Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef75312fb4f6b99…

MALICIOUS

PDF

78.9 KB Created: 2021-03-08 12:21:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ed2555aaca28e210c706bb99c6c7af5 SHA-1: a7faf6513a56adcf09e0a145ebaf211950f5b828 SHA-256: 0ef75312fb4f6b9963fb1438a6c1b46839efe6b0b2471762f185a55caf19f3d1
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'bologen.ru' which is associated with 'thetruthspy gold apk download', suggesting a lure for users to download potentially unwanted or malicious applications. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=thetruthspy+gold+apk+download
    • https://cdn-cms.f-static.net/uploads/4480591/normal_600e0d3378f5f.pdf
    • http://familyit.info/diwovhbnv2.pdf
    • https://cdn-cms.f-static.net/uploads/4406208/normal_6030db272aeb9.pdf
    • http://gazajujana.mygamesonline.org/vokudevagijamumuduse.pdf
    • https://static.s123-cdn-static.com/uploads/4426066/normal_60057e0c29c83.pdf
    • http://loduwij.scienceontheweb.net/you_are_the_universe_deepak_chopra_summary.pdf
    • http://kinorio5.xyz/zelda_a_link_to_the_past_items_locationskudz5.pdf
    • https://cdn-cms.f-static.net/uploads/4464852/normal_6024802622fe1.pdf
    • http://bisibometixo.mywebcommunity.org/taco_bell_crunchy_taco_nutrition_info.pdf
    • https://cdn-cms.f-static.net/uploads/4467560/normal_603aa30023cb8.pdf
    • https://bewogataxatux.weebly.com/uploads/1/3/2/6/132695278/67f42010ba19.pdf
    • http://trafikcezaodebayisi.com/ny_drivers_license_renewal_covid_19406vi.pdf
    • http://usacreditscore.info/924777022690o2tk.pdf
    • http://rexuwoxaga.sportsontheweb.net/86640937447.pdf
    • http://raisinshub.club/827821085141vomy.pdf
    • https://nufewaxitobazat.weebly.com/uploads/1/3/4/7/134748461/52c470225a4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://ede8a7a3-2377-4e09-926a-401222b31c25.filesusr.com/ugd/81c89d_4aa0b6497eca494fa97fbd2944bfa3f2.pdf?index=true
    • https://efa91360-7c21-416c-9d60-3189e0beb381.filesusr.com/ugd/42ffc7_684dd0b698a74626a00bd9fbbf9434ee.pdf?index=true
    • https://dae57379-2785-4108-a223-4562ecbfc22e.filesusr.com/ugd/87ad98_ef72e0c3bbda457caeae26977fcf48b5.pdf?index=true
    • http://kaloruligot.onlinewebshop.net/american_english_dictionary_online_free.pdf
    • https://67dec473-0a9c-497c-80b1-62a4c84c5046.filesusr.com/ugd/0aab01_27c99cda1dc34fd6b8ad1906d1803797.pdf?index=true
    • https://3794eb9c-cc8b-492c-aecc-44533f76aaa6.filesusr.com/ugd/1ee69b_a922ea42ee1b4a30bf9f6452c7e672b3.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f872.bin
7fe04f09be4b7ea311a915379230434c36a3bb181e67ad11a18474d9cca1ff1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF872 5428 bytes
font_01_sfnt_off00010afb.bin
ce10d254a4bef7025da88682c17a230af2172b5111d23107cfa3f847653d6e78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10AFB 10424 bytes

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