Malicious PDF — malware analysis report

Static analysis result for SHA-256 80dfa61e07eecc1c…

MALICIOUS

PDF

79.4 KB Created: 2021-04-06 21:07:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 46413f8b2e6e6756fcb2d096718e1188 SHA-1: a60241853f8f69dc95c53339500579d44a1f4c64 SHA-256: 80dfa61e07eecc1cc5607dad6f091f2944e34313681ead2cd6f1d9d771c6dc10
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. The document body, though heavily obfuscated, suggests a lure related to agreement templates, aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/award?keyword=collaboration+agreement+template+pdf PDF link annotation
    • http://gugolufixa.mywebcommunity.org/95953169895.pdfIn PDF document text
    • http://yildirimotobursa.com/kevin_toms_football_manager_apk_download4ypux.pdfIn PDF document text
    • http://kemytbok.xyz/apa_manual_8th_editionvh2bh.pdfIn PDF document text
    • http://carbackseat.site/35425864383p5sbf.pdfIn PDF document text
    • http://bloodcraft.online/secret_lair_drop_series_wizards_of_the_coast_presents_after_great_deliberationju77y.pdfIn PDF document text
    • http://uchebnoe.website/671691271433vpd9.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/sajatesawodiji/where_can_i_pay_my_dish_network_bill.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/dance_basanti_song_video.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/309fe4a0-2b6f-43c4-b99e-63c4a7c14e4d/22371205402.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/how_to_reset_hitachi_ac_remote_control.pdfIn PDF document text
    • https://s3.amazonaws.com/padanivozeb/sifoko.pdfIn PDF document text
    • http://xobibaga.myartsonline.com/ragos.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/20606728989.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1824f86f-e048-4951-b961-c46f5f998c69/23095415431.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/hp_laserjet_pro_m1212nf_multifunction_printer_driver_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cd8f866-94c5-4842-a042-044511d843a7/panasonic_kx-tgp500_default_password.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9181bd9-dc0b-4eb5-8f47-3f4b71fd4c35/76924586145.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/accounts_receivable_aging_report_sample_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/kegovev/sqlite_date_function_in_android.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/kabujadavulatasumipawuji.pdfIn PDF document text
    • http://rabelinowizufe.myartsonline.com/antonio_gramsci_prison_notebooks.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/cymbals_drum_kit_free.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_off0000f9f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F5 5228 bytes
SHA-256: 652cb2f88c1227ed0e4b60ee5980e6f70e1ad1927fdd59232b67e39904b6cda3
font_01_sfnt_off00010ba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BA4 10628 bytes
SHA-256: b9b9f7cc694e75be1aef50841529e204c86e6b97658f96d26b3ea03c0b8d5228

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