Malicious PDF — malware analysis report

Static analysis result for SHA-256 e13679c3265dc46c…

MALICIOUS

PDF

81.8 KB Created: 2021-03-15 08:16:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: b76cc87972fd6f03b252a10de35a8581 SHA-1: 7b1b09cfe7afc8fc57eb92d39fc1449dc6794098 SHA-256: e13679c3265dc46c1ae9096f061ced54c18bcb37e7e37214b98dd707ee7b2cab
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://zajinet.ru/strik?utm_term=what+is+it+called+when+a+writer+uses+descriptive+language+to+appeal+to+a+reader%25E2%2580%2599s+five+senses PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392860/normal_6035bb1e9b0f1.pdfIn PDF document text
    • http://about-igsupport.com/lc_tri_guitar_sheetkxici.pdfIn PDF document text
    • http://sodalabs.club/rca_50lb45rq_wont_turn_on8qq8t.pdfIn PDF document text
    • http://tihefers.online/dopadovifukeraduma4en93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407060/normal_60111968c373f.pdfIn PDF document text
    • http://memowelubi.mygamesonline.org/12668363341.pdfIn PDF document text
    • http://kafalukuwemi.mygamesonline.org/audio_driver_free_download_for_windows_7_32_bit.pdfIn PDF document text
    • http://lesilona.iblogger.org/will_a_christmas_carol_with_george_c_scott_be_on_tv_this_year.pdfIn PDF document text
    • http://maxirem.mygamesonline.org/what_size_is_a_mini_shake_at_sonic.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403540/normal_5fcd2c3cd44dd.pdfIn PDF document text
    • http://trycabinets.xyz/best_english_speaking_app_onlineqbb60.pdfIn PDF document text
    • http://mereritijazos.scienceontheweb.net/nonutitelokoparudebik.pdfIn PDF document text
    • http://all-system7.xyz/how_to_install_lexmark_e120_printer_without_cdjdpm2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xumizaxojumiko.epizy.com/language_handbook_7_clauses_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/whatsapp_gb_2019_android.pdfIn PDF document text
    • http://pinezininefos.epizy.com/forge_of_empires_guide_city_planner.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67a33825-37e6-46bb-bb6b-a62a9e6591d7/dekojigatuvoxerew.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/rowenta_master_valet_garment_steamer_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/why_is_ancient_greek_theatre_important.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/chain_chronicle_taiwan_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ddc924c-de2f-43f3-bea2-cf3f11cac629/tokyo_ghoul_kaneki_vs_jason_chapter.pdfIn PDF document text
    • http://dotixoxikal.rf.gd/70263940851.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/madidaserulipozuzilaros.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_off0000fd79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD79 5632 bytes
SHA-256: ff1df0ee2db749b0ae9774e4c7b3799e8ff80bb46f1f9fb7d9d39147582a7587
font_01_sfnt_off000110c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110C8 10872 bytes
SHA-256: cb8e69738b7cec92a585034198af090fb3c26464430b8242c38102f31bc8b810

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