Malicious PDF — malware analysis report

Static analysis result for SHA-256 447945592c54fa6a…

MALICIOUS

PDF

159.5 KB Created: 2021-05-07 02:08:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 65f16fd81f981de5b02375154eedfabb SHA-1: 51aaca9aec3f53b295adec33ef172f5ca78ec7d4 SHA-256: 447945592c54fa6ae7d2038ebdb96efeb0ba63b8e7035637311f480fd4913361
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by heuristics as a potential phishing or malicious link. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://lozipotod.ru/strik?utm_term=derecho+romano+pdf+marta+morineau+pdf+descargar PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444102/normal_5fd6a7ff9be80.pdfIn PDF document text
    • http://namabal.scienceontheweb.net/alfabeto_japones_kanji_completo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402933/normal_5ff684a019646.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464539/normal_5fe7dd1f74c2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446286/normal_6067d8d6f088c.pdfIn PDF document text
    • http://netolenogafa.getenjoyment.net/28828394098.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449766/normal_602366c9e5c7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451574/normal_602f98e1b7a1a.pdfIn PDF document text
    • http://nigemutekilum.mypressonline.com/free_printable_blank_bingo_cards_for_teachers.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/c16eb061-95ef-494f-bdf4-dcab15b3387d/fopogate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5cc73a7-f97c-4eff-a563-0739b2752dee/how_to_clean_ninja_air_fryer_oven.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85e630a8-6336-4c5d-9045-9a961f97c8ac/how_to_say_do_you_speak_mandarin_in_cantonese.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cc36489-74b3-4d24-ae2d-a53783e50700/english_idioms_list_with_meanings_and_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47a23852-e031-4c3f-acdb-b80c5dcb25e4/how_to_solve_fgx_with_fractions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f407514c-19d7-4466-86b1-1bd315da2a51/kubogusabomuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74da609d-7fb8-4e81-83a2-6e113a2881d9/monekumo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d50e3498-bbcf-4841-bc17-2cfa04ad6b2a/timex_indiglo_watch_band_adjustment.pdfIn PDF document text
    • http://zezofakarol.myartsonline.com/why_would_my_dryer_not_get_hot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82a4a0ea-100d-48a1-8492-8fedbde13292/evenflo_chase_lx_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/248a1002-00c6-4b13-a80f-baf3ebaf7123/what_is_the_easiest_pop_song_to_play_on_guitar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/895d8180-1556-45e8-a677-ba3ca8e54f75/casio_sgw-1000_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e572b5e2-2a73-4b77-a095-3bfc86d8a15e/how_do_you_know_if_your_evod_is_charging.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/beca53d5-fd6e-4230-b1c4-8ae25d5fcd28/fonexijivarufasoror.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_off0002321a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2321A 5536 bytes
SHA-256: 4a57482f31b459d21dad70fa8015690847d186060d4c18978b94c5dfb1919e5c
font_01_sfnt_off000244c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x244C9 13300 bytes
SHA-256: c8bfaddecf36877fc9250f1f3e8a28b43200d30b7874804807526229edc03823

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