Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d73b5cdb7d5ab6e…

MALICIOUS

PDF

78.6 KB Created: 2021-04-04 19:54:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 70d9b028d08c6e22a6f6bd3ee8daa8fd SHA-1: 54e060091b8047503898372826fe207708539f8d SHA-256: 4d73b5cdb7d5ab6eeb0f2f97136ca1a7ecd2c74a3f3b48a9d8b50618425ddbbe
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://druttle.ru/123?utm_term=new+kenyan+passport+application+form PDF link annotation
    • https://rufogeror.weebly.com/uploads/1/3/4/6/134664275/3110418.pdfIn PDF document text
    • http://amin-ukraine.net/86594268804s1ent.pdfIn PDF document text
    • http://megantv.site/369216304008gz99.pdfIn PDF document text
    • https://cdn.sqhk.co/sukonazukuv/gc2MXhd/sticker_maker_app_for_laptop.pdfIn PDF document text
    • http://operationhomeplate.com/que_significa_imagen_satelital7thhg.pdfIn PDF document text
    • http://segwaywheelchair.ru/14146385174qpqjb.pdfIn PDF document text
    • https://gupapuna.weebly.com/uploads/1/3/4/7/134726568/7342269.pdfIn PDF document text
    • https://cdn.sqhk.co/fetebutujo/rjigQjf/zifozojerupumurugigilak.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxuzobisu/bjbhaJe/daxovezisa.pdfIn PDF document text
    • http://crispyset.online/15119239212ahw5o.pdfIn PDF document text
    • https://gilurumujeluzem.weebly.com/uploads/1/3/1/8/131857598/3285965.pdfIn PDF document text
    • https://cdn.sqhk.co/xonipavu/P0kXLge/european_basketball_league_standings.pdfIn PDF document text
    • https://cdn.sqhk.co/nefijisob/fehacjc/53122546015.pdfIn PDF document text
    • https://cdn.sqhk.co/rumobotituda/cgjIjdO/apa_citation_style_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tubupejevomo/beauty_camera_apps_karna_hai.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/dazefemukaginevotif.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/scansnap_s1300i_wifi_switch.pdfIn PDF document text
    • https://s3.amazonaws.com/bubodeliza/35968218783.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/color_wheel_worksheets_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/93519639855.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/what_words_end_with_lyly.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e781.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE781 5176 bytes
SHA-256: e549141612fcd71dd82f4770f1c6ab5788012583461a1b28642727025032e9c3
font_01_sfnt_off0000f91b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF91B 10940 bytes
SHA-256: 99f8943223749eee26d7c0f64cede1edc168dfd36f8a5a24f8cfa24ce0276058
font_02_sfnt_off00011e90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E90 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

Open this report in the interactive analyzer, or submit your own file for analysis.