PDF document text
    • https://tenigirexono.weebly.com/uploads/1/3/4/6/134645883/matebejipu.pdfIn PDF document text
    • http://lor-rostov.su/userfiles/files/79080232890.pdfIn PDF document text
    • https://pamaridefudeluz.weebly.com/uploads/1/3/0/7/130776324/goxibevaniwoj_jipisijokajile_mulokezaxogivo.pdfIn PDF document text
    • https://zavelodenewiguj.weebly.com/uploads/1/3/5/3/135314669/44280c51.pdfIn PDF document text
    • https://falopizesolirod.weebly.com/uploads/1/3/1/3/131379111/04bed3f3492534.pdfIn PDF document text
    • https://dufejubodumafeb.weebly.com/uploads/1/3/4/4/134444341/keranuzop.pdfIn PDF document text
    • https://dijujuvosidig.weebly.com/uploads/1/3/0/8/130873718/befozego.pdfIn PDF document text
    • https://sekamaxe.weebly.com/uploads/1/3/4/5/134590712/1497793.pdfIn PDF document text
    • https://linezeludamaxen.weebly.com/uploads/1/3/4/3/134340908/8683362.pdfIn PDF document text
    • https://gejiwafut.weebly.com/uploads/1/3/2/6/132683005/1342593.pdfIn PDF document text
    • https://nofogiso.weebly.com/uploads/1/3/1/3/131398128/1723757.pdfIn PDF document text
    • https://rovetizewi.weebly.com/uploads/1/3/0/7/130776299/jajopimepevinoxotepe.pdfIn PDF document text
    • http://tmkb.org.tr/ckfinder/userfiles/files/silenodukavovifa.pdfIn PDF document text
    • http://xlpe.net/Images_upload/files/34654862596.pdfIn PDF document text
    • https://jurijibo.weebly.com/uploads/1/3/0/8/130874645/kirowupizeden.pdfIn PDF document text
    • https://zubaxibigiw.weebly.com/uploads/1/4/1/3/141302229/035199d.pdfIn PDF document text
    • https://marulokovew.weebly.com/uploads/1/3/4/6/134611896/7406146.pdfIn PDF document text
    • https://gexawagezawa.weebly.com/uploads/1/3/2/6/132682787/gonojes.pdfIn PDF document text
    • https://zumefegipim.weebly.com/uploads/1/3/4/6/134609591/3275113.pdfIn PDF document text
    • https://ralugegab.weebly.com/uploads/1/3/4/8/134888835/67d50fc8538fb7.pdfIn PDF document text
    • https://centralleiloes.com.br/admincentral/ckeditor/kcfinder/upload/files/mepizezadejanuso.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_off0000c5f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5F4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000de06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE06 17084 bytes
SHA-256: 8bac44e7fc8e1af720def07435fcec5e47a205c6db9759b14136c9cb5c3238f5
font_02_sfnt_off00010aae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AAE 10828 bytes
SHA-256: 3e0d346e08fec8fcd0a0c113e5132cabe3d0df135ae62446caac5710fd7d3a36