Malicious PDF — malware analysis report

Static analysis result for SHA-256 96e32813a8b188f1…

MALICIOUS

PDF

70.6 KB Created: 2021-02-17 16:28:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 087ccca784e3af68c8972960cf459752 SHA-1: 1a48cca3e3c76feca030e0c423297c6ed4b391a4 SHA-256: 96e32813a8b188f153e6770dade5e165d81de255c268db2540d328f23bf42929
166 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF file was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing and social engineering attack. The document body, though heavily obfuscated, contains references to a 'Java game programming course' and instructs the user to execute a command, aligning with ClickFix attack patterns designed to bypass security measures. The presence of numerous external URLs, many hosted on disposable domains, further supports its role as a lure for malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/aws?utm_term=java+game+programming+course PDF link annotation
    • https://mojenosude.weebly.com/uploads/1/3/1/3/131382274/kilenufijala_nabisu.pdfIn PDF document text
    • https://fuwewarudizikip.weebly.com/uploads/1/3/4/6/134644733/bojesofawobobe.pdfIn PDF document text
    • http://homearfes.com/google_authenticator_manual_key_formatu4ruc.pdfIn PDF document text
    • https://wugupuvexiso.weebly.com/uploads/1/3/0/9/130969254/puvawino.pdfIn PDF document text
    • http://ipai.online/applications_of_hplc_chromatographyhns5s.pdfIn PDF document text
    • https://sepuvomaxobaba.weebly.com/uploads/1/3/5/3/135311468/narinozinel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494429/normal_602cde26f23c9.pdfIn PDF document text
    • https://cdn.sqhk.co/jigixomavola/pjixojs/business_plan_examples_for_students.pdfIn PDF document text
    • http://organicsss.space/american_pronunciation_rulesqba80.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426263/normal_5fc6f1920e6c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455381/normal_60196f63d2f8c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sirusuve.epizy.com/bypass_frp_1._0_apk.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://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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD698 5272 bytes
SHA-256: c90e6a4250f18be8e1ce1bda838626f08085b1197e7e7c56a6c7b4499b05d8b8
font_01_sfnt_off0000e87e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE87E 10964 bytes
SHA-256: 0c61be1d29bcaf6a30005a61bbdd22282419a58fd08dce588f05220d88a6fbca

Open this report in the interactive analyzer, or submit your own file for analysis.