Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d83dbbfa7dd0532…

MALICIOUS

PDF

75.7 KB Created: 2021-03-11 00:39:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 3966ad60f54da69e7501efea07803961 SHA-1: 43118a32c867a371e1d5d994fedb6cd1bb7308e9 SHA-256: 9d83dbbfa7dd053208d945bf666048acbd2a84fe7d140da074275216e8aed015
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to 'https://bologen.ru/award?keyword=bible+in+basic+english+pdf', which is likely part of a phishing or social engineering scheme to trick users into downloading further malicious content. No scripts were extracted, but the presence of the malicious URI and the overall detection profile strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://bologen.ru/award?keyword=bible+in+basic+english+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380226/normal_601f432c03d78.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402262/normal_5fc710408c8e2.pdfIn PDF document text
    • http://rfs.team/the_space_between_us_full_movie_freeus39f.pdfIn PDF document text
    • http://nonusegotipijij.iblogger.org/jabulogomudav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448113/normal_6035bec7a522b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424036/normal_6014ff018e874.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418575/normal_60373494902fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415304/normal_60344274df648.pdfIn PDF document text
    • http://gakmancreatures.ru/technical_analysis_ideal_for_beginnersx1r4z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380382/normal_6010a8ed234d0.pdfIn PDF document text
    • https://cdn.sqhk.co/dukasavubu/fidDhdX/call_of_duty_warzone_pc_requirements.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476282/normal_601fffecb7ba1.pdfIn PDF document text
    • https://cdn.sqhk.co/lekibapufe/hi3icgd/scruffy_dog_rescue_adelaide.pdfIn PDF document text
    • http://ketousa.site/dajofopez00o.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/metubevozisul/18324539476.pdfIn PDF document text
    • http://goxozabakokivo.rf.gd/what_are_socially_disadvantaged_groups.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/only_the_paranoid_will_survive_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/bmw_m5_f10_workshop_manual.pdfIn PDF document text
    • http://mujigivufutufu.rf.gd/vsepr_shapes_worksheet_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/mefokafavuw.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/noladolivesobalaga.pdfIn PDF document text
    • http://kujugomanata.rf.gd/mifevisiwazixedijizuja.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_off0000e9b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B2 5512 bytes
SHA-256: 1b8c199b34f620a887baf03ec1bdb4a741273119cd26e42d73acceb086c2653a
font_01_sfnt_off0000fc70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC70 10776 bytes
SHA-256: 759fe6a061cb6e82399e57139b431e76076845ae53f2d3617dfb4e9a2550112f

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