Malicious PDF — malware analysis report

Static analysis result for SHA-256 69b8b1801291ea70…

MALICIOUS

PDF

79.2 KB Created: 2021-03-18 12:23:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b86ef4795e88b7d5537254fbdb838f8d SHA-1: 79a9d966d39987a539465a8f08a0a3f8cf07b32b SHA-256: 69b8b1801291ea70fb809b85cf70627b5aff91c24275224d86724693aeb40f6a
96 Risk Score

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 appears to be obfuscated or corrupted, but the presence of external URIs and the overall detection strongly suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://midufefew.ru/award?keyword=cemento+portland+historia+pdf
    • http://gukabibus.mygamesonline.org/pdf_to_word_online_free_ocr.pdf
    • http://tetupamino.mywebcommunity.org/ruwoxidiwamotoruj.pdf
    • https://cdn.sqhk.co/gawarebadal/ayidifa/57422781698.pdf
    • http://wijasagasipode.getenjoyment.net/gekigugenuwuwavufuxa.pdf
    • https://cdn.sqhk.co/bozawenibiwa/hig1Ygi/100_s_of_buttons_prank_sound_effects.pdf
    • http://gezetola.scienceontheweb.net/93312421590.pdf
    • https://cdn.sqhk.co/resasenubori/igFiijd/bang_aescripts_free.pdf
    • https://cdn.sqhk.co/tinulafi/ciah4Lv/tanej.pdf
    • http://worozoxiw.sportsontheweb.net/is_quiznos_open_today.pdf
    • http://gifazat.iblogger.org/canon_imagerunner_advance_6555i_user_guide.pdf
    • http://fezatubiwe.getenjoyment.net/bosch_glm_30_professional_manual.pdf
    • http://bidetoluji.getenjoyment.net/functional_finishes_for_textiles.pdf
    • https://cdn.sqhk.co/lafuwexale/oggcQgh/guardian_tales_lazy_fairy_comic.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/1cc7c116-523b-4f88-ab15-55fc4c9c8772/hansel_and_gretel_movie_2015.pdf
    • https://uploads.strikinglycdn.com/files/0859f6a3-c2fb-4de8-b771-9e8c7942a7f6/excel_vba_get_column_letter_from_address.pdf
    • http://kepawomokatuke.myartsonline.com/autodesk_eagle_manual.pdf
    • http://petirepure.epizy.com/academic_writing_for_ielts_by_sam_mccarter.pdf
    • http://gagolabirej.atwebpages.com/add_subtract_fractions_word_problems.pdf
    • http://bememikat.onlinewebshop.net/sultans_of_swing_tab.pdf
    • http://xomapagovujux.atwebpages.com/how_to_apply_for_hdfc_preferred_customer.pdf
    • https://uploads.strikinglycdn.com/files/6a2c7b36-e2e4-4917-a383-67d7fbbc6664/63289093206.pdf
    • 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_off0000f394.bin
d386ca2e69ec77a970a18cefdb96171c1c404b6c86d27601c6caf7fd1a9d0fdb
pdf-font-stream PDF embedded font (sfnt) at offset 0xF394 5188 bytes
font_01_sfnt_off00010500.bin
7c8c47dc5c324c22ee41721df00fa9dd638dd839e5d9c82f2903056450eb26a6
pdf-font-stream PDF embedded font (sfnt) at offset 0x10500 12776 bytes