Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb4ab1e47250cf56…

MALICIOUS

PDF

80.4 KB Created: 2021-03-27 11:46:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fffe7493cf18182ff0f7dca29434ab7 SHA-1: 2f8d560b0ecc9f19de22bb79e3327701df9a3628 SHA-256: bb4ab1e47250cf56da43f1a31c9520ef5cec22dd9e248898b49abf4109280da1
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that mimics a search query, likely intended to trick the user into visiting a malicious site. ClamAV detection and ML classification strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially malicious content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://seumenha.ru/wix?keyword=dirge+bat+mtg
    • http://draiwenstore.online/wopidoduwodomewi5k3px.pdf
    • http://ilkertr.shop/pinagesebezewekajalugixubh6tfw.pdf
    • http://pasendapp.online/livusumulubenunomawvwdtw.pdf
    • http://fuvepupur.22web.org/cyber_security_interview_questions_and_answers.pdf
    • http://bugivaf.22web.org/80156385023.pdf
    • http://mujododaziwato.scienceontheweb.net/mirivupawumeguboniwoxef.pdf
    • http://talajifit.mywebcommunity.org/90585424558.pdf
    • http://vomimaforotagi.mywebcommunity.org/comparative_superlative_adjectives_list_from_a_to_z.pdf
    • http://jefevivavifax.scienceontheweb.net/zofokososofolujitu.pdf
    • http://ductsunlimitedins.com/free_light_presets_downloadgv20r.pdf
    • http://tavegumata.sportsontheweb.net/botulism_in_animals.pdf
    • http://jilududegurim.22web.org/20605556720.pdf
    • http://instapriz24.site/what_is_the_ideal_gas_constant_rkss70.pdf
    • http://gakukuketisalum.scienceontheweb.net/olentangy_berlin_high_school_football_schedule_2020.pdf
    • http://sefegusekepuxa.mypressonline.com/bergey_s_manual_of_determinative_bacteriology_9th_edition.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://87da31d5-d184-45e7-a456-0ad082c8bd65.filesusr.com/ugd/55e94a_1fa14f637bbc4ffd94a3e79dc2de9288.pdf?index=true
    • http://kavezusi.onlinewebshop.net/jureberudotumofawonufit.pdf
    • http://juzavinozil.epizy.com/electro_pneumatic_actuator.pdf
    • http://laxufazekez.atwebpages.com/presto_pressure_cooker_409a.pdf
    • http://kaxixujupafa.rf.gd/lego_harry_potter_sets_2020_release_date.pdf
    • https://uploads.strikinglycdn.com/files/7bf22158-bc15-4f67-a0be-fbe576f0d919/92210259300.pdf
    • https://uploads.strikinglycdn.com/files/60282928-d75d-4625-868c-307ef8d91b2f/whirlpool_appliance_repair_seattle.pdf
    • https://bd7a0a6f-bbfd-49cc-ba41-c3f2778102d9.filesusr.com/ugd/9ea91e_546c86c971dd41789aff071161384aa7.pdf?index=true
    • https://9e2b3e3a-6a02-4d3b-8ba9-5acc01041672.filesusr.com/ugd/66c878_3711c73c330d412c92ab02c21da1db3c.pdf?index=true
    • https://e49cd12a-7e53-4a25-9f98-ae37b5ff2e44.filesusr.com/ugd/35dc59_2578d85d0d9544f79175238d413b0ae2.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e88b.bin
0736fac2b056137a06972a130bbac5eab709adcdc80e50c7281c8f83bd5d3f18		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE88B 4504 bytes
font_01_sfnt_off0000f7db.bin
228e94786ecbf89f756b4cf4a3f08329281d600273d8a75f5ed18e8368bde76b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7DB 14800 bytes
font_02_sfnt_off0001263d.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1263D 4324 bytes

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