Malicious PDF — malware analysis report

Static analysis result for SHA-256 5047d797f0269cd6…

MALICIOUS

PDF

71.5 KB Created: 2021-02-07 10:55:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5227e51d79b3ef437c7d80863fe67867 SHA-1: f116d954b4b4b5b3ac2759cb48efdd1555d97043 SHA-256: 5047d797f0269cd6a8bcf0ddbe48207cc1601872bbcfb3231577535d364c33e1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/aws?utm_term=android+10+oneplus+6+xda PDF link annotation
    • http://podipotekoi.ru/britney_spears_songs_mp3_free_download_baby_one_more_time1naer.pdfIn PDF document text
    • https://cdn.sqhk.co/tinulafi/GgcYiay/31565928571.pdfIn PDF document text
    • https://pivuwexigika.weebly.com/uploads/1/3/4/3/134320842/e122c0b7cadc.pdfIn PDF document text
    • https://cdn.sqhk.co/lokutibu/shakhak/vojavesadamutapaje.pdfIn PDF document text
    • http://vovpomnim.ru/wiwapavoo5s3n.pdfIn PDF document text
    • https://cdn.sqhk.co/sixepatexup/sjjiejY/11171607240.pdfIn PDF document text
    • http://blockhcain.host/povatagalujuzazafomokewi2411l.pdfIn PDF document text
    • https://jokasagumejede.weebly.com/uploads/1/3/1/0/131070006/756f8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381344/normal_601b2a0d3259b.pdfIn PDF document text
    • https://cdn.sqhk.co/fapewejav/gfrhfii/45189158332.pdfIn PDF document text
    • http://vittorguxx.site/8192502473355te8.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/dgzOVhg/toweneberopenuk.pdfIn PDF document text
    • http://hookup755.fun/merigofitusinawavisorubascc9hq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pabenikazugaj.rf.gd/43612286639.pdfIn PDF document text
    • http://rezumasalimod.epizy.com/uniform_crime_report_meaning.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_off0000dae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAE3 5360 bytes
SHA-256: 44d01726c198d866363603405d66383d86c95714e8d2b5a844aaab618cea4ff4
font_01_sfnt_off0000ed30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED30 10588 bytes
SHA-256: 09c92198cab7283bf9b89516063f3ee81684586ad307ef0f2f09dff78d8e270f