Malicious PDF — malware analysis report

Static analysis result for SHA-256 11a47a19deacdaa1…

MALICIOUS

PDF

65.7 KB Created: 2021-02-17 02:42:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9f9015077245bde5ccc2d08c55607526 SHA-1: a61564eb7466e26d243a55d5c282173b83395d29 SHA-256: 11a47a19deacdaa191b3fdaf54d572516c106d6572c091a2f26c8058ea277160
126 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
  • 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://druttle.ru/wb?keyword=singer%20sewhandy%20model%2020%20manual PDF link annotation
    • https://cdn.sqhk.co/puvegipuros/hf1Vjjt/66422902078.pdfIn PDF document text
    • https://rupusuji.weebly.com/uploads/1/3/4/8/134878943/bajepojubutid.pdfIn PDF document text
    • https://kivisazof.weebly.com/uploads/1/3/2/6/132696558/c27ccf75da.pdfIn PDF document text
    • http://tihefers.online/bored_pile_design_calculation82ot5.pdfIn PDF document text
    • http://damvglaz0.xyz/940748654225j1yr.pdfIn PDF document text
    • https://revijokatise.weebly.com/uploads/1/3/3/9/133999222/9781142.pdfIn PDF document text
    • https://cdn.sqhk.co/vipujitebiki/vhajfgf/auto_clicker_ios_13_cydia.pdfIn PDF document text
    • https://cdn.sqhk.co/xibidodoko/a0JBJEj/89427288454.pdfIn PDF document text
    • http://idealica-italiaufficiale.website/five_night_at_freddys_2_song_lyrics48ufz.pdfIn PDF document text
    • http://hookup157.site/2_player_cupheadzstp2.pdfIn PDF document text
    • http://umniashka.ru/bigo_live_unlimited_diamond_hack_tool_apkqyfoj.pdfIn PDF document text
    • https://walikuroxora.weebly.com/uploads/1/3/2/8/132815001/9471635.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/jalasilunaz/tudopujunonefax.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/structure_of_borazine.pdfIn PDF document text
    • https://s3.amazonaws.com/welanisowari/79327569950.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_off0000c21f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC21F 5812 bytes
SHA-256: f17e423192f25b1ab8a34354f993a3803e116463154ea099a27fc2b2d941e3b4
font_01_sfnt_off0000d5d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D1 10620 bytes
SHA-256: 35932bf6d0c11fb0424cf97eaf08e01e601c0dbef689f7cbd1d206e773baca06