Malicious PDF — malware analysis report

Static analysis result for SHA-256 935ceb17b47ba77b…

MALICIOUS

PDF

75.3 KB Created: 2021-04-01 14:59:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 235725f0e2c90dfab0f36701b7253420 SHA-1: 632cbe55401877437d373650027386a57cacdd21 SHA-256: 935ceb17b47ba77b81588778140d6fc32b70c9f6d60da0ffa30342acc30f8897
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • 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.
  • 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 http://fetazobamu.iblogger.org/another_term_for_warm_and_fuzzy.pdf In PDF document text
    • http://vivofuma.66ghz.com/julasonotalatemunepu.pdfIn PDF document text
    • https://cdn.sqhk.co/kejaxedusuk/hihBTKi/zombie_gunfire_mod_apk_1._0._10_download.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzosexiwugu/3ijHhgp/57844859138.pdfIn PDF document text
    • http://wemigime.iblogger.org/woxoxexurat.pdfIn PDF document text
    • http://nageramuvepom.mywebcommunity.org/how_fast_can_a_rzr_170_go.pdfIn PDF document text
    • http://xekawojuma.22web.org/4921866052.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/bQ3nTxENlgE/wb?keyword=como%20calcular%20la%20molaridad%20de%20una%20disoluci%C3%B3nPDF link annotation
    • https://uploads.strikinglycdn.com/files/2286068b-d940-410c-beee-abca6c27ae4b/alesis_hd24_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc7b8e4e-3c16-452d-86f1-d12869a18530/bemazutofevidav.pdfIn PDF document text
    • http://bumejefivoxigo.myartsonline.com/schizoaffective_disorder_dsm_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37c8deaa-3ef6-4d8d-b575-a14cee105d19/ap_human_geography_class_website.pdfIn PDF document text
    • http://zejagal.rf.gd/fovoxusisebosul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7aed897a-a678-4487-9904-eb52d9739b52/is_acer_a_good_laptop_company.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08c5d649-9cc4-4813-9288-b59046a7218c/jaduzed.pdfIn PDF document text
    • http://faxumev.epizy.com/oster_belgian_waffle_maker_manual.pdfIn PDF document text
    • http://supijidexigoba.epizy.com/motorola_surfboard_sb6121_speed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d17b7e1-c523-40fc-aab4-6b1f4ec98e82/sipisusegekato.pdfIn PDF document text
    • http://loxosufodu.epizy.com/nizobuk.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_off0000e4ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4AD 5124 bytes
SHA-256: e017f028221ddf1ccdd9c5283e8e7a07293a3cc5a246f7c661143db3d3791461
font_01_sfnt_off0000f5b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B8 12180 bytes
SHA-256: 752a2d01d129ab54f0b5dc7a07a62de1d89993b4fec229f396bd0e6209dcf849