Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e346ce0ac71bc60…

MALICIOUS

PDF

76.2 KB Created: 2021-02-01 04:22:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 252e975b142da6dfadbb82614d901819 SHA-1: 27354f2b971e0d1decdf58b0bc07dc5ddced218e SHA-256: 1e346ce0ac71bc60a3271b51636f78aa2860fc94e785986915b27eaf23757b0a
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample is a PDF document flagged as malicious by ML classifiers and ClamAV, with heuristics indicating it uses an invoice lure. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site or download a payload. No scripts were extracted, but the presence of embedded URLs and the invoice lure suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://leonvi.ru/123?utm_term=checking+and+savings+account+worksheet PDF link annotation
    • https://cdn.sqhk.co/baxalelizop/3GyigfF/balalegid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379959/normal_5fee42d692a43.pdfIn PDF document text
    • http://sasavojaraw.iblogger.org/64724555239.pdfIn PDF document text
    • http://optalpha.com/master_gardener_manualxknpe.pdfIn PDF document text
    • https://cdn.sqhk.co/zatugudaxaji/bqu7Hia/death_shooter_contract_killer_mod_apk_android_1.pdfIn PDF document text
    • http://majelogajizivo.iblogger.org/gozef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460060/normal_5ffe98be17259.pdfIn PDF document text
    • http://agent-spv.space/adobe_lightroom_tutorialyyrso.pdfIn PDF document text
    • http://lianhua.life/2023003034phzh9.pdfIn PDF document text
    • https://cdn.sqhk.co/japedovak/ghSqhjj/stalker_innawoods_challenge.pdfIn PDF document text
    • https://cdn.sqhk.co/legikowe/Bq7ieQQ/almighty_multiplayer_god_idle_clicker_game.pdfIn PDF document text
    • http://gudijogorirew.iblogger.org/troubleshoot_creative_cloud_and_install_issues.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/fefurorobumi/benami_transaction_prohibition_act_1988.pdfIn PDF document text
    • https://s3.amazonaws.com/pajeriramal/89310090438.pdfIn PDF document text
    • http://xurorovesi.epizy.com/texas_defensive_driving_online_test_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/king_arthur_story.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/fawonoxisozeniwalipadarak.pdfIn PDF document text
    • http://donolipapaxe.rf.gd/lamofamipopugagerejakexe.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/nccn_guidelines_plasmablastic_lymphoma.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/cirrhose_alcoolique.pdfIn PDF document text
    • https://s3.amazonaws.com/donukadizolin/10127286547.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/bootstrap_blog_templates_free.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_off0000ec73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC73 5288 bytes
SHA-256: 709bef623f3eb23cbed3df4a2e7b5ec2fcacc27d825be8452c2bbd97417fe09f
font_01_sfnt_off0000fe7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE7B 10868 bytes
SHA-256: fa821e0348159dbe692d4117add7dfb835c9167cc29e47d70bef8b2a80bcb828

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