Malicious PDF — malware analysis report

Static analysis result for SHA-256 8edc193d37465a71…

MALICIOUS

PDF

69.5 KB Created: 2021-02-22 15:12:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 24e203129d921a1a53fb703a71f5beed SHA-1: c913fbee5276def0a9c97bb55cdfaa61686ff08a SHA-256: 8edc193d37465a71aa28968282145298b6fdb5fb9e46cf9813eeff930892b2bc
126 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
  • 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 https://leonvi.ru/123?utm_term=how+to+set+alarm+in+casio+edifice+wr100m PDF link annotation
    • https://pofemazavuson.weebly.com/uploads/1/3/2/3/132303373/tavagiban.pdfIn PDF document text
    • http://cccckkkkkdd.space/fijeravikajajuiuph.pdfIn PDF document text
    • https://cdn.sqhk.co/rutunidosaw/jeijhd8/idle_home_makeover_mod_apk_an1.pdfIn PDF document text
    • https://cdn.sqhk.co/zalopubid/ehY8hgv/dwight_yoakam_baby_name.pdfIn PDF document text
    • https://musibagufes.weebly.com/uploads/1/3/4/5/134587398/mujefinem-gugamoj-sulurekovimel-nobuba.pdfIn PDF document text
    • http://worldhold.online/dakorijuw6nioj.pdfIn PDF document text
    • https://tubozabuzimez.weebly.com/uploads/1/3/4/8/134878922/5688910.pdfIn PDF document text
    • https://rinadulig.weebly.com/uploads/1/3/0/7/130739308/6413863.pdfIn PDF document text
    • http://immorta-cross1.club/14701896842fy0pf.pdfIn PDF document text
    • https://totijavefukaja.weebly.com/uploads/1/3/4/7/134705726/69eff4b7f3e488.pdfIn PDF document text
    • https://cdn.sqhk.co/ropobemuma/Niem4gd/game_worms_zone_apkpure.pdfIn PDF document text
    • https://cdn.sqhk.co/bomunerafoju/tPyGtih/97883762355.pdfIn PDF document text
    • https://cdn.sqhk.co/ligumorik/eaLghjj/kit_festa_masha_e_o_urso_para_imprimir.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/rerinago/hyperlink_function_excel_to_another_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/grand_budapest_hotel_movie.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_off0000d316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD316 5412 bytes
SHA-256: 384305225cebeaccf10a6ac4967ff6f4947106e1609dd322fcfc04bbf2885ef7
font_01_sfnt_off0000e57b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE57B 10464 bytes
SHA-256: 317ee2108ef0427855d1b31b7552f753dba7993e34cbf68ba818b649ac77adf6