Malicious PDF — malware analysis report

Static analysis result for SHA-256 630f05c8a566bc97…

MALICIOUS

PDF

103.5 KB Created: 2021-05-12 15:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 674ca8065615955c8506c9991c7a73dc SHA-1: 59614994c58a7e2c144b3aae191e356b6ccdfdea SHA-256: 630f05c8a566bc97cb63fced1421bdd8b8c8cec36c7a9c29d05d8e89cca8a338
104 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 an urgency-based lure. 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 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/strik?utm_term=coast+guard+female+weight+standards PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4456391/normal_60489cc1a7cf5.pdfIn PDF document text
    • http://kesuvajeb.scienceontheweb.net/understanding_public_policy_paul_cairney.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371023/normal_606a97f785cfc.pdfIn PDF document text
    • https://cdn.sqhk.co/falugojafat/g7Ohahi/write_piano_notes_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377656/normal_603492379b897.pdfIn PDF document text
    • http://jonebukusopovet.mygamesonline.org/bioremediation_download.pdfIn PDF document text
    • http://lanizimugigil.getenjoyment.net/minomozefokajiti.pdfIn PDF document text
    • http://ziwigosopijulal.mygamesonline.org/the_monkeys_paw_theme_quotes.pdfIn PDF document text
    • https://cdn.sqhk.co/jotapepikota/hg4ejcG/vr_real_feel_alien_blasters_app.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365621/normal_5fe51cfbe5d30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372104/normal_5ff4a5ef00436.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/zunaporam/wedividizadinodowanow.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/comprehension_passage_for_grade_5_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5776eb71-8fb3-4bf8-8b96-5c28fb5cddc5/how_to_count_calories_indian_food.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/28648692658.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f35ce2d5-e2c4-4c69-ae8a-d53108a534ff/little_house_on_the_prairie_season_3_episode_10_full_episode.pdfIn PDF document text
    • https://s3.amazonaws.com/tupofelasujewas/fisokonupojunetikeror.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/what_decor_is_trending_for_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/us_intervention_in_latin_america_documentary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd88751f-b498-4b46-b269-e3f3b1136205/answer_key_for_ap_english_literature_and_composition_practice_exam_section_1.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/79677843851.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/arteri_adalah.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46d34c12-3134-481e-8541-36b25bebcf86/19975486160.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_off0001583e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1583E 5316 bytes
SHA-256: 1172dcfd3e40993b1fc6f536f540c3d0af4f24242e066c397b2cdff2619a5cf2
font_01_sfnt_off00016a37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16A37 11352 bytes
SHA-256: db044dcc6fba40ce7a5ef34659d82c4915ff51f5350e763036ee4adadfbbb28f

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