Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d195501c08db47e…

MALICIOUS

PDF

81.3 KB Created: 2021-03-22 17:42:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 0069abc960dbd2389617926fd4cb8bed SHA-1: 0ea267cc4357ec3e77d7e1e0c6f22cf908d0e3ba SHA-256: 5d195501c08db47e1e58d132221bfde32ae429492f8ee0db094b5f150c9a2232
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'fokemale.ru', which is likely a malicious domain used to host phishing content or distribute further malware. The document body, though heavily obfuscated, contains keywords related to 'boycott definition pdf', suggesting a lure to trick users into visiting the external URL.

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://fokemale.ru/award?keyword=boycott+d%25C3%25A9finition+pdf PDF link annotation
    • http://chambrely.xyz/paxotapavoluwojojakedhssed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385417/normal_600ae7d2e20f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486987/normal_6014855a31a3b.pdfIn PDF document text
    • http://magic-spring.com/7997493040437qxy.pdfIn PDF document text
    • https://cdn.sqhk.co/jedelamodafa/gfjfihP/kexetibebezalijimemoj.pdfIn PDF document text
    • http://vafutixon.22web.org/batching_plant_parts_name.pdfIn PDF document text
    • http://blekrossi.ru/zolazisomusopufatojefexskohm.pdfIn PDF document text
    • http://winoorama.website/3357714199799aew.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvurero/jp3LicO/kexodexenilajawafaguv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391605/normal_602da02e5f6c8.pdfIn PDF document text
    • https://cdn.sqhk.co/zebusukef/r9icEig/jennie_blackpink_fake_calls_prank_wallpapers.pdfIn PDF document text
    • https://cdn.sqhk.co/zezetemirag/iEiiigO/2525329708.pdfIn PDF document text
    • https://cdn.sqhk.co/tategupet/ifk7icg/nbc_sports_predictor_payout.pdfIn PDF document text
    • http://fruit-citrus.space/stickman_rope_hero_2_appa4i7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494432/normal_5fd161b5d841e.pdfIn PDF document text
    • http://jukojuguvaloj.iblogger.org/mupaji.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389361/normal_601b00ecf0711.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/jutenojamega/mata_rani_ke_video_song.pdfIn PDF document text
    • http://bejutamukedus.epizy.com/assistir_globo_reporter_ao_vivo_pela_internet.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/invisible_maniac_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/guwejafigigaxovalaroxewiv.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/fesoj.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/anime_tv_apk_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/48112240345.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/4203593135.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_off0000fd32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD32 4928 bytes
SHA-256: a553ba820182723ea2226566c97bb83e09763d5a18635761d204e2b74de9fdee
font_01_sfnt_off00010ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DDD 12900 bytes
SHA-256: b3cde97f90e48e8f5b0bab284311f9e21ea4937c682eaa11ebaa1ea284623284

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