Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ffdb79fbea48118…

MALICIOUS

PDF

74.3 KB Created: 2021-02-03 14:05:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d8b9ac381f96c1162ea8497416256981 SHA-1: 564c196c6502725234ba3b162d0bd3ecfd2b0509 SHA-256: 7ffdb79fbea481186c208af6ea881eb6e6792948f63a8fe4455731c1d27876f9
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://jottigo.ru/aws?utm_term=all+word+family+worksheets+pdf PDF link annotation
    • https://cdn.sqhk.co/rifokinimito/fhijjEA/unicorn_runner_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jivobukafon/qibZjj2/sushant_singh_rajput_all_songs_download_mp3_bestwap.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/hfIxdtO/38732565608.pdfIn PDF document text
    • https://cdn.sqhk.co/xukeposudexo/fhh0STw/86858747246.pdfIn PDF document text
    • http://cupe1.ru/evangelio_apcrifo_de_juanjro9f.pdfIn PDF document text
    • http://forecast.bet/mimpi_digigit_ular_artinya_apar4zkk.pdfIn PDF document text
    • http://sweetmeet.online/sticker_joker_whatsapp_20192vm65.pdfIn PDF document text
    • http://apsmall.space/gufimigigijojubizute7ubd.pdfIn PDF document text
    • https://cdn.sqhk.co/daboxazile/gei0Oih/93197877235.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/fuwawibu/angular_5_form_example_with_validation.pdfIn PDF document text
    • http://fudewalazakukug.epizy.com/cargo_transport_unit_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/auction_website_template_html.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/betternet_4._4._0_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/18122642475.pdfIn PDF document text
    • http://babokad.epizy.com/herniated_disc_medical_report.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_off0000e5cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5CB 5528 bytes
SHA-256: 014d79db02ec7d1c6baebb4e88d0ce1df3f9b4604110cbb424d0d33afe576954
font_01_sfnt_off0000f889.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF889 10588 bytes
SHA-256: 9de0d08bf47b39bf582894f725827a830e3038198ee65ba03ce94d40bb7bd51f