Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fee2a830b121aec…

MALICIOUS

PDF

70.1 KB Created: 2021-03-03 20:13:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b4175336c7381a3e6bd926b8cc1fd85d SHA-1: 964907857178f41b785189b79dba95a6effde643 SHA-256: 3fee2a830b121aec4fd0226325fc87a65dfd95a4e8e26991ed939978bd184be1
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://xezojetit.ru/wix?keyword=95+south+st+brooklyn+ny PDF link annotation
    • http://netewe8.xyz/raxawunukexikepukdg827.pdfIn PDF document text
    • https://fukuzodi.weebly.com/uploads/1/3/5/3/135329923/1260780.pdfIn PDF document text
    • http://suxiselukex.66ghz.com/wefamiwosa.pdfIn PDF document text
    • https://magazeja.weebly.com/uploads/1/3/5/9/135990405/mepekanidadibemis.pdfIn PDF document text
    • http://francobusiness.com/prehistorico_definicion_raex8efv.pdfIn PDF document text
    • https://pivozedotafi.weebly.com/uploads/1/3/1/0/131070355/5510837.pdfIn PDF document text
    • http://jujokifenake.22web.org/xeritemaw.pdfIn PDF document text
    • http://wupofifaxixusi.66ghz.com/bajaxazuvimil.pdfIn PDF document text
    • http://zipubezexupoka.mywebcommunity.org/dark_souls_3_wolf_covenant_location.pdfIn PDF document text
    • http://vebilodugisugod.iblogger.org/b2_conservation_of_energy_lab_answers.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuzotulerijenej.rf.gd/honeywell_vista_20p_report_codes.pdfIn PDF document text
    • http://pefodajisotavuk.rf.gd/riwokokagofigibegobekiv.pdfIn PDF document text
    • http://xedoruvuseju.rf.gd/you_are_beautiful_songs_korean_drama.pdfIn PDF document text
    • http://vufeligix.rf.gd/ireport_parameter_default_value_expression.pdfIn PDF document text
    • http://xezipunefosipu.epizy.com/hp_stream_11_pro_g4_ee_review.pdfIn PDF document text
    • http://wiwafejopof.epizy.com/bouwbesluit_bijlage_1.pdfIn PDF document text
    • http://nazonuretowu.epizy.com/mavawuxanilasabiledab.pdfIn PDF document text
    • http://junorijuzijipu.rf.gd/57346341807.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_off0000d762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD762 5056 bytes
SHA-256: 9f53e158855be97b9948be8e60ac99813e0e56d0ebe1b235cf0aeb3a3499701d
font_01_sfnt_off0000e896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE896 10172 bytes
SHA-256: bb5c57679b65c81f5a4d4c3d1d09ca6e01b59a9e6b490867a0ffb49241dcd6ff