Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7f3ec5189f11971…

MALICIOUS

PDF

68.2 KB Created: 2021-02-27 19:25:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7c6c0d884bb6c6126714858a2398beb1 SHA-1: 9c2cc7bc84f77455151535f82d4d63617e6989a1 SHA-256: f7f3ec5189f119717b4f5a5f64570e534aaaf282e9e0dd68d4dd854ef309b8a5
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://golowaki.ru/award?keyword=singer+touch+and+sew+600e PDF link annotation
    • http://weareanonymous.org/taboniguwukajowodoguvexetv03jz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416150/normal_5fe1270fb5ba7.pdfIn PDF document text
    • http://kujunat.medianewsonline.com/takejanabajomoneligoludu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469106/normal_5fec82519fa0e.pdfIn PDF document text
    • https://cdn.sqhk.co/zegareguw/agghjji/divax.pdfIn PDF document text
    • https://rawesare.weebly.com/uploads/1/3/3/9/133997405/buvowujevidita.pdfIn PDF document text
    • https://juruditusevowe.weebly.com/uploads/1/3/5/3/135329261/tivavevane_nozenofe_zolanikimowowu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489404/normal_5fd80ac702718.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384164/normal_6006aeeead62e.pdfIn PDF document text
    • http://indital.fun/stay_alive_apocalypse_gameplayigbda.pdfIn PDF document text
    • https://cdn.sqhk.co/dugixikisim/Drhaggh/ocean_sounds_relax_and_sleep.pdfIn PDF document text
    • https://gulikefesagigal.weebly.com/uploads/1/3/5/3/135303577/4226367.pdfIn PDF document text
    • https://rofovotojoroko.weebly.com/uploads/1/3/4/8/134878837/2661934.pdfIn PDF document text
    • http://remontlegko.info/pozerigalnu22.pdfIn PDF document text
    • https://cdn.sqhk.co/vudemijugamu/vIgdiaK/pokemon_showdown_bot_commands.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_off0000cd67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD67 5660 bytes
SHA-256: a3bdc2ad4aa3034e1d22cbd75059024b78084645f6c6fd4b54ca19b51f00f0a9
font_01_sfnt_off0000e0b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B4 10412 bytes
SHA-256: 0cba7b5d588c9143f62e384abb6e2f9941d64186c52f486290d419b4ff112052