Malicious PDF — malware analysis report

Static analysis result for SHA-256 1328659ba5d47dd7…

MALICIOUS

PDF

74.4 KB Created: 2021-02-27 23:27:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8706c9a70206dc5d752c1dba6ada1fcf SHA-1: f725bbb39bdcbbc667081fd79eea0c30b2184508 SHA-256: 1328659ba5d47dd75f953cb7194376ac326f089e9452a826a22d48af6ca474d5
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://nipisod.ru/award?keyword=good+meeting+ice+breaker+questions PDF link annotation
    • http://movawizaxaxato.mywebcommunity.org/david_klein_organic_chemistry_3rd_edition_answer_key.pdfIn PDF document text
    • http://nudistoff.club/organisms_in_an_ecosystem_that_first_capture_energy_calledjomxm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460233/normal_60164d87b5bef.pdfIn PDF document text
    • http://tulakijumipad.22web.org/sojogem.pdfIn PDF document text
    • https://cdn.sqhk.co/biposuba/ijeiaHh/deer_hunter_2018_download.pdfIn PDF document text
    • http://ita-yog.space/kezepidobejudijedutmra3h.pdfIn PDF document text
    • http://olivamebel.com/pdf_converter_mac_app_storeja8qw.pdfIn PDF document text
    • http://xiwakaravivomik.scienceontheweb.net/how_much_does_a_program_manager_make_at_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/kifavubivelo/cijeOd1/24288708536.pdfIn PDF document text
    • https://cdn.sqhk.co/petawelesup/hgibvRH/rorisurulenexejufijelozak.pdfIn PDF document text
    • http://tesocoin.online/69191092933tnh65.pdfIn PDF document text
    • http://esagafow.fun/xujiranuvulortkmc2.pdfIn PDF document text
    • https://cdn.sqhk.co/butuxolevu/gibhchi/lizowesedowivobupedapuguz.pdfIn PDF document text
    • http://omynutural.space/45545546782oa7rj.pdfIn PDF document text
    • http://tijudozi.scienceontheweb.net/how_to_fix_toro_self_propelled_mower.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_off0000e72d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72D 5588 bytes
SHA-256: 8fc2cd1c6a31cbe8e1322eb3be053d004614c8aac8227a648782fb7277557476
font_01_sfnt_off0000fa13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA13 10268 bytes
SHA-256: adb7bcccfb872fe3030d4f7501351192db93ea57305137b29f72a3f8be1d03dc