Malicious PDF — malware analysis report

Static analysis result for SHA-256 00ce5554a2efb88d…

MALICIOUS

PDF

165.6 KB Created: 2021-03-15 15:27:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 10ec4a8862d7d3df7a39e3efcafffca5 SHA-1: d1480401ec16edc08f0e2796eb12bfb29248d74e SHA-256: 00ce5554a2efb88dd556ba42a3bea9bd65889453c06b58d1361fbc8e09b6d45f
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that points to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The presence of an external URI and the overall detection suggest a phishing attempt or a distribution vector for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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://pelibifir.ru/strik?utm_term=espn+30+for+30+dennis+rodman+episode
    • https://cdn.sqhk.co/barugogip/bUijbib/car_crash_in_massachusetts_yesterday.pdf
    • http://it50save.info/rejipavesakenieln15.pdf
    • https://kumenesasewoton.weebly.com/uploads/1/3/4/7/134773405/8626939.pdf
    • http://useporte.xyz/one_thing_remains_kristian_stanfill_lyricssyzpz.pdf
    • https://dumetokewip.weebly.com/uploads/1/3/4/3/134394823/pogipujeje.pdf
    • https://cdn.sqhk.co/bagudivibi/A4tNSjf/define_the_term_academic_performance.pdf
    • https://cdn.sqhk.co/fasuzozo/J4yjfGl/bit_guardian_parental_control_app.pdf
    • http://maddot.space/wrong_synonym_formal28d8u.pdf
    • https://cdn.sqhk.co/kejaxedusuk/TsihIq6/love_stories_on_netflix.pdf
    • https://gobodukigibab.weebly.com/uploads/1/3/1/8/131856162/624085.pdf
    • http://helps-lnstagramcopyrights-about.com/badaxa62in1.pdf
    • https://cdn.sqhk.co/nenoserod/hhhddA7/non_exclusive_copyright_license_agreement_template.pdf
    • http://iranianvc.com/a_street_cat_named_bob_streaming_vf_gratuit14ljq.pdf
    • https://sefedajexoxoj.weebly.com/uploads/1/3/4/4/134479396/4359945.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bisapovepizaj/design_thinking_ibm_field_guide.pdf
    • https://s3.amazonaws.com/luworizesupox/acoustic_effects_pedal_zoom_a2.1u.pdf
    • https://uploads.strikinglycdn.com/files/e811f348-dedf-4016-8c51-c43af06cf846/gobug.pdf
    • https://s3.amazonaws.com/kudowo/how_many_kindle_users_are_there_in_india.pdf
    • https://uploads.strikinglycdn.com/files/6b0604b9-6b02-43cc-86a4-45f10085542d/71571872810.pdf
    • https://s3.amazonaws.com/wifiduxezo/medicare_separate_card_form.pdf
    • https://s3.amazonaws.com/gawabog/80534907219.pdf
    • https://s3.amazonaws.com/zebarufuridorur/louie_louie_fbi_report.pdf
    • https://s3.amazonaws.com/lopadivupudexa/95085184582.pdf
    • https://s3.amazonaws.com/debamijizozexo/udot_signalized_intersection_design_guidelines.pdf
    • https://s3.amazonaws.com/lakujusitejojet/dtv_air_channels_guide.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_off000249a2.bin
3573daf63643faef69293b6a11d8bc06a3c735855e3dc8e9418737cebceefdf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249A2 5416 bytes
font_01_sfnt_off00025bfb.bin
5f4bb5ea3416c0b6e2517b433aaef1e1b1a7b4b69af1cf771848149d80f986d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25BFB 13564 bytes

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