Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be5dbb2d7f02cab…

MALICIOUS

PDF

111.6 KB Created: 2021-03-14 00:33:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7f1b4ba8680dd29458862b2ccc27925 SHA-1: b50831273f0601aa0a29311c7cd5f0c77fc2d133 SHA-256: 5be5dbb2d7f02cab49b01513a62f6d32f3ff7dca16c8cebfe70939b3418ae47e
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with the primary one being 'https://lozipotod.ru/award?keyword=unipolarity+bipolarity+and+multipolarity+pdf', suggesting a lure related to an award or prize. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the presence of external URIs points to a download or redirection mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/award?keyword=unipolarity+bipolarity+and+multipolarity+pdf
    • https://cdn.sqhk.co/tanusulirava/gtOQgjz/chess_coach_pro_download.pdf
    • http://daravto18.ru/samsung_bluetooth_hm1350_manual3mhda.pdf
    • http://idealica-ordina.site/83189143854y072a.pdf
    • http://savadaqwe.space/100_years_war_duration9d7am.pdf
    • http://mastera-saydinga.ru/2356848666znq1f.pdf
    • http://mysteps.online/67060055605ijt4y.pdf
    • https://cdn.sqhk.co/sugutomipu/7sJZ3id/short_life_quotes_2020.pdf
    • http://storeyou.store/formato_de_informe_de_revision_por_la_direccionhik8t.pdf
    • https://tisawotaw.weebly.com/uploads/1/3/5/9/135993845/3610660.pdf
    • http://neyroskakalka.site/zilisojexiwumonikufizozyhl8r.pdf
    • http://sqrab.top/using_if_function_in_excelf6pa8.pdf
    • http://helplnstagram-confirm.com/89557224688hj0hs.pdf
    • https://jemijibiwozigep.weebly.com/uploads/1/3/4/8/134855884/wunagabativotuzo.pdf
    • https://dodarumobite.weebly.com/uploads/1/3/1/4/131437296/xuxafususewil_tejupeme_xopineniboto_pikategifo.pdf
    • https://wokiliga.weebly.com/uploads/1/3/0/8/130814475/nexugurer.pdf
    • http://tryne.xyz/89916947242hxeg5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tiruweditivunaw.myartsonline.com/tonight_west_side_story_piano.pdf
    • https://s3.amazonaws.com/zowejunef/beer_bottle_neck_labels_template.pdf
    • https://s3.amazonaws.com/vuxagixil/amsterdam_airport_layover_guide.pdf
    • https://s3.amazonaws.com/wudibirewuduto/vevezexovog.pdf
    • https://s3.amazonaws.com/sobaketemu/company_recommendation_letter_sample.pdf
    • http://saxarivoje.onlinewebshop.net/how_to_set_citizen_eco_drive_wr100.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_off00017bbc.bin
227a39425187edb39eb6ff435c75f82ed67e72cc375d32d46ee0bfe6e58b8c31
pdf-font-stream PDF embedded font (sfnt) at offset 0x17BBC 5240 bytes
font_01_sfnt_off00018d7f.bin
209f44ffa368e77c810176b70b01bf518c518cfd7cb70f262061c59a09cdc72e
pdf-font-stream PDF embedded font (sfnt) at offset 0x18D7F 10188 bytes