Malicious PDF — malware analysis report

Static analysis result for SHA-256 24a4c84bb18762d6…

MALICIOUS

PDF

76.9 KB Created: 2021-02-13 05:39:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 67609bc05cc222d4ec30f41795319902 SHA-1: 1780a4d64607f5a6b21b7a4a04b06088178f31d7 SHA-256: 24a4c84bb18762d612cd387d6fcf569204cf27d81984eed95cb78d235615a766
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan distribution attempt. It contains numerous embedded URLs, with several pointing to disposable hosting and acting as a link farm, suggesting an attempt to redirect users to malicious sites. The presence of external URIs and the overall structure point towards a phishing or malware delivery scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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://druttle.ru/wix?keyword=socket+mobile+scanner+s740+manual PDF link annotation
    • https://regisaralox.weebly.com/uploads/1/3/2/6/132681556/delabusixuk_nukidisumezeg_vituzamajida_jujesikiwa.pdfIn PDF document text
    • https://xinosete.weebly.com/uploads/1/3/0/9/130968926/vigadi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455673/normal_601778daa468e.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/blue_formal_dresses_with_sleeves.pdfIn PDF document text
    • https://cdn.sqhk.co/duzoxibuf/gjethjE/stickman_downhill_motocross_mod.pdfIn PDF document text
    • https://soxapibojewaw.weebly.com/uploads/1/3/5/3/135345372/jisulakep.pdfIn PDF document text
    • https://cdn.sqhk.co/wemitupu/heij5ib/taxolifalinerosivirozowo.pdfIn PDF document text
    • https://cdn.sqhk.co/zidexamuwela/O0jbHxG/how_to_draw_cartoon_hands_step_by_step.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/b4hadcB/8528171832.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470400/normal_601d4f3cb7c53.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450336/normal_5fc76f7d3e177.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416929/normal_6001d86a80405.pdfIn PDF document text
    • https://zajoralesame.weebly.com/uploads/1/3/0/9/130969459/374769.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374847/normal_6014021edfe33.pdfIn PDF document text
    • https://cdn.sqhk.co/vipujitebiki/dBchgC3/dedazuvixofilijaf.pdfIn PDF document text
    • https://cdn.sqhk.co/vakanaju/EheHjjN/89455120055.pdfIn PDF document text
    • https://sexitikimuzulab.weebly.com/uploads/1/3/5/2/135296232/4ed7cf68.pdfIn PDF document text
    • https://lumixomenuvaw.weebly.com/uploads/1/3/4/7/134745504/kusaxatox-xesizanamow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2DD 5444 bytes
SHA-256: a62d891fce313d5e371309ade9b0e40c781af66f83988a04d1da53e533ef7edf
font_01_sfnt_off0000f544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF544 10284 bytes
SHA-256: 2944df180c6aba16d84418e45b1e93ffc314040eb1a745165651bddfb34cb2bf
font_02_sfnt_off00011842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11842 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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