Malicious PDF — malware analysis report

Static analysis result for SHA-256 c84b4aea51e87132…

MALICIOUS

PDF

74.8 KB Created: 2021-03-28 06:29:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ff9629fabc544e9fcb0a070514b1eb33 SHA-1: 51b5418000801288ceb409bf3adc19dcf6c3ebc1 SHA-256: c84b4aea51e87132d16a994d7349ed9128faf87fa0688badbe303b46d8094f75
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xajibur.ru/strik?utm_term=how+to+change+sharp+atomic+clock+from+military+time PDF link annotation
    • http://jidiwaxilo.iblogger.org/para_que_sirve_la_semilla_de_moringa_y_como_tomarla.pdfIn PDF document text
    • http://sitebomobegux.sportsontheweb.net/adobe_premiere_pro_full_tutorial.pdfIn PDF document text
    • http://subfamjtii.site/how_to_know_if_a_shy_man_is_interested_in_youlx5n1.pdfIn PDF document text
    • https://suzixibaru.weebly.com/uploads/1/3/4/7/134709676/buvedenex.pdfIn PDF document text
    • http://tacfitproducts.com/lexudagilobubikejanepozatvbw1.pdfIn PDF document text
    • http://timedezalug.iblogger.org/57920257770.pdfIn PDF document text
    • http://lnstagramlivesupportcenter.com/4445265304812ig0.pdfIn PDF document text
    • http://agentsecure.space/mofemajegujumowalal0n2b.pdfIn PDF document text
    • http://pukujadud.getenjoyment.net/ibps_po_exam_book_free_download.pdfIn PDF document text
    • http://zadakob.22web.org/aprendizaje_social_autores.pdfIn PDF document text
    • http://lezofifividex.scienceontheweb.net/67566108881.pdfIn PDF document text
    • https://kutepuwabaluv.weebly.com/uploads/1/3/2/6/132681670/lowofewavi.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/tesapibebujep/bapewoxunozokediwuxe.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/67312030496.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/loreal_hair_sheet_mask_review.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/75030099356.pdfIn PDF document text
    • https://d5aacb37-8766-4234-9cc8-c2ec3b911aba.filesusr.com/ugd/1e723b_67f44a8e6c414abeb46e297fc955e3c4.pdf?index=trueIn PDF document text
    • https://5c839259-519f-4cee-a1a2-6639d654070b.filesusr.com/ugd/140efa_6e312a2c64b3426381475125b331985f.pdf?index=trueIn PDF document text
    • https://efed9c07-4553-4484-a419-1b844d271aeb.filesusr.com/ugd/6f475a_c80a07ca2d6c46c58c930a0735c0f697.pdf?index=trueIn PDF document text
    • http://zisukuvi.atwebpages.com/namugubusufelagowad.pdfIn PDF document text
    • https://e9b66cc5-9289-431c-8f17-6739e1cd2d88.filesusr.com/ugd/c8f33b_5996da7731314599a0878b95b6373ae4.pdf?index=trueIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e476.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE476 5648 bytes
SHA-256: 87eba72ed656445b8834b4ee0cb3d49727014017c0b79a647e94360ac92af6d6
font_01_sfnt_off0000f7a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7A2 11228 bytes
SHA-256: e9ee31190c9f0f881c5a5bfc029cc4455e21d260357360df173ba817d4fbd28e

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