Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5b3e6fb02beff3c…

MALICIOUS

PDF

72.2 KB Created: 2021-03-27 16:28:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c0fbc1faf3fb50655c82a6564224429c SHA-1: 8c79a136d07b22d27fc1471f35919a80596a075f SHA-256: e5b3e6fb02beff3cdf30fa48ab16f76adfd412a386e9dee08bc80a0e335860bd
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-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://jottigo.ru/wix?keyword=markbass+800+tube+amp+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367294/normal_60367d82791a3.pdfIn PDF document text
    • http://mynasert.online/25784915295kdiom.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424349/normal_5fc8d96c22698.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/ig2hbNs/freeze_adventure_ice_runway.pdfIn PDF document text
    • http://carbags.site/how_to_replace_ear_cushions_on_bose_headphonesbz96z.pdfIn PDF document text
    • http://myluckybet.xyz/char_broil_infrared_fryer_manuallaln7.pdfIn PDF document text
    • https://cdn.sqhk.co/pawijilabu/jgdx1gf/64434748302.pdfIn PDF document text
    • https://cdn.sqhk.co/kuniremolu/iaghhgd/19768246203.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377410/normal_6057a69e5832d.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/7f836eae-d187-41b9-9946-ab7ce114b6aa/frigidaire_refrigerator_repair_videos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebc75111-8c1f-4079-969f-a6b8f10c108b/sc_drivers_license_test.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd3fb9f7-5314-45a3-941e-fe5cd964bef5/ruzexaruju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61fc623a-7446-4bd4-823c-1ffdf84ae794/english_literature_jobs_abroad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c691aed1-7d18-481d-88d9-f0adea87c8ad/majizakazaloza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32cb7fe7-7c49-47af-b5be-bfc06f3db3f2/samsung_a10e_unlocked_firmware.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06ccd32d-00f4-4ea6-947c-c31972c9a8e2/aleko_sliding_gate_opener_ac1400_basic_kit_ac1400nor-ap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5958cb5-4b7e-4f9f-a0bf-4df831594246/xilutubepapazikiwobigoben.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ae4938d-796e-4f04-8f00-f9d3ee38861e/how_matter_cycles_and_energy_flows_in_an_ecosystem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59b530a1-797c-489d-af53-c9108f75a787/ratevodesoxol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/913ef1b6-cb2e-466c-b91f-f02fdc9bb48c/sitametonuguxodelev.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_off0000da29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA29 5512 bytes
SHA-256: b9eb029297ef9dabe4b3aa55563ecf443afd3c99c9d8f5eb4f6c1a43e4b8a521
font_01_sfnt_off0000ecce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECCE 11492 bytes
SHA-256: e55776854de1f651ea75e1f5eec056588191ba657fac535be692503f81f5a17a

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