Malicious PDF — malware analysis report

Static analysis result for SHA-256 c00eadc3d90540c5…

MALICIOUS

PDF

65.4 KB Created: 2020-11-10 10:53:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: fe43f8ce8d4f819e4b6404583b4748c2 SHA-1: 167373b8ca2b012101cab68fb2b0a94ff93a1f9e SHA-256: c00eadc3d90540c54b532b725bf3bf7538e74ad4954350eee00dd36036ea6d26
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, which is a common tactic for phishing and malware distribution. The embedded content, though heavily obfuscated, suggests a lure related to apartment rentals. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/wb?keyword=south%20ridge%20apartments%20greenville%20sc In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/bams_final_year_syllabus_download.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/medical_laboratory_technology_books_free.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/ginecologos_near_me_fort_worth_tx.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/active_listening_2_teacher_s_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/4200831065.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/jivikisosiletoxid.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/97947896797.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/back_talk_book_review.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/wheel_of_fortune_21st_anniversary.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/95197296973.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3089f966-e032-4139-9be4-eb67491df0a5/zolejutobilalotap.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/harmony_ultimate_one_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/bringers_of_light.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/muralismo_mexicano_caracteristicas.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/gategukomuvena.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_off0000c48d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC48D 5648 bytes
SHA-256: 649ec0433f4dbbcbf19c76d27b8e0250e120ea35c82484849879cfc4f19019ad
font_01_sfnt_off0000d79e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD79E 9564 bytes
SHA-256: 4c31dbb92e7c2a9023c51c974cc5e569cb7b9c158525148db5b9d6f3b0ed50ad

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