Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ea0d0b1ab133d5c…

MALICIOUS

PDF

82.0 KB Created: 2021-04-17 17:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: c038b1bc0ba5b07e6bf52de4cd150b8c SHA-1: c93254391cec2567394dcc35ce53f1cbba147267 SHA-256: 3ea0d0b1ab133d5ce00dd09261e1626923b46fb12612f42f4d603ce389191700
126 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one specifically identified as a phishing lure related to a non-functional oven. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of numerous links on disposable hosting suggests a link farm designed to obscure the final malicious destination.

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://botokaw.ru/strik?utm_term=my+oven+doesn%2527t+work+but+the+burners+do PDF link annotation
    • http://xosopinogagon.iblogger.org/kifuvajezos.pdfIn PDF document text
    • http://sefajoga.iblogger.org/cricket_score_sheet_15_overs.pdfIn PDF document text
    • http://jufawet.iblogger.org/pdf_to_word_apk_paid.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/icHShXf/cruise_ship_cook_jobs_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/jefulajidi/gcjaNgf/badlapur_video_songs_hd.pdfIn PDF document text
    • http://febafavawi.iblogger.org/14342679061.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/NHfhaj0/tukinipomumusuxemaki.pdfIn PDF document text
    • https://cdn.sqhk.co/sinemajud/fPhdgjD/old_telephone_ringtone_download_pagalworld.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://9e2bb560-353e-4f5d-a08b-1363560edab4.filesusr.com/ugd/6c032c_b397a6fce4514960926d1a0702e98832.pdf?index=trueIn PDF document text
    • https://02e0da19-eac5-4521-950b-4e410541bf1c.filesusr.com/ugd/516249_9ba7b800c34d498fbdca20dfabc242ba.pdf?index=trueIn PDF document text
    • http://mojilozijidula.epizy.com/92411392734.pdfIn PDF document text
    • http://votepawawirinu.rf.gd/bourree_piano.pdfIn PDF document text
    • https://4bbf79d8-97e4-42de-9a75-948158c354f0.filesusr.com/ugd/52f5d3_596a69dd637c46f6a46d177be616c96e.pdf?index=trueIn PDF document text
    • http://sovizurimi.rf.gd/jokozapibopexitaf.pdfIn PDF document text
    • http://fefekug.rf.gd/fimonadetedonivuz.pdfIn PDF document text
    • http://vimeniwofeb.rf.gd/gogid.pdfIn PDF document text
    • http://xovijoj.epizy.com/phonics_coloring_worksheets_kindergarten.pdfIn PDF document text
    • http://pekapajekuxipuj.rf.gd/casio_fx-cg20_programme_installieren.pdfIn PDF document text
    • http://siwojanapav.epizy.com/ajax_php_mysql.pdfIn PDF document text
    • http://peworesafasar.epizy.com/dilazorovowotuxules.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_off00010691.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10691 5168 bytes
SHA-256: 16e74abeb2e8c45e83656fbd99819de917b174e91a39b74504d35c5563d0ff7f
font_01_sfnt_off00011850.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11850 10092 bytes
SHA-256: f63f768ed3ddc0ae63492c1dfe63e82c49f50ac3e1ac0e74187f64f3452e3ff4

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