Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe49a483e20154bf…

MALICIOUS

PDF

100.2 KB Created: 2021-03-19 17:22:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 2a48845d768d3ba8a0eb354cf9e4ee0e SHA-1: d99f387321982a2fe1039b7be453598a83b5805e SHA-256: fe49a483e20154bfc88b3eb18c498f3a298538aaa05ccba8e8709566bd2b43c0
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to 'https://maypoin.ru/aws?utm_term=the+redemption+of+althalus+movie', which is likely a phishing or malware distribution URL. The document body, though heavily obfuscated, contains text related to a movie title and authoring application details, suggesting a lure. No scripts were extracted, but the presence of external URIs and the ML detection strongly indicate malicious intent, likely related to phishing or initial payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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/aws?utm_term=the+redemption+of+althalus+movie PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4367631/normal_5ff6a4f1da438.pdfIn PDF document text
    • http://gapejeg.22web.org/pokuwowozowerejuminoja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386084/normal_5fd9a361e3336.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443619/normal_600bc4e73007b.pdfIn PDF document text
    • http://feroxezoralezuk.iblogger.org/proteinuria_diet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495846/normal_603fc688b475c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472753/normal_5fde108232bd6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://luxorofanogefa.rf.gd/water_margin_tv_series_characters.pdfIn PDF document text
    • https://s3.amazonaws.com/muxozuvalubi/nordictrack_exp_1000x_specifications.pdfIn PDF document text
    • https://bf130ee1-1463-4c69-9604-1b23772ced92.filesusr.com/ugd/b4609a_a9551b0877bc4939bdc715418a1ad66f.pdf?index=trueIn PDF document text
    • https://7b4e975e-109f-4397-a679-93e438ff1453.filesusr.com/ugd/c33f71_0c100baf36cb4ec69a5b84b2645d4c77.pdf?index=trueIn PDF document text
    • https://151dec52-cf20-477b-a401-a68195eead79.filesusr.com/ugd/8538f4_99a49bc40c3040e4bf89bbdf7039b739.pdf?index=trueIn PDF document text
    • http://kisijolimis.epizy.com/36529330193.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/center_radius_form_from_graph.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/bugoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc7b0aef-f4c2-41b8-9094-088072e5cb85/xupujukumokez.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/emotional_scenes_in_telugu_movies.pdfIn PDF document text
    • https://d1159ab4-cbf5-42eb-897b-83a5e94cd7da.filesusr.com/ugd/536122_4241623232e6469dbc1e32fd9b1de0c1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/jamofavutubutuxevenepa.pdfIn PDF document text
    • http://bumerezuwo.epizy.com/62948449660.pdfIn PDF document text
    • https://fa53e508-d88d-41cb-897c-7a5b6f1bfcc3.filesusr.com/ugd/361045_209eecde488f4e3880de1983bc8ab459.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lomogas/example_of_freuds_theory_of_personality_development.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c3ef6f0-2748-4ce1-924f-fa5bff34f263/28046951421.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3118a44c-9ece-4828-b4ed-2ae21f9c08cc/2137848078.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_off0001475b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1475B 5292 bytes
SHA-256: aeb8d0622a9a5a31810cd9d67aa4bb77c646dc3d9c84ff93b6ef7c094dd41bd3
font_01_sfnt_off0001592f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1592F 12156 bytes
SHA-256: 6c38a13f4a97df2f2574b6a252c93dafdff45db7ce0eedc9be4e8093d3246c17

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