Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a8ae123ccc7bfa8…

MALICIOUS

PDF

71.2 KB Created: 2021-02-15 16:53:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2cb71d1afb6a82f383042833b5dcf612 SHA-1: 12ddb024c69adc2a05ce9fdb3b99c776ec4dfdae SHA-256: 9a8ae123ccc7bfa87d39eba4ebf2ee0f2e6d2cc15fef2e61cbc56aff50e1ec68
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://maypoin.ru/wix?keyword=horizon+ex+59+elliptical+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4490366/normal_5fd776a0459aa.pdfIn PDF document text
    • https://cdn.sqhk.co/tosobulig/zIhdGha/55936358148.pdfIn PDF document text
    • http://doordash.link/photo_transfer_app_bitwise_itunescno1a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380090/normal_5ffca5650b7f0.pdfIn PDF document text
    • https://cdn.sqhk.co/venifirub/Bhi4CwC/shark_running_shoes.pdfIn PDF document text
    • https://xelopapet.weebly.com/uploads/1/3/0/7/130775154/f6b7a7.pdfIn PDF document text
    • http://findfreegirl.com/83729896892bmzrc.pdfIn PDF document text
    • http://giocodigital.fun/i_need_to_speak_to_your_manager_gifprpcx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500878/normal_5fe2e09b18201.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/giiinj5/89193935137.pdfIn PDF document text
    • http://repair-foto.ru/suxuraiqy0h.pdfIn PDF document text
    • https://kilobabax.weebly.com/uploads/1/3/1/8/131856311/d5c8c.pdfIn PDF document text
    • https://cdn.sqhk.co/xodakebebit/b1U3hfW/sling_drift_high_score.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/e2ihchg/senaj.pdfIn PDF document text
    • http://kinoxca.xyz/blockbuster_song_naa_songsmjhvh.pdfIn PDF document text
    • http://getbuiss.online/employment_certificate_letter_formatlna1s.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/sizadagazagaj/nevixezafagezufebisaxo.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/boss_naa_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/91232541244.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_off0000d9e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E8 5260 bytes
SHA-256: 33acae3eaf62871429aa6644c9da8ed8cd8ad3fa5da2b91990577b2956452e62
font_01_sfnt_off0000ebc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBC4 10436 bytes
SHA-256: 8445250dd921d9621fd12210d9806041483c32d77bd14a386f4e09230a2a9b25