Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fe89165e5c04907…

MALICIOUS

PDF

78.7 KB Created: 2021-03-20 02:01:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 5f233c4d9b4c2459043b8d0f3521e860 SHA-1: 93ecc8764a095552dbe8a8eb86a9e9b6f631f87b SHA-256: 1fe89165e5c04907fa1a8bf6eaa9ff26df7630f470083f71d225bef1fa83a8dd
96 Risk Score

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://golowaki.ru/wix?keyword=contagion+video+worksheet+answers PDF link annotation
    • http://okrasote.info/formula_para_el_volumen_de_prisma_rectangular0fi7w.pdfIn PDF document text
    • http://misstourist.info/42664022310dn0wl.pdfIn PDF document text
    • https://cdn.sqhk.co/bimonabozo/hbNSOjc/switzerland_currency_to_eur.pdfIn PDF document text
    • http://grizhoff.ru/what_is_best_to_mix_with_apple_crown_royalitixf.pdfIn PDF document text
    • https://cdn.sqhk.co/fakineduxafe/dyza5qc/superstar_life_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zoribakim/cicgcgh/demo_derby_car_games.pdfIn PDF document text
    • http://fito4ka.xyz/51620548943hjk8f.pdfIn PDF document text
    • http://prequester.online/sportcraft_tx_4.9_treadmill_reviewsn1q7.pdfIn PDF document text
    • http://xidufefonudug.sportsontheweb.net/american_english_file_4_second_edition.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://5cbbff6b-7c47-4fbb-abda-9de5069fbc88.filesusr.com/ugd/1a89c8_fb77ffaa9e7e450db72b59ce91005334.pdf?index=trueIn PDF document text
    • http://wareguw.atwebpages.com/fudobip.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/how_to_recycle_shredded_documents.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/nozoj.pdfIn PDF document text
    • http://gixarewujedel.atwebpages.com/gujasejujatabelopuv.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/lymphedema_management_nice_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/mukuzifu.pdfIn PDF document text
    • https://ddd59a73-be73-4575-bd7b-2e5900175f8b.filesusr.com/ugd/5dc0ef_8b8257df36fa4148821aa6b76903cd25.pdf?index=trueIn PDF document text
    • https://12a3aa02-022d-4218-8efb-90aa4388683d.filesusr.com/ugd/6dfd9b_f6493feb3e9e4ab79170a1d9eb3ef60a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/boomerang_live_performance.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_off0000f11e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF11E 5176 bytes
SHA-256: 6dce0d3b00d4350fab2342ec64bc149bfc1ab66458a86c43add38e2ba9db511f
font_01_sfnt_off000102c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102C9 12532 bytes
SHA-256: 06dbb5b55b8d20889100318a9c4bb1419310cae596242ae09211ff858ae5fe6f

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