Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ea1fe26e2801b9a…

MALICIOUS

PDF

69.0 KB Created: 2021-02-22 05:42:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cb1855e2eed1a38ca83441668598792c SHA-1: 6f48c1835a5849f2e330aa060044e97f0d9972bf SHA-256: 6ea1fe26e2801b9a9539775ebd695bc080d28b53ae90df7b0d61ecba33ac195c
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/wix?keyword=tiktok+apk+download+new+version+2020 PDF link annotation
    • https://cdn.sqhk.co/tudobele/gimihjU/mupokalokoxa.pdfIn PDF document text
    • https://cdn.sqhk.co/wunokebewoz/hgejfai/vmware_drag_and_drop_not_working_mac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492240/normal_5fec797415a34.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412413/normal_5fe73f27209a3.pdfIn PDF document text
    • https://cdn.sqhk.co/lorotukogof/hajgjig/6976603219.pdfIn PDF document text
    • https://cdn.sqhk.co/dubutemaruxu/hYx4YXf/pilot_the_time_flyers.pdfIn PDF document text
    • http://the-job.ru/win_bet_app2dvso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459914/normal_6032fa29980db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382948/normal_5fd816fab9b05.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426832/normal_5ffefb2c4d896.pdfIn PDF document text
    • https://cdn.sqhk.co/dowusutitozi/jdGQbAG/togalusivutukobinavow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460045/normal_6015c23324a54.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/widofafane/wonunexosemobowukeze.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/would_have_been_or_should_have_been.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_off0000cfbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFBD 5392 bytes
SHA-256: a91b6adffff3cb0ccee5c1ba5e8c2f55fea6a561bf019ea03ee722b6bb8d2b5f
font_01_sfnt_off0000e23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE23F 10828 bytes
SHA-256: 834c13537332988bfc95d4783ab10287440f956b4f673f2cb49191dc72013d0d