Malicious PDF — malware analysis report

Static analysis result for SHA-256 e24d0e4ab6e8ae82…

MALICIOUS

PDF

72.2 KB Created: 2021-02-25 18:57:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 1deeca834ecce5430749cdfaabf020ba SHA-1: fc44274b5881660d8583a0e38734bf60b2eb28a9 SHA-256: e24d0e4ab6e8ae825dbcac802b8ed27c2e179fe97cada8d5363a0b4cd96e5494
186 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to disposable domains, indicative of a link farm or SEO poisoning attack. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and link farm behavior are common for initial infection vectors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/award?keyword=sunbeam+mixmaster+423a+manual PDF link annotation
    • https://cdn.sqhk.co/xafeperale/jikLpjg/betuliwuripokiwun.pdfIn PDF document text
    • https://cdn.sqhk.co/tipekafomube/Bkijgf1/fruit_ninja_online_cool_math_games.pdfIn PDF document text
    • http://rubisteq.online/60765009079jteog.pdfIn PDF document text
    • https://vixoketos.weebly.com/uploads/1/3/1/4/131453026/75db2a228e1160e.pdfIn PDF document text
    • https://cdn.sqhk.co/kagitenoru/fwk0cib/89549455672.pdfIn PDF document text
    • https://cdn.sqhk.co/ketixudolu/jbkXWjf/cupid_bingo_valentines_day_love_story.pdfIn PDF document text
    • http://mirinodok.iblogger.org/guided_access_iphone_lost_passcode.pdfIn PDF document text
    • https://cdn.sqhk.co/vatomepipiw/jfktggs/17072237974.pdfIn PDF document text
    • https://cdn.sqhk.co/jagugide/jfY31if/zulazeleg.pdfIn PDF document text
    • https://sasofisapen.weebly.com/uploads/1/3/4/5/134590640/jafalazejawan.pdfIn PDF document text
    • https://cdn.sqhk.co/juzivadareka/d2khcM0/barbie_fashion_closet_apk_download.pdfIn PDF document text
    • https://jadivamanug.weebly.com/uploads/1/3/4/8/134868371/finuluzubatomumi.pdfIn PDF document text
    • https://cdn.sqhk.co/wizevomorofe/iujbgeG/99745696685.pdfIn PDF document text
    • https://lepomanorep.weebly.com/uploads/1/3/4/8/134856804/ziminamam.pdfIn PDF document text
    • http://idealica-co.site/huawei_mate_10_lite_android_9._0oagzs.pdfIn PDF document text
    • http://sexesex.site/six_kingdoms_and_three_domains_worksheet8mbe0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wuwinot.rf.gd/blank_october_calendar_template_2019.pdfIn PDF document text
    • http://bubexixan.epizy.com/ccile_mclorin_salvant_dreams_and_daggers.pdfIn PDF document text
    • http://riramemixezu.epizy.com/99763630240.pdfIn PDF document text
    • http://kutijizon.epizy.com/animal_crossing_3ds_coffee_guide.pdfIn PDF document text
    • http://lepugip.epizy.com/death_note_movie_netflix_soundtrack.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBFD 5528 bytes
SHA-256: 5a0aa5dfb253c21672af68cceddbc7566433dd0bbda041b39cafaf33b808ef15
font_01_sfnt_off0000eeb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB7 10724 bytes
SHA-256: a1055cefa5bae8dd7fed60235dba2d58e571c36e9ad65f48dd9453e473876a5b

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