Malicious PDF — malware analysis report

Static analysis result for SHA-256 00c872bc90db74d7…

MALICIOUS

PDF

98.4 KB Created: 2021-02-18 06:45:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 9e8bee16881c35f8109959f95f13a001 SHA-1: 65e18f4d751629227009774371b62052df3350fe SHA-256: 00c872bc90db74d73d75d9e6952c0f0991555fde998f84d4364c26cffe2cea7f
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a URL that mimics a search engine result, likely intended to trick the user into clicking it. The PDF structure itself is also noted as having duplicate object bodies, which can sometimes be used to obfuscate malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wb?keyword=qu%C3%A9%20es%20el%20autor%20impl%C3%ADcito PDF link annotation
    • https://cdn.sqhk.co/vozeseseber/jjjicjg/85349561131.pdfIn PDF document text
    • https://cdn.sqhk.co/wevafofed/R8MjhpM/jopanuj.pdfIn PDF document text
    • http://biomaniks.website/directing_film_techniques_and_aesthey0k8a.pdfIn PDF document text
    • http://mazers.fun/shelter_cove_california_zillowmh4fs.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/fP0jg2E/movies_anywhere_vs_apple_tv.pdfIn PDF document text
    • http://mignonette.space/75342589325qojxx.pdfIn PDF document text
    • https://cdn.sqhk.co/luwagoma/gjibugq/lg_stackable_washer_and_dryer_dimensions.pdfIn PDF document text
    • http://rawenspant.online/369184677804a50t.pdfIn PDF document text
    • http://azules.ru/36655629677vo59k.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/wefemabeni/hookah_bar_remix_song_mr_jatt.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/99_chevy_blazer_wiring_schematic.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/65168106301.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/chutti_tv_tamil_movies.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/football_manager_2018_apk_ios.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/bandhan_bengali_movie_songs_video.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/95729268623.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/41109409227.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/connectives_worksheet_for_grade_7.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_off0001414d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1414D 5336 bytes
SHA-256: 9702b1fee85975046a280c9f9bc1c673fc488773a0e9b6ee9779d788cd63781e
font_01_sfnt_off00015313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15313 12244 bytes
SHA-256: a9daa4321b1ebab21239bc4d12935a33b706b23fe17b4bc70f3eb8e657b3246b

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