Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b3e9ab219e6055…

MALICIOUS

PDF

83.5 KB Created: 2021-01-14 04:46:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 5d619d3852455b3dcd52e009f1501756 SHA-1: 5de28232c402fa5d718e67ebc04b4a7caa484bae SHA-256: 72b3e9ab219e6055d40c7c610363ce24e305ebb1ec6384184adffa3a07fadf68
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cctraff.ru/123?utm_term=char+broil+big+easy+smoker+instructions+manual In PDF document text
    • https://site-1177736.mozfiles.com/files/1177736/green_bean_casserole_with_bacon_and_fried_shallots.pdfIn PDF document text
    • https://site-1237926.mozfiles.com/files/1237926/ballet_at_home.pdfIn PDF document text
    • https://site-1177498.mozfiles.com/files/1177498/metal_slug_2_turbo_ngm-_9410.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419198/normal_5ffcb952e7299.pdfIn PDF document text
    • https://site-1175125.mozfiles.com/files/1175125/wifi_drivers_hp.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/eff88b.pdfIn PDF document text
    • https://site-1171887.mozfiles.com/files/1171887/scruffy_beard_definition.pdfIn PDF document text
    • https://site-1168079.mozfiles.com/files/1168079/is_nba_live_mobile_basketball_an_offline_game.pdfIn PDF document text
    • https://site-1218501.mozfiles.com/files/1218501/french_horn_star_spangled_banner_sheet_music.pdfIn PDF document text
    • https://site-1168354.mozfiles.com/files/1168354/ninja_turtle_fishing_rod.pdfIn PDF document text
    • https://lefokanu.weebly.com/uploads/1/3/4/3/134377273/dugowumuxebilu.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/firigugixujotov/a_byte_of_python_portugues.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/12273107387.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/swgoh_darth_malak_event_guide.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_off00010a22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A22 5424 bytes
SHA-256: 5262ca6d43df92a91ac356f6aa09c9699cd0f5476b71c26e7ee5e07eef8dad46
font_01_sfnt_off00011c74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C74 10648 bytes
SHA-256: d431e1726bbc921c19207187ba0d3a10872766364bd1b1e9b81ccefc4ecb20b7