Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b61d2c930edc795…

MALICIOUS

PDF

81.6 KB Created: 2021-03-09 05:17:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 50428c1e011c2a16a81d049cafd3653b SHA-1: 15b8e767af685fdd98eb6806a9b1767a242fd9bc SHA-256: 4b61d2c930edc795dc435892796ef8b0e28028b3f2b7dc34ba2ab1443aa3b7f5
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 0.9967

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://mezovuduw.ru/123?utm_term=fsd+functional+specification+document+template PDF link annotation
    • http://clientbluebadge.com/geloxibisatonimasigi6r8j.pdfIn PDF document text
    • http://siwupojotuj.getenjoyment.net/81143606099.pdfIn PDF document text
    • http://zavarivaemvmeste.ru/rujotezovajajonvqosz.pdfIn PDF document text
    • http://bestita.space/wakowutikudipanakenardc14.pdfIn PDF document text
    • http://goshop32.site/41894936wwme2.pdfIn PDF document text
    • http://dalnoboyi.xyz/malekusotuzavim8lay.pdfIn PDF document text
    • http://revilokepudidu.mygamesonline.org/duxutapizagasif.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/how_to_connect_ipega_to_iphone_7.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/jazamerijekufol/alpha_omega_elite_car_seat_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ada79870-920f-43c2-8ea2-74b4a3ce29b8/frost_nyc_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/78627071802.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ca8dd9c-f152-4464-a28d-f79e50a3adc0/what_sauce_is_on_burger_king_breakfast_burrito.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/full_album_bts_ly_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/parent_brag_sheet_format.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/maven_emma_code_coverage_report.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/etre_et_avoir_worksheet_answers.pdfIn PDF document text
    • http://geforagegi.atwebpages.com/lajoru.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/74357420522.pdfIn PDF document text
    • https://s3.amazonaws.com/kosamupim/cracker_barrel_nutrition.pdfIn PDF document text
    • https://s3.amazonaws.com/tamovagag/92208085401.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/pro_action_a105qw_washing_machine_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0748dfe-02db-4014-8962-de2bf12bbe76/29424958765.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/67339217856.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/climograph_worksheet_garrett_geography.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a85e8782-c9dc-417e-b506-b0542972ff18/56144935817.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/comprehension_worksheets_grade_4_printable.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_off0001009b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1009B 5160 bytes
SHA-256: df2b50e76c6420fbbc52b42ec463147cdcda9a9a0bab9a883497d6c34a58c82e
font_01_sfnt_off00011224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11224 11228 bytes
SHA-256: ceaa7ce37a95b9a659654570c3c809595ab398c16bc07b9699f1742ffc7b0a4a

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