Malicious PDF — malware analysis report

Static analysis result for SHA-256 57b5714ea46c258a…

MALICIOUS

PDF

72.3 KB Created: 2021-01-31 00:46:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 7c0c1a2a4dd8c5ec564152c1a0e1f00a SHA-1: 8b1bb77cd013ad9fd7c6a2396916cb8765072c8a SHA-256: 57b5714ea46c258a26c1303d2bce60976f84f295110a4350832bc876e6608a97
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://yafferge.ru/wb?keyword=shattered%20meaning%20in%20english In PDF document text
    • https://xazonidunigi.weebly.com/uploads/1/3/4/5/134590253/pozataruvu-bopisofam.pdfIn PDF document text
    • http://xisulekotitis.iblogger.org/asset_encumbrance_reporting_corep.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384320/normal_60004e3c5e0be.pdfIn PDF document text
    • https://kezugefoluvero.weebly.com/uploads/1/3/1/8/131856244/biraj_jutafuwig.pdfIn PDF document text
    • https://voxisazemiruza.weebly.com/uploads/1/3/1/8/131871554/529981.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/Vif0L8T/new_amazon_fire_tv_cube_2020.pdfIn PDF document text
    • http://garant-ritual.online/43466990209q9lwe.pdfIn PDF document text
    • https://cdn.sqhk.co/gezefesete/AXB7gjE/snake_simulator_games.pdfIn PDF document text
    • https://cdn.sqhk.co/pakebisas/iaijbyM/weligamumazip.pdfIn PDF document text
    • https://cdn.sqhk.co/jeporikate/gmmDvUj/fake_video_call_with_celebrity_best_funny_pranks.pdfIn PDF document text
    • http://lnstagram-copyright-supports.com/vedupobolibupidunngmr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408336/normal_60129518c9c96.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/zonebon/final_fantasy_xv_official_strategy_guide.pdfIn PDF document text
    • http://zudozam.epizy.com/why_play_store_show_pending.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/wiwumo.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/badowigizonu.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/movie_counter_archives.pdfIn PDF document text
    • http://pekagotikoweguf.epizy.com/roperikazobira.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_off0000dc66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC66 5344 bytes
SHA-256: 90e2a0452f266a33f1e90ddf2e433edad45c4cbe7f7768185ec17727e56c9533
font_01_sfnt_off0000ee5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5B 11048 bytes
SHA-256: 5b2eadfeb448413e9838b6a9a64869e7caace9ea6d5f025de3315e04926857b0