Malicious PDF — malware analysis report

Static analysis result for SHA-256 57e0a5605e281f12…

MALICIOUS

PDF

69.5 KB Created: 2021-02-26 15:11:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2c4e05d8a767b25455795e8b76b00ab8 SHA-1: db0de121a229b1fde41a4eed05d875ef7c6c2318 SHA-256: 57e0a5605e281f12600c2d5d2103e97b5a79042687c39135f4368e17196a4836
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://nipisod.ru/award?keyword=deer+predation+or+starvation+answer+key+quizlet PDF link annotation
    • https://fililajivivumir.weebly.com/uploads/1/3/4/4/134456316/9307c6bfd73047c.pdfIn PDF document text
    • https://cdn.sqhk.co/susorajin/mhdAdGw/blade_attacking_chinese_drama_ep_1_sub_espanol.pdfIn PDF document text
    • https://zoxusikajikad.weebly.com/uploads/1/3/4/8/134851315/1585534.pdfIn PDF document text
    • http://boguvijuximu.22web.org/guest_book_template_box.pdfIn PDF document text
    • https://zezowamizafomex.weebly.com/uploads/1/3/1/3/131381240/5fac57202837c8.pdfIn PDF document text
    • http://kvyovk.xyz/zamibivt0aj.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/ghgih8d/vemaxilerikumitarutapix.pdfIn PDF document text
    • https://towipikegogu.weebly.com/uploads/1/3/4/6/134690187/00408d64a10170c.pdfIn PDF document text
    • https://cdn.sqhk.co/vopupevomate/jhXjhdv/safe_worship_song_ukulele_chords.pdfIn PDF document text
    • http://shoop-fr.ru/animated_gif_wallpapers_for_androiduiyiz.pdfIn PDF document text
    • https://pazaduzot.weebly.com/uploads/1/3/4/4/134473777/rotujejewisivum_wisiwaxazik.pdfIn PDF document text
    • https://cdn.sqhk.co/roretuduva/igdgXjj/music_player_online_mp3.pdfIn PDF document text
    • https://sagopitura.weebly.com/uploads/1/3/1/1/131164573/4766219.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://titegerekarirov.rf.gd/90405959062.pdfIn PDF document text
    • http://vokamaluxofom.epizy.com/finding_area_of_triangles_worksheet_answers.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_off0000d321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD321 5448 bytes
SHA-256: ef38a5bde28488a1a09fcb28d9df70c6d18007381a095c6c95998a65a04f954f
font_01_sfnt_off0000e5de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5DE 10256 bytes
SHA-256: d6135f54d0b9587f5ac921c8aae1e3d4e3c4ca34e592d87d674576ae772559ed