Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0811c72fa1d7f05…

MALICIOUS

PDF

737.8 KB Created: 2021-03-31 09:42:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 80e7f4d51bcd22bf3049bfb2441134bc SHA-1: 83d25b244db284dbbeda6970c57b6d9979013f8b SHA-256: d0811c72fa1d7f05f3f4f8567f335331cd423c4f2b21f579634f0db2b68c26f0
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 0.6754

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://golowaki.ru/wix?keyword=johnny+weaver+inova PDF link annotation
    • https://cdn.sqhk.co/nejijilo/fhbnlub/used_square_body_truck_parts_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/kinuneba/8gchfYb/86659666646.pdfIn PDF document text
    • https://cdn.sqhk.co/dubutemaruxu/SZieF1C/cat_bird_game_wiki.pdfIn PDF document text
    • http://lnstagramcentre.net/27843929287khfhp.pdfIn PDF document text
    • http://fresh-ita.fun/23646236432bmozd.pdfIn PDF document text
    • https://cdn.sqhk.co/peluxisomex/MFIijhb/tor_browser_android_apkpure.pdfIn PDF document text
    • http://cosmicgig.com/free_sheet_music_printable_piano_popular_songsmtp4h.pdfIn PDF document text
    • https://cdn.sqhk.co/nosimasiv/hzGgggS/23143270897.pdfIn PDF document text
    • https://cdn.sqhk.co/pasivuzuke/HpDjjbM/51152590866.pdfIn PDF document text
    • https://cdn.sqhk.co/pujazojiwixi/gie74Y7/lilefadam.pdfIn PDF document text
    • http://loveworld.club/news_background_photoshop_templatebnidm.pdfIn PDF document text
    • https://cdn.sqhk.co/judixixelof/bigfgiw/field_hockey_world_cup_2022.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/faduxodiwo/change_communication_plan_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/beech_bonanza_a36_maintenance_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/tufexufanigugofonokajo.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/tepoxizezufapaxiboruxut.pdfIn PDF document text
    • https://s3.amazonaws.com/wutisigila/centos_8_beta_iso.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/mla_citation_guide_in_text.pdfIn PDF document text
    • https://78f121e6-5824-477f-9480-4bf23eba804c.filesusr.com/ugd/9564ad_4daec333440648fd9079ed9dcff42b0f.pdf?index=trueIn PDF document text
    • https://0a37a3d5-a0bf-4e77-8ff5-6127fd08aefa.filesusr.com/ugd/6046c9_a9454e6a9727400496389f5f34c98b62.pdf?index=trueIn PDF document text
    • https://21c505bb-01ca-4817-a549-4ed1ebba5040.filesusr.com/ugd/7d7105_6133cee462ca45cfaf19949bf7a90c25.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sivanira/7183635059.pdfIn PDF document text
    • https://a1d3e036-d9a1-4be1-9d2f-eedbb581cb22.filesusr.com/ugd/3ce946_f3e060f75087440aaf7d1fb478e0b7f9.pdf?index=trueIn PDF document text
    • https://1423d76f-a56f-4481-bf87-726e17039346.filesusr.com/ugd/14aee2_c520e69dabab40ef92455ef387b37d72.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/95748599250.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/what_if_you_roll_doubles_and_go_to_jail.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_off000b3899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3899 4808 bytes
SHA-256: 8bc4495a795f9a0b88fc0c08721b539717c26f2b661318e90351ae7bd6069c47
font_01_sfnt_off000b4913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4913 12440 bytes
SHA-256: 677c1ecfd2abf5c7f8cf521a772e7282d36a2cbcae3bfd7b8cd2c2cc6eb2b419

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