Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6d371464e7d8e1d…

MALICIOUS

PDF

73.1 KB Created: 2021-02-21 16:48:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e3c4e3f7f3cfdffa186d3d4f387fd478 SHA-1: dbf2fcc701d68e5833ce87cf1d79588fe542101e SHA-256: c6d371464e7d8e1d6c7f6d2bd4288086884e4842003417cc62889238003b1cea
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://jottigo.ru/wix?keyword=afk+arena+ascension+guide+celestial PDF link annotation
    • https://cdn.sqhk.co/fagaxirupunu/98zrShe/xunadalujawemusezomekav.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495858/normal_5ffdeafaee414.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443802/normal_5ffff11c419a5.pdfIn PDF document text
    • https://cdn.sqhk.co/numovasovev/jhxWoRi/brave_private_browser_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/hahedZT/mindset_quotes_for_elementary_students.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480402/normal_6004cdb3db7c8.pdfIn PDF document text
    • http://mabay.fun/adada_velicham_vanthu_song_karaoke0ibp3.pdfIn PDF document text
    • https://cdn.sqhk.co/xexisini/gVby1wy/44702896835.pdfIn PDF document text
    • http://tugrull.com/50073729108soaz7.pdfIn PDF document text
    • http://yoganchik.space/puzelujogejpwwgq.pdfIn PDF document text
    • http://tesar-krd.ru/xanoxbdnno.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/silubebebefuju/wugap.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/fuerzas_intermoleculares_e_intramoleculares.pdfIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/18785913617.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/modib.pdfIn PDF document text
    • http://jejivosijej.rf.gd/english_letters_tracing_worksheets.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_off0000e207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE207 5240 bytes
SHA-256: 1fd1c9f0c6ad75a0277f9fb6261e5d4723ef462c46bfaed6cbfafcebb00f5bdd
font_01_sfnt_off0000f3f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F0 10232 bytes
SHA-256: 0c09fb6823dcfadb57bb6732c8a9449df71eebf6d0e1e06a187df96d0ba05232