Malicious PDF — malware analysis report

Static analysis result for SHA-256 adccc07060632ebe…

MALICIOUS

PDF

89.3 KB Created: 2021-03-21 21:38:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02cf4da109f48911ceb9e49d4ac19b8d SHA-1: d85c7addebb73db389a6d49d88ff1176d2b70eeb SHA-256: adccc07060632ebe03ad5f0dabaa9e6f1d5dcb768730a8f7efe13bcbfd8927c9
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, one of which, 'https://dafemum.ru/wix?keyword=golden+age+of+rome+essay', is presented as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dafemum.ru/wix?keyword=golden+age+of+rome+essay
    • http://itash.space/bsc4success_monthly_mcqknxtm.pdf
    • https://static.s123-cdn-static.com/uploads/4368997/normal_5fef03d63f5f6.pdf
    • http://usersdeviceprotectionservice.site/crs_reporting_deadlines_canadaofm34.pdf
    • https://cdn-cms.f-static.net/uploads/4481828/normal_601c01d85e329.pdf
    • http://rezltml.xyz/wusujagukaxefobadn5y3z.pdf
    • https://static.s123-cdn-static.com/uploads/4402486/normal_5fcf93bf732d2.pdf
    • https://static.s123-cdn-static.com/uploads/4488810/normal_5fe43cff9bd63.pdf
    • https://cdn-cms.f-static.net/uploads/4389821/normal_6054e611f037d.pdf
    • https://cdn-cms.f-static.net/uploads/4445129/normal_60289d5f159eb.pdf
    • https://static.s123-cdn-static.com/uploads/4469836/normal_6001eaa936b47.pdf
    • https://cdn-cms.f-static.net/uploads/4408996/normal_600d88e1085cc.pdf
    • http://youtube-subscribes.com/psychology_the_science_of_mind_and_behaviour_4en9a0z.pdf
    • http://tarubexuwixam.iblogger.org/fiwufagugupowevaxoke.pdf
    • http://kengoru.space/alapana_christian_songsirat5.pdf
    • http://tinipen.medianewsonline.com/sap_blueprint_document.pdf
    • https://cdn-cms.f-static.net/uploads/4368492/normal_6044699653229.pdf
    • https://static.s123-cdn-static.com/uploads/4387235/normal_5ffbbd187eb6f.pdf
    • https://cdn-cms.f-static.net/uploads/4459034/normal_600b1e4b0c67b.pdf
    • https://static.s123-cdn-static.com/uploads/4471723/normal_60095606d8cdc.pdf
    • https://cdn-cms.f-static.net/uploads/4490950/normal_6024212a7dcbd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nigugolesaxof.rf.gd/weekly_performance_review_template_excel.pdf
    • http://lotawovuvowuk.rf.gd/bretonnia_8th_edition_army_book.pdf
    • http://nufulavidibime.myartsonline.com/american_english_file_second_edition_free.pdf
    • http://vujesidewu.rf.gd/24759090092.pdf
    • http://xovanixavujanu.epizy.com/nox_android_emulator_reviews.pdf
    • http://rojanesifilagu.myartsonline.com/julavipo.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_off00011cec.bin
588b7eeff71e63e5f540a31ffb6b1361be2c40ab3e848f8235ad1865ad3b8b51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CEC 5360 bytes
font_01_sfnt_off00012f21.bin
9b1f3c9db45d03e84c792f3a0998c9e97ab5a736769c93a5174aea8ee6ccf1e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12F21 12364 bytes

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