Malicious PDF — malware analysis report

Static analysis result for SHA-256 b59dc254b40dd5e2…

MALICIOUS

PDF

69.9 KB Created: 2020-11-12 20:29:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: be63f276cbbe37402af3598b5272e421 SHA-1: 2f023a3f89347bf8bf92c886e92625af8399b04a SHA-256: b59dc254b40dd5e25210aa1193b79938daade966436900528aa60bbb55509a1b
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 0.9998

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://traffset.ru/123?utm_term=289+windham+road+windham PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/pusolefosex/wumelulabiwitumokako.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/vivewiredagunasaxo.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/bitobitufuxunuwisuboguli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1f0e2f4-de21-4f83-8d5b-18ddc8f52693/homeschool_performing_arts_michigan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c841290-37b3-4c60-bedd-8f24fba3f070/right_triangle_trig_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/a10_games_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/radius_of_convergence_taylor_series_ln_x.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/kozaxivexijeritawip.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/79293761001.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/watch_forged_in_fire_beat_the_judges_episode_1.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/fatukurazem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2c388ca-70ad-42aa-a00a-d7cf6bd08a9e/sovemunaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9613c8e-342b-4ac4-b48e-55f459d4f12b/lepasobalabujif.pdfIn PDF document text
    • https://s3.amazonaws.com/magapeguwabe/behindertenausweis_antrag_berlin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef19a143-cc11-43c6-a6e3-a3138e1d2ef6/tidusobirexudoruzunilepu.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_off0000c754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC754 4924 bytes
SHA-256: 121e85e399b711029e1425cc12012ce6f49c8e4e7298242c64a81e4bcac19488
font_01_sfnt_off0000d7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7C9 10992 bytes
SHA-256: 5c3e58e29c8b9309bbcaf980dd11e255575d344f174f10cacfa1a2721f8f7b11
font_02_sfnt_off0000fd10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD10 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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