Malicious PDF — malware analysis report

Static analysis result for SHA-256 472ef6790f699d9d…

MALICIOUS

PDF

77.9 KB Created: 2021-03-27 14:24:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4817edeadd5f94a73960c6201b3f372d SHA-1: 9d1f432d889518b466aa4a7a140c4d8e0dec1963 SHA-256: 472ef6790f699d9d5bd14f97d7d7ee1436dc0fe80544bfcc25fcbde00d9d28e6
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9985

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://xajibur.ru/strik?utm_term=diary+of+a+wimpy+kid+the+long+haul+trailer+2 PDF link annotation
    • http://nemosixumeki.mypressonline.com/xinefisazaruwukikujegase.pdfIn PDF document text
    • http://nosumiva.mywebcommunity.org/pearson_american_history_textbook.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/gasomisulafabojuriv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470524/normal_60519dba1be20.pdfIn PDF document text
    • http://wijetaz.mypressonline.com/harry_potter_book_series_illustrated.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414173/normal_60543d75308af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481064/normal_605de0896aead.pdfIn PDF document text
    • http://tufodudem.mypressonline.com/determine_quadratic_function_from_table_of_values.pdfIn PDF document text
    • http://dakekunagefasak.sportsontheweb.net/78129594024.pdfIn PDF document text
    • http://palubofapejuraw.mywebcommunity.org/36256251384.pdfIn PDF document text
    • http://nunopasatipimav.medianewsonline.com/dell_xps_8300_network_adapter_driver.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/wozoxub/sotapinigusezipazinofarur.pdfIn PDF document text
    • https://s3.amazonaws.com/wujixus/guide_taille_maillot_de_bain_arena.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/78111634048.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/chenab_river_flood_information.pdfIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/7653101109.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/dodonirorometomofunonar.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/arbovirus_adalah.pdfIn PDF document text
    • http://widusop.atwebpages.com/49167086297.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/tolerigabijusezalosezov.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/hallelujah_praise_ye_the_lord_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/91359134677.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/best_groundsheet_pegs.pdfIn PDF document text
    • https://s3.amazonaws.com/nisiwanolom/bluetooth_for_macbook_pro.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_off0000f007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF007 5664 bytes
SHA-256: a3a742c52f0df4502958b138949a1b9de51183cc41d04280bb535f05c78815ca
font_01_sfnt_off00010354.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10354 10920 bytes
SHA-256: a8962059be996a7fa675e8a9ca0bb15ae046965d4755d77027facc93399573af

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