Malicious PDF — malware analysis report

Static analysis result for SHA-256 d21893ef999d45a6…

MALICIOUS

PDF

78.5 KB Created: 2021-03-17 16:41:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 8c8032b5eb5c01d67f5ee2a4bf38adde SHA-1: 49fc73df472ed70f12b7c6819005fb42d66afb39 SHA-256: d21893ef999d45a64585226b2da7745c962f0d3c700a598ce7a71f95e932520f
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that directs users to a website offering game cheats, which is a common lure for phishing or malware distribution. ClamAV and ML classifiers strongly indicate maliciousness, and the presence of multiple external URLs further supports this. No scripts were extracted, but the primary attack vector appears to be directing users to a malicious external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

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://maypoin.ru/wix?keyword=gta+san+andreas+cheat+apkmonk PDF link annotation
    • http://zodimasar.mypressonline.com/plaquetas_bajas_en_el_embarazo.pdfIn PDF document text
    • http://fedogiki.22web.org/tevileguruxitativiboxex.pdfIn PDF document text
    • http://lomipojiposo.iblogger.org/58403444842.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411228/normal_602b32c03a019.pdfIn PDF document text
    • http://vasugixoba.22web.org/java_vm_windows_10_32_bit.pdfIn PDF document text
    • http://xufelaketodo.getenjoyment.net/musab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389080/normal_5ffd52de74bb7.pdfIn PDF document text
    • http://wawesoja.sportsontheweb.net/9362879394.pdfIn PDF document text
    • http://sekegixederixit.iblogger.org/25689485853.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501229/normal_60411ea91a679.pdfIn PDF document text
    • http://sutivebako.iblogger.org/rosabu.pdfIn PDF document text
    • http://zijixiteluwek.scienceontheweb.net/riduxedoxogojodufepowo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://benamow.myartsonline.com/bakiverarozawabadula.pdfIn PDF document text
    • http://vijanemafe.rf.gd/artemisia_absinthium_l.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/cove_guide_darkest_dungeon.pdfIn PDF document text
    • http://rivapuremamoge.epizy.com/87426559292.pdfIn PDF document text
    • https://s3.amazonaws.com/vavale/hackerrank_test_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/jatixenaloxesabagoxul.pdfIn PDF document text
    • http://deguwesipi.rf.gd/ninajadomege.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/vojajimogoneralapajuxubul.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/afficher_formule_dans_excel_2013.pdfIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/child_care_guidelines_ontario.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/pokikovomejabivejufidi.pdfIn PDF document text
    • http://nimoxorud.epizy.com/mukafixavoxogux.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/xetidenetufewu.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawexawinogad/1-_300_vanilla_engineering_guide.pdfIn PDF document text
    • http://juropap.rf.gd/losut.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_off0000ee0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE0D 5376 bytes
SHA-256: e970a998b4897b729e1d441dc007228437b412cd830850e499085c9b0de73fa3
font_01_sfnt_off0001002f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1002F 14688 bytes
SHA-256: e00d0d11f7bab8d203b839a1c9b074981e7305549451b0148fea4ca675cdf53a

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