Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d2ee6ae47b3b9dc…

MALICIOUS

PDF

68.4 KB Created: 2020-12-16 03:58:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 3eb6a94a6825b9e43a83abdef98d76a1 SHA-1: b44d5ca2f141010924c5fdaff31528294c8b13b7 SHA-256: 9d2ee6ae47b3b9dc708ec8393aa0e20d611073ea6dc64c11d42bf538423eaac8
124 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. It uses a callback-phone (TOAD) lure. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://trafftec.ru/123?utm_term=kodi+app+for+android+apk PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4460688/normal_5fc940e24d7e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369901/normal_5fb445c48104d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402940/normal_5f928c7200203.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cd6b84d-77be-42a3-aaa4-e33a2fe4c7b5/80563014672.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/pirukukamupegi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc14f89d26ff1194f767fe5/t/5fccf0869aa2de0c6494a143/1607266439888/word_search_online_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7cae5eb4-4405-4932-8744-add89c7bec28/science_fusion_matter_and_energy_book_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58dd71f0-d543-4273-a5ae-84568a0ada14/boku_no_hero_academia_movie_english_dub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f95bee09-66a0-468a-a62e-e540aa26601e/75423029615.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94734f9e-3fcb-42a9-8f64-dbcabfc437cd/27734349797.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27b9c834-f9e5-458b-bc4f-1d47b487a5b7/jealous_by_labrinth_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec487ae8-0ddc-4c2a-8b03-185448a3bd36/en_que_consistio_la_conquista_espiritual_y_material_de_la_nueva_espaa.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2F6 2960 bytes
SHA-256: 3c6502e04658d985b37ed967139d4b1bb7136c1c8ff06868e6b64c17630b7d50
font_01_sfnt_off0000cd79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD79 4860 bytes
SHA-256: 86494000809ced9087dba36a51163c59958199e0a9718cd2fd22d0068865dbb2
font_02_sfnt_off0000de17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE17 11440 bytes
SHA-256: 9fb91b06628f22a8ab9b9f9c72a7411687ab9723c1bc032a9acf6d9c7bf33e49

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