Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2761602304e2985…

MALICIOUS

PDF

76.4 KB Created: 2021-03-23 21:55:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d2c935bdb3ee2dbbc62b6cc64111686 SHA-1: 34836f48934eb98a59021a3681eef477d84a9492 SHA-256: e2761602304e29854c60cc452c23f23a8d7ab3916939c0ec4120dc7cd9d58fae
126 Risk Score

Malware Insights

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

The PDF file contains embedded URLs and heuristic detections indicating it is a link farm designed to redirect users to potentially malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. The presence of 'Spotify songs onto phone' in the document body suggests a lure to entice clicks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://lozipotod.ru/123?utm_term=spotify+songs+onto+phone
    • http://mopowataxix.medianewsonline.com/wijaj.pdf
    • http://wamuwosola.mygamesonline.org/how_to_write_a_research_paper_apa_format_example.pdf
    • http://pukebebizadolu.mypressonline.com/b._com_syllabus_2020_19.pdf
    • https://wimukevefom.weebly.com/uploads/1/3/0/7/130739067/7404882.pdf
    • http://miraluvofizobe.medianewsonline.com/fisiopatologia_de_apnea_del_sueo.pdf
    • http://dimozakebaba.scienceontheweb.net/how_to_delete_facebook_account_2020_ios.pdf
    • https://static.s123-cdn-static.com/uploads/4495269/normal_5ff9cd638a70a.pdf
    • http://hocostyle.ru/where_to_get_bose_wave_radio_repairr4hnc.pdf
    • https://cdn-cms.f-static.net/uploads/4500189/normal_5fe72bc4331a3.pdf
    • http://websporizle3.com/pukugited54jts.pdf
    • http://bachanalytics.com/75546281189c67ue.pdf
    • https://cdn-cms.f-static.net/uploads/4402486/normal_6050b0a56d2c8.pdf
    • https://vidafipi.weebly.com/uploads/1/3/1/6/131636743/leluf.pdf
    • https://cdn-cms.f-static.net/uploads/4490273/normal_603b63f289a27.pdf
    • https://cdn-cms.f-static.net/uploads/4471959/normal_602b99785df07.pdf
    • http://miiliioner.xyz/mississippi_trial_1955_chapter_3_summaryp7udp.pdf
    • http://warixedivukinat.mygamesonline.org/skin_abscess_treatment.pdf
    • http://pinopizo.sportsontheweb.net/welcome_speech_for_independence_day_in_school_by_teachers.pdf
    • http://semasinizitowo.medianewsonline.com/57784974078.pdf
    • http://wepijafiguwenan.mywebcommunity.org/jomowosawinafowuxevuxo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://motuvogipe.onlinewebshop.net/frases_adverbiales_en_ingles.pdf
    • http://degevojorak.myartsonline.com/bohemian_rhapsody_tabs.pdf
    • http://rujidafedisezu.atwebpages.com/brother_hl_2140.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e967.bin
f2eddbe8c4c3771d5813fdce23fba0e8a1d6484415bf80c5d5d484fa033b8079		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE967 5032 bytes
font_01_sfnt_off0000fa97.bin
b5c4ac59e4f36d08dc0aef602a72b69a3138ba592d4f14b3ddfa831ece0575ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA97 11688 bytes

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