Malicious PDF — malware analysis report

Static analysis result for SHA-256 957bb91558c59714…

MALICIOUS

PDF

224.8 KB Created: 2021-03-21 23:03:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: dc41d43caba893d92f60c58d6645de0c SHA-1: 150f3aabc4a3a29830ff9098c15a13465aef1e30 SHA-256: 957bb91558c597140430e76a8bb8b1adbb6424034abbd868c7ead001725d75ec
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 0.9979

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://leonvi.ru/123?utm_term=jeep+grand+cherokee+altitude+2018+manual PDF link annotation
    • http://tufodudem.mypressonline.com/baofeng_uv-5r_manuale_ita.pdfIn PDF document text
    • http://viniveba.mywebcommunity.org/what_is_wings_of_fire_book_1_about.pdfIn PDF document text
    • http://jedilinosur.mywebcommunity.org/80710554309.pdfIn PDF document text
    • http://zokupez.mygamesonline.org/25078321747.pdfIn PDF document text
    • http://lezofifividex.scienceontheweb.net/alfredo_bosi_reflexes_sobre_a_arte.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/ca995c01-1261-4304-b6a9-2fecf10ae60e/zametibalupawikapimawe.pdfIn PDF document text
    • https://f13dd0f9-fe0a-4257-a88d-d9af1a1cf0e3.filesusr.com/ugd/d954c5_42c8db8d61ee49fd81f6ad080e9a02ad.pdf?index=trueIn PDF document text
    • http://fusozevukatamir.atwebpages.com/behringer_eurorack_ub802_power_supply_schematic.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/kinemaster_cracked_version_apk_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee871ba8-d0b0-4907-b175-5d59c7174f58/gemini_alarm_system_low_battery.pdfIn PDF document text
    • https://d896c2b7-539c-4146-aa8a-b39d26e096d8.filesusr.com/ugd/a98ecc_69375c42de2f43729469116774eb6cd5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/i_cross_my_heart_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3c8e9dd-91a6-4a16-b302-72f9db9237b5/christianity_before_christ_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8308033f-05d0-4a5c-bb3b-6b107aac8b9e/norudubixudazem.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/nuxoxagis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/175562ad-8212-4943-a28b-a03a5cf6d087/26250361259.pdfIn PDF document text
    • https://a8fdb364-3865-4521-a36b-e12f4de7752f.filesusr.com/ugd/e20637_7519b699679c491c8381472fe9fd8e46.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6793ab46-2672-41e4-9bf3-f4d614589044/que_es_la_neuralgia_facial.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00033424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33424 5884 bytes
SHA-256: 20f114440878143b523f79ba8022f6919c74689cf8db6cd5fa42baf759434cca
font_01_sfnt_off00034807.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34807 13120 bytes
SHA-256: 2c8484692fe5b4c73122c57f5f6fe6c2406b1214f9e8fb484f4b0d8d53bffbb5

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