Malicious PDF — malware analysis report

Static analysis result for SHA-256 428222410e4c7507…

MALICIOUS

PDF

70.4 KB Created: 2021-02-22 05:23:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 07eeff0f6b04f20218cf8329dbe3d573 SHA-1: d352a05bb94248d7977e65d77adebc6aeb57f381 SHA-256: 428222410e4c7507993e98e1c9e8a663321e74fd98b6322fa49ab49e0f5327d6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wb?keyword=brother%20j6520dw%20won PDF link annotation
    • https://dopozigixojak.weebly.com/uploads/1/3/4/5/134509916/733680.pdfIn PDF document text
    • https://danikobunib.weebly.com/uploads/1/3/4/7/134755608/kubababa-xijotonerirife-falik.pdfIn PDF document text
    • http://jirafka.space/25931795528pf8cn.pdfIn PDF document text
    • http://world-wild-shop.com/liravagaxepajp2ukj.pdfIn PDF document text
    • https://cdn.sqhk.co/wujugojuse/jnV0Ujc/sisezegafapufosave.pdfIn PDF document text
    • http://bovotuguf.iblogger.org/42467305636.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379237/normal_5fec9c2092afd.pdfIn PDF document text
    • http://trendmobile.ru/report_on_independence_day_celebration_in_delhixyvvi.pdfIn PDF document text
    • https://bopilopuneliniw.weebly.com/uploads/1/3/5/3/135304065/3032f6640.pdfIn PDF document text
    • http://fruit-citrus.space/3ds_max_step_by_step_tutorials_for_bbhdfy.pdfIn PDF document text
    • https://muwegejise.weebly.com/uploads/1/3/4/2/134265646/risonuzagofipiludo.pdfIn PDF document text
    • https://cdn.sqhk.co/nomelafu/vhhwhjU/4_pics_1_word_daily_challenge_norway.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/gateme/quadratic_equations_and_inequalities_answer_key.pdfIn PDF document text
    • http://pijularof.epizy.com/valkyria_chronicles_3_guide.pdfIn PDF document text
    • http://govetijedofesol.rf.gd/87538678356.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_off0000d7c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7C8 5296 bytes
SHA-256: be78d7027a6f1cebb7e8d07ed71a03dd71a29a08afe6daa3f29eb88561f9a90f
font_01_sfnt_off0000e9f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F8 10296 bytes
SHA-256: 73b55bcdedc7014af2783ce60aeaf0af906e8255a9a64e6c46cba4aee1100019