Malicious PDF — malware analysis report

Static analysis result for SHA-256 d884b5f755f89236…

MALICIOUS

PDF

52.3 KB Created: 2021-02-17 20:50:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4ebec6bff1ab3447927ca67259e7bba1 SHA-1: 08e1965cb473af7a47e5e56fd3268b8b1d7ec1e9 SHA-256: d884b5f755f89236b977d09f9974ae352378d176f740fa6d6b100333eabaf7be
184 Risk Score

Malware Insights

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

The PDF contains a large number of external links, indicating a link farm or redirection scheme. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. Although no scripts were extracted, the PDF structure and numerous external URLs point towards an attempt to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8283

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://druttle.ru/aws?utm_term=goodnight+moon+lyrics+jack+ingram PDF link annotation
    • https://lisiruzefixa.weebly.com/uploads/1/3/4/4/134495270/714061.pdfIn PDF document text
    • https://cdn.sqhk.co/webuzifinuno/hbWRhjc/gojefapigidaz.pdfIn PDF document text
    • http://gazopulodagifus.iblogger.org/panda_vpn_premium_apk_cracked.pdfIn PDF document text
    • http://rewita.fun/68470800132qe0ro.pdfIn PDF document text
    • http://ca-management.website/negative_personality_adjectives_list8cn8b.pdfIn PDF document text
    • https://cdn.sqhk.co/mivivezar/ijpichc/soothing_sounds_app_ios.pdfIn PDF document text
    • http://serikanipesemo.iblogger.org/51383374420.pdfIn PDF document text
    • https://dibasipelop.weebly.com/uploads/1/3/0/7/130738559/9a661acc.pdfIn PDF document text
    • https://gaduforijap.weebly.com/uploads/1/3/1/3/131381464/tazes.pdfIn PDF document text
    • https://wutowenejeboz.weebly.com/uploads/1/3/4/5/134599911/3220008.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/fyifzii/sibomexad.pdfIn PDF document text
    • https://xatevixi.weebly.com/uploads/1/3/4/6/134651360/5163785.pdfIn PDF document text
    • https://vizexetu.weebly.com/uploads/1/3/4/8/134864552/metuwuxepebuzokesa.pdfIn PDF document text
    • https://lekemevegov.weebly.com/uploads/1/3/1/4/131410090/779836.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wuzuvulas.epizy.com/cahps_survey_2019.pdfIn PDF document text
    • http://wiwawilif.epizy.com/epidemiologia_clinica_aspectos_fundamentales_fletcher.pdfIn PDF document text
    • http://difavaxegugadu.epizy.com/21999907070.pdfIn PDF document text
    • http://wulitebajanuba.rf.gd/mawonif.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB502 5628 bytes
SHA-256: 0dd2c9ceef1ac29c139b1eeba164904ca67c26bd1e26c9c56f94ad410af069c7

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