Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6f08cfbf083440c…

MALICIOUS

PDF

101.5 KB Created: 2021-04-15 23:11:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cede1b382684b9d6350e0c45554b9b91 SHA-1: c5b7b487952fcc356511c86789ed00d6635088f3 SHA-256: f6f08cfbf083440c107273a8dba8603ab143426ce7ffc5933e34ca356a14c493
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 0.9998

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://pelibifir.ru/strik?utm_term=how+do+you+do+an+observation+on+a+child PDF link annotation
    • http://zitukuwekoba.sportsontheweb.net/dibopefu.pdfIn PDF document text
    • https://cdn.sqhk.co/lojeliju/hb5hayG/ralph_breaks_the_internet_pancake_milkshake_fun_set.pdfIn PDF document text
    • http://lokubakodo.getenjoyment.net/18646319840.pdfIn PDF document text
    • http://pefiworawodud.mypressonline.com/consumer_buying_behavior_report.pdfIn PDF document text
    • http://bakavorun.getenjoyment.net/bookmark_android.pdfIn PDF document text
    • https://cdn.sqhk.co/fosuzonarefi/ihehegd/gabelobonefosukapi.pdfIn PDF document text
    • http://sadogiropi.mypressonline.com/simple_passover_haggadah.pdfIn PDF document text
    • https://cdn.sqhk.co/pesamelez/hdHhcji/photo_of_yellow_cab_pizza_singapore.pdfIn PDF document text
    • http://astropsychology.site/us_history_chapter_15_quiz2x5ou.pdfIn PDF document text
    • http://podarokinsta.site/99300189837luz30.pdfIn PDF document text
    • http://kekewawoxugar.sportsontheweb.net/700442590.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/jemazejodep/89953922213.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/kapazuzavu.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/37112260485.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/99274344405.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/nepevonefotiko.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/pogaga.pdfIn PDF document text
    • http://kimoviranonaf.onlinewebshop.net/force_callout_lspdfr_0._4.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/authentication_problem_wifi_android_fix.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/20648539865.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013aa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AA7 5380 bytes
SHA-256: cf848ab70234c1a7c6905c522ec4707de7cc9c104f80b1cec2f18890577a6cbe
font_01_sfnt_off00014d02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D02 11088 bytes
SHA-256: 9e2d090aa0a1b2d0a384643133a3865092d27ce739b5f6a2dc34dc48ed8638cf
font_02_sfnt_off000172e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x172E8 16312 bytes
SHA-256: 028dbaa76d48ae99b02248bacea50134e27ed131f5dd39e25ac401de8961e19b

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