Malicious PDF — malware analysis report

Static analysis result for SHA-256 d30671045dc705aa…

MALICIOUS

PDF

281.9 KB Created: 2021-02-14 21:53:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5cbe50eb7c53dcd9c834cc2da523f808 SHA-1: 8bbd686cfe72e4c4b7c27d38696e0a2ebaec4f32 SHA-256: d30671045dc705aae75a6261c321003b78d28e4677106619f2c436897f2d55ff
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 0.9953

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://seumenha.ru/123?utm_term=union+county+yellow+jackets+basketball PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4378857/normal_5fdfaa6daa317.pdfIn PDF document text
    • http://dektesheff.xyz/gibajeji6060d.pdfIn PDF document text
    • http://jilet1.club/medieval_engineers_flaxgx784.pdfIn PDF document text
    • http://bedusopuzal.22web.org/armoury_crate_asus.pdfIn PDF document text
    • http://formverifiedbadge.com/catering_assistant_job_interview_questions_and_answersdczcf.pdfIn PDF document text
    • http://lastasked.com/god_wars_dungeon_1_guidezfxip.pdfIn PDF document text
    • http://firejifanop.iblogger.org/78285082227.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tesitanine.rf.gd/free_printable_christmas_party_flyer_templates_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/kopigajujumij.pdfIn PDF document text
    • http://zidumive.rf.gd/annexure_cover_sheet.pdfIn PDF document text
    • http://lezujepadu.rf.gd/anari_1993_songs_320kbps.pdfIn PDF document text
    • http://mokimonanogi.rf.gd/linear_inequalities_in_two_variable_worksheet.pdfIn PDF document text
    • http://sofijorube.rf.gd/bl_theraja_electrical_technology_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/guwobilenuvaxegilunabu.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/xafukexukefidapenabekos.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/77517808244.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/sides_edges_faces_and_vertices_worksheets.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_off000421d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x421D4 5160 bytes
SHA-256: ef40e81e5c217d06b89f590cff6e88beb734a42220a970a98a3e8b74290b462d
font_01_sfnt_off00043398.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43398 11200 bytes
SHA-256: c6eefd31703625bc97bdbd9c820aa2005397c6299bd9705776cbc20394c64fa7

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