Malicious PDF — malware analysis report

Static analysis result for SHA-256 8818f5a738a4db4f…

MALICIOUS

PDF

105.8 KB Created: 2021-03-17 17:50:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: de1c72e3cad61723382c1a0a16b77d65 SHA-1: 3a798d6c42120a007f81a26d6a7cb49bd60f55bc SHA-256: 8818f5a738a4db4f66eb16603495467fe53cff189ed1596bf4c393353fb39b6c
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 0.9972

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://fokemale.ru/wix?keyword=rhubarb+pie+song+prairie+home+companion PDF link annotation
    • https://cdn.sqhk.co/pidagasew/hggf0gi/luworekok.pdfIn PDF document text
    • https://cdn.sqhk.co/kuniremolu/rjijeks/dostoevsky_notes_from_underground_review.pdfIn PDF document text
    • https://cdn.sqhk.co/tamupoto/cWKfzjj/vevig.pdfIn PDF document text
    • http://jabakibiv.iblogger.org/2018_toyota_camry_xse_v6_black_top_and_red_interior.pdfIn PDF document text
    • http://difirujasulixe.iblogger.org/nidilubuka.pdfIn PDF document text
    • http://sukuzarimeke.22web.org/vofawokowak.pdfIn PDF document text
    • https://cdn.sqhk.co/rotuzuwibi/jjjhbhf/elm327_bluetooth_obd2_diagnostic_tool.pdfIn PDF document text
    • https://cdn.sqhk.co/jopubelo/kx3RjcY/japanese_used_auto_parts_in_japan.pdfIn PDF document text
    • https://cdn.sqhk.co/rasetiwulipu/gijgjif/arvingerne_the_legacy_2014.pdfIn PDF document text
    • https://cdn.sqhk.co/pazaxefuma/ha7vFRD/jump_on_it_dance_moves_step_by_step.pdfIn PDF document text
    • https://cdn.sqhk.co/firokizita/gihggf1/jadalid.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/dibedamoka/5150135389.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/wulosebedar.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/avatar_games_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/family_tree_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98c43624-cf9c-4f10-b0e9-b2ce1cfe6557/84395921973.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82720d9e-4438-4221-aa35-801274990e79/95018920492.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/migulatixunojibex.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/68011687503.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/mixat.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/21511231877.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/colonialism_in_heart_of_darkness_slideshare.pdfIn PDF document text
    • http://mikusadetov.rf.gd/150_pcf_to_kn_m3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f1088dc-7d1a-4c28-b08e-b143538d8927/samsung_8000_series_refresh_rate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/204b0b77-2bcb-46e5-9752-e6dd2e3df68a/vogonowudelo.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/international_business_the_challenges_of_globalization_global_edition.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016005.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16005 5460 bytes
SHA-256: 4eabf7aed559537cd88b535c0da34dfe986abdd9f29788ec482d3bd549899ef8
font_01_sfnt_off00017271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17271 11532 bytes
SHA-256: 3c4ad301e6fa76e3ae2fbb1387c7cd8381953c075b66edbe6ad32847c8a75474

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