Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a0e5e08d04c4c48…

MALICIOUS

PDF

137.6 KB Created: 2021-05-24 09:41:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5710c24c7e060479b9cafd071b30f1b0 SHA-1: e1cc1afbf6244647ea4600f2d077ff3410f22203 SHA-256: 9a0e5e08d04c4c48c80b9236d5c08eb60747b22c878ee70e3306761a478a812b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as a malicious PDF by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, contains a string that appears to be a lure related to 'Mahabharata in hindi video', suggesting a targeted social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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://jumiwimov.ru/strik?utm_term=mahabharata+in+hindi+video PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4492586/normal_604b714f287bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488103/normal_606bccce0a268.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448548/normal_5fd6a6b9c7b61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449771/normal_60418cb5569f7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412570/normal_5fe5514fda06e.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/c5ff3be4-afe8-4cda-9ad4-697184daf8fe/19049439246.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/std_12_english_textbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36ba70f0-206c-4b9b-a6f4-629b6989d198/39982907681.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/coordinate_geometry_formulas_class_11.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0ff5b9c-22a0-4ab1-a2c3-8d0b84cf03b4/i_just_want_to_be_average_mike_rose_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/b_tech_film_songs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc045443-598e-40ff-913a-7a96ee150640/united_states_postal_service_history_wikipedia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7c60841-675e-4fa9-aa6a-a6ec1c1fdb0f/after_the_quake_by_haruki_murakami.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13e84564-4cb8-4a0b-a24f-1055aa1b2bce/sumada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c53ee4ec-95ce-4253-a9ab-49712c33a727/bose_companion_2_series_iii_multimedia_speaker_system_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/gifelodeda.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/napukebutisakogama.pdfIn PDF document text
    • https://s3.amazonaws.com/zisulamisozoto/fuzutaximokarekifo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c820986-1d1f-481a-907e-32042070cee3/home_network_setup_help.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/71550181995.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/16643234351.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0001da50.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1DA50 21376 bytes
SHA-256: b4d4b680f3aa3d4091e16cc807345a69919e0e26c3dd312fcd507bf4e9fd85c5
font_00_sfnt_off00018e4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18E4A 4100 bytes
SHA-256: 86e28949ddc416ebeaf5ca8b01ec3987665e7230779c11aede04fc52492f1e7e
font_01_sfnt_off00019c71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19C71 4908 bytes
SHA-256: b142feb6d04573ba7028041319a816971ea38bec51c9adfee0d39429dbf25b73
font_02_sfnt_off0001ad25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AD25 3720 bytes
SHA-256: b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b
font_03_sfnt_off0001b887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B887 9980 bytes
SHA-256: 05962287ee171a4e09d5af3763949d95747790ec0e3b828a94feb45e5b208d31

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