Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2d0952f8bcd5b33…

MALICIOUS

PDF

75.4 KB Created: 2021-01-24 21:15:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 14b05e01635692d2573241e8dfedc135 SHA-1: fc2b504af48b3980cb731aa4ecbb6b86379dc226 SHA-256: a2d0952f8bcd5b33c9033c802ba7e368b31c22974207674b9b2c6ee4442d7a9a
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://baarspo.ru/wb?keyword=grandparents%20day%20gifts%20from%20preschoolers PDF link annotation
    • https://cdn.sqhk.co/puvubuzu/iijccvZ/minecraft_pocket_edition_pc.pdfIn PDF document text
    • http://ashotik.space/bet9ja_old_mobile_coupon_check._cxn1id.pdfIn PDF document text
    • https://cdn.sqhk.co/jasamomedam/QgfAzq9/gsmarena_compare_camera.pdfIn PDF document text
    • https://cdn.sqhk.co/busibelifiv/ecDjbjb/debetefolomuwo.pdfIn PDF document text
    • http://italylife.pro/38331173370ex48p.pdfIn PDF document text
    • https://cdn.sqhk.co/rosafipex/3ajfjb0/50294624744.pdfIn PDF document text
    • https://cdn.sqhk.co/nibubovixif/jagcjdW/new_alphabet_song_lyrics_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452594/normal_5ff66ceb26039.pdfIn PDF document text
    • http://distornyup.site/bujibirugeal4i3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410222/normal_5ffe532723eac.pdfIn PDF document text
    • http://rezonansmusic.com/2054243853jfdgu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420588/normal_5ff833ea7e21e.pdfIn PDF document text
    • https://cdn.sqhk.co/zamokaxu/hjfhfgi/fujasisebafafuzibiti.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/gevqEKk/skerries_motorbike_racing_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/dumadomizore/Pmo5gdK/52475184005.pdfIn PDF document text
    • http://mon-cmb.best/nofumineroramogogazajg044.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/fRdijib/vejulubomorevixuwerapig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428039/normal_5fdb605d7032f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE809 5704 bytes
SHA-256: 70cf65bfde1476e2a993f158c0f377692d4aebbc19725307a6df489dfc76cab9
font_01_sfnt_off0000fb57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB57 10920 bytes
SHA-256: b9f578a41a95d3e9de7444fc62e60f98845c49caa51693b0496ebc7ab7d5aae4