Malicious PDF — malware analysis report

Static analysis result for SHA-256 e370d732839f19f7…

MALICIOUS

PDF

79.3 KB Created: 2021-02-14 06:25:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: fd9607a9cc60fbd939476ed10abca926 SHA-1: cb51e5fcf3278e03f09649425dc2097aeebd6da0 SHA-256: e370d732839f19f7a75528f6ff723ab5bf175aa5c5855acbdc2f884a67345e14
126 Risk Score

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body, though heavily obfuscated, appears to be a lure related to a 'Bmw 3 series f30 service manual pdf'. No scripts were extracted, but the overall structure and heuristic firings indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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 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://bologen.ru/wix?keyword=bmw+3+series+f30+service+manual+pdf PDF link annotation
    • http://mgacessoria.online/reduce_free_download7k5v2.pdfIn PDF document text
    • https://cdn.sqhk.co/tatiwurixiwo/hje08N8/transfer_files_using_samsung_smart_switch.pdfIn PDF document text
    • http://semengergel.ru/lopuxedegadozekimitevubstvxg.pdfIn PDF document text
    • http://rawuzexo.iblogger.org/char-_broil_performance_5_burner_grill.pdfIn PDF document text
    • http://poguwukobewale.22web.org/66007851447.pdfIn PDF document text
    • https://cdn.sqhk.co/napefabet/czhevja/74778629011.pdfIn PDF document text
    • https://namosupegu.weebly.com/uploads/1/3/4/3/134313644/xivawarovijoto.pdfIn PDF document text
    • https://devudupaf.weebly.com/uploads/1/3/4/8/134880603/xulotifafoso.pdfIn PDF document text
    • https://womegirig.weebly.com/uploads/1/3/4/5/134506381/697501.pdfIn PDF document text
    • http://wowezixuxaxu.22web.org/nonprofit_collaboration_agreement_template.pdfIn PDF document text
    • https://cdn.sqhk.co/sotatixorawi/jcWjblL/push_em_all_character_names.pdfIn PDF document text
    • https://cdn.sqhk.co/noruwotil/jgeDmge/tiktok_filter_camera_app.pdfIn PDF document text
    • http://wusapibixabupak.iblogger.org/android_studio_gradle_sync_failed_unresolved_dependencies.pdfIn PDF document text
    • https://teregurejojexol.weebly.com/uploads/1/3/4/8/134879353/vimifukupejobot-tivoxojagujo-wewaxumuwa.pdfIn PDF document text
    • https://cdn.sqhk.co/dilizilozok/HhdTPjh/jozemapugulibexasitukele.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/chiari_1_malformation_on_mri.pdfIn PDF document text
    • http://sabolobu.epizy.com/bet365_apk_file_free.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/wozakisedopadu.pdfIn PDF document text
    • http://wupumod.rf.gd/vadopepi.pdfIn PDF document text
    • http://kalesas.rf.gd/wifajeziwufagabu.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/13128942949.pdfIn PDF document text
    • http://bafasoronejero.epizy.com/el_alfabeto_griego.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_off0000ec14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC14 5808 bytes
SHA-256: f8602a3ffdb7cfcc7b9fad447b1af86bf70a4249e9deb53f18f8019b5befdd1c
font_01_sfnt_off0000ffda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFDA 15376 bytes
SHA-256: 0d79e3133b3ec97c0b664a34bc07f67b45585c27e5e30430d0503fa9e51b9dcd

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