Malicious PDF — malware analysis report

Static analysis result for SHA-256 49cd5d90c15062e3…

MALICIOUS

PDF

74.4 KB Created: 2021-02-18 15:58:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e5d0076594b76e3b411daf74afcf186f SHA-1: c65232c81bda17b5a53e1d39f86130d8289331b9 SHA-256: 49cd5d90c15062e33db988590bab67c3eb0c83a6a073b6fd8218bad385f68f46
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://maypoin.ru/123?utm_term=shatter+me+series+recap PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4384150/normal_5fe2c06890566.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416671/normal_602d9e5016023.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476273/normal_5fd3531b81a1b.pdfIn PDF document text
    • https://cdn.sqhk.co/lokutibu/6jgSMDI/koketazodasibeji.pdfIn PDF document text
    • https://cdn.sqhk.co/zogameva/cmid7gh/valaxumuxawa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404738/normal_6019a4ecb0900.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447085/normal_6023483264a5f.pdfIn PDF document text
    • https://cdn.sqhk.co/jiloduvunilu/ehcQshg/carx_drift_highway_racing_simulator_setup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453102/normal_5fcd58a1af076.pdfIn PDF document text
    • https://cdn.sqhk.co/pesenexur/aiNHiaq/amazing_world_of_gumball_games_dino_donkey_dash.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/netinuwa/45128532046.pdfIn PDF document text
    • https://s3.amazonaws.com/lonozote/dyson_air_multiplier_fan_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/duxaremaladavarusek.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/disputing_errors_on_credit_reports_letter.pdfIn PDF document text
    • https://s3.amazonaws.com/resabomibogodaw/both_ways_open_jaws.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/9872795871.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/regrouping_fraction_subtraction_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/gusule/application_octet-_stream_file.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB68 4816 bytes
SHA-256: 863fd17bc63da0a01d6d84c14503b97914351f88010ae5b42e0cbd5402030350
font_01_sfnt_off0000ebb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB9 10228 bytes
SHA-256: 33d210372c85da8b519349797b0be0697e3304cbda183c1d3602d3d640a69b5b
font_02_sfnt_off00010edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EDD 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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