Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c48ec23696a035e…

MALICIOUS

PDF

87.2 KB Created: 2021-03-13 15:47:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 42490c5b4b4806c7c7a0ab631f0f77fd SHA-1: 1cda2795919a329764be62f9c500e2e1bee2da51 SHA-256: 0c48ec23696a035e4d6b1f750887bf1c7a1f5253d8b831c55e680b149f75ef10
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 a URL that suggests a lure for a "trove hack tool 2020", indicating a social engineering attempt to trick the user into downloading a payload. While no scripts were explicitly extracted, the PDF structure and embedded URI strongly suggest an intent to deliver malware via a phishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://druttle.ru/wix?keyword=trove+hack+tool+2020 PDF link annotation
    • http://madoxorijegobe.sportsontheweb.net/top_boy_season_1_explained.pdfIn PDF document text
    • http://tophomework.space/youtube_pencilmation_hat_song0le81.pdfIn PDF document text
    • http://vk-settings-change.online/frases_de_libro_el_principe_de_nicolas_maquiavelotcr16.pdfIn PDF document text
    • http://jukojadijomefar.medianewsonline.com/53226428166.pdfIn PDF document text
    • http://mopexaxurip.getenjoyment.net/learn_thai_language_through_english.pdfIn PDF document text
    • http://repair-telefonov.ru/ae_jate_hue_lamho_mp3pbwuq.pdfIn PDF document text
    • http://fajufoturesu.sportsontheweb.net/80144010019.pdfIn PDF document text
    • http://deutschebank-meine.com/dugovudutedisezununutumusxoxxj.pdfIn PDF document text
    • http://rexuwoxaga.sportsontheweb.net/61129105734.pdfIn PDF document text
    • http://strongcreditscore.info/bixalasotafepupabuwofamo0fnyx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/lidodubew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd371b5c-d67f-45f2-955d-8e429f90c8e7/62838014907.pdfIn PDF document text
    • https://cbb9655c-b60d-4095-8c1c-bb5f9a2903c5.filesusr.com/ugd/4dd980_419102681e1443e4b19ce773eec6899c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nonabafat/new_telugu_movies_in_tamilrockers.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/letters_alphabet_template.pdfIn PDF document text
    • http://lopoduki.rf.gd/template_class_in_c_example_programs.pdfIn PDF document text
    • https://33c7e2ec-32fc-4676-a642-9d95a4379e01.filesusr.com/ugd/622218_e591e0b5f93244eeac1125a5156a4c13.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b56440c-9029-4ef6-93b5-3dfe0c63f7d9/logitech_speaker_system_z323_connect_to_tv.pdfIn PDF document text
    • http://tuvalej.epizy.com/90649565712.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/preface_to_lyrical_ballads_key_points.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/how_do_i_reset_my_dymo_labelwriter_450_twin_turbo.pdfIn PDF document text
    • https://a8a70d16-e3f0-4805-b115-4d8c62c40b57.filesusr.com/ugd/82e28d_6c722608e3df431db438b77e886daffe.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fdb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB1 5056 bytes
SHA-256: 67c4cf86d15179f193abec2f0181627cdd3b086c3d034e8acea4078b93be44a6
font_01_sfnt_off00010eda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EDA 7772 bytes
SHA-256: 130f5ef30c930489b8038592a048e44f81899b00f45e64c6d73cbbb7e9a39b52
font_02_sfnt_off000127ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127AD 11608 bytes
SHA-256: 58e4d7e9ef210f5de48cc830fd97b5c17c962cb683f1e6232a2466c090fc60c0