Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fcc13601c90db07…

MALICIOUS

PDF

138.5 KB Created: 2021-04-05 09:15:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: eefe3c2da42f01df7d59d6e1aad29a0d SHA-1: 3b241b0d3558fa55213a826c2af33f7fb68c2b55 SHA-256: 9fcc13601c90db077f7235b3897ea4e1f2f6ffaf0391a455537920abbccd8a1b
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, many hosted on disposable domains, suggesting a link farm or SEO spam campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were extracted, the PDF structure and embedded URLs point towards a tactic of directing users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://soxebez.ru/wix?keyword=sistema+planetario+solar+actual PDF link annotation
    • https://xulozajewe.weebly.com/uploads/1/3/1/3/131384688/wuvadubut.pdfIn PDF document text
    • https://kasorewo.weebly.com/uploads/1/3/2/7/132740312/3329821.pdfIn PDF document text
    • https://darifojiwuz.weebly.com/uploads/1/3/4/5/134588766/5498226.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/animator_job_information.pdfIn PDF document text
    • http://manaxupupili.iblogger.org/sample_agenda_and_minutes_templates.pdfIn PDF document text
    • http://newutatokulu.getenjoyment.net/jevukiw.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/sarotujesaxum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407069/normal_6056845a26570.pdfIn PDF document text
    • http://gugolufixa.mywebcommunity.org/libro_de_los_caballeros_templarios_de_michoacan.pdfIn PDF document text
    • https://takimibovejexi.weebly.com/uploads/1/3/4/5/134512521/376131.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/piwirabezeza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493282/normal_6019c91b1afd8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380072/normal_5fe16c51833e7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://aa3bb5c3-2bd4-4791-9e2a-6e31d5009b04.filesusr.com/ugd/60e703_9295aab9207a42f5af920b8fd10c8e87.pdf?index=trueIn PDF document text
    • http://wizuxamop.rf.gd/30781637897.pdfIn PDF document text
    • https://aa514bbb-a96e-4bc9-8ff3-0ca2edd1104f.filesusr.com/ugd/3fc21f_f9d14eb497334b329346dffc28a78469.pdf?index=trueIn PDF document text
    • http://fixadamobus.epizy.com/80357825193.pdfIn PDF document text
    • https://91e55214-10ad-44cf-a10a-60a9392df58b.filesusr.com/ugd/e1c37d_5edd177b1d0b48e5a6998b239c3954ec.pdf?index=trueIn PDF document text
    • http://dipijiz.epizy.com/agile_testing_lisa_crispin_janet_gregory.pdfIn PDF document text
    • http://xizokenimufewom.atwebpages.com/22352796925.pdfIn PDF document text
    • https://b73b9701-b1df-43be-b031-73419f87697c.filesusr.com/ugd/bfbd96_b43dd094e1174326a4c91210ad3913b1.pdf?index=trueIn PDF document text
    • https://48e6b720-b653-4920-beb0-7ef171ab6ab9.filesusr.com/ugd/d9d1f5_034aa68c9ac546579b1ab893453fc462.pdf?index=trueIn 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://scripts.sil.org/OFLIn 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_off0001c3c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C3C4 5180 bytes
SHA-256: bc79292c0d5dfc0f105a8793a6291ea3a8b3ee7ad75ba931a157d3cd0e1778d6
font_01_sfnt_off0001d544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D544 14772 bytes
SHA-256: b901ae186f656375409afa693edd32ff14f028b62ad817549225db46bd316cfa
font_02_sfnt_off000204cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x204CD 16272 bytes
SHA-256: a1d034c4899da820a17195885c2d76cd6be3fce17d3f1660d9b3805b34643d2d