Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f8029054caec7e1…

MALICIOUS

PDF

67.8 KB Created: 2021-03-26 07:52:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 3cbb2f9e758e8ef679289a9803d5a712 SHA-1: 136e6ca69ec6d91c78def30c25fc402bd18498d3 SHA-256: 8f8029054caec7e176666b59e68c77e6c8a6602b080ae7af72d6623e3908ba9f
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://resalured.ru/award?keyword=broken+vow+piano+sheet+pdf PDF link annotation
    • http://nijalatol.mypressonline.com/kixuzafetog.pdfIn PDF document text
    • https://cdn.sqhk.co/neratimo/gjigNMD/75234281466.pdfIn PDF document text
    • https://cdn.sqhk.co/raxulaxesob/ZIijthe/childrens_rugs_walmart_canada.pdfIn PDF document text
    • http://veruvipavopa.getenjoyment.net/what_we_talk_about_when_we_talk_about_love_espaol.pdfIn PDF document text
    • http://amandeepsadyora.com/how_to_blend_colored_pencils_for_beginnersbnobs.pdfIn PDF document text
    • http://microdigitalmeter.xyz/que_come_el_oso_hormiguero_gigante9rctw.pdfIn PDF document text
    • https://cdn.sqhk.co/zakikola/RQGbrG2/storyline_online_clark_the_shark.pdfIn PDF document text
    • http://jarizodej.22web.org/warlock_vanilla_guide_leveling.pdfIn PDF document text
    • http://circus.market/nebuviwutedukitexo1qfyt.pdfIn PDF document text
    • http://driveformclanemilwaukee.com/large_electroluminescent_sheete91sh.pdfIn PDF document text
    • http://xekokikimelaf.iblogger.org/avery_5160.pdfIn PDF document text
    • https://cdn.sqhk.co/mikevoponage/Z2IhhF5/domino_s_hand_tossed_vs_brooklyn_style.pdfIn PDF document text
    • http://hookup671.site/toguzuzamaxijusuzigamu25aab.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/fibesezati/aararum_kaanathe_aarodum_mindathe_song.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/actual_cannibal_shia_labeouf_character_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/web_development_course_outline.pdfIn PDF document text
    • https://s3.amazonaws.com/natewared/81522576573.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/94319794430.pdfIn PDF document text
    • https://s3.amazonaws.com/dapekufoxiraku/the_bible_for_dummies_free.pdfIn PDF document text
    • http://kidopufopilute.epizy.com/6669539885.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_off0000cabb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCABB 5364 bytes
SHA-256: 5a42ed738bb948363ee357011c905a24ef8cbfbc3fc6dd01fbef02019db268b8
font_01_sfnt_off0000dd0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD0D 11008 bytes
SHA-256: f2a07e89040ed2fa0da3e10d9f9134d073e2f7d7b0fadc58806b3df22d316f2e

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