Malicious PDF — malware analysis report

Static analysis result for SHA-256 755756340253b9f0…

MALICIOUS

PDF

67.7 KB Created: 2021-02-18 13:52:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 828814b5194a8ff2ec27c3b42c37f52c SHA-1: 475a1ec71b1b9cfcf46014d73434d5a8d2609fb3 SHA-256: 755756340253b9f0ba061229a563c5056a07959615c91951dd6f696a74ad0485
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://baarspo.ru/wb?keyword=hello%20von%20adele%20deutsche%20%C3%BCbersetzung PDF link annotation
    • http://8gusevshop.website/satowotadubizagojopimixsv2o.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469837/normal_5fcf48f7aac03.pdfIn PDF document text
    • http://simultaneously.space/best_hillsong_worship_songs_ever49joe.pdfIn PDF document text
    • http://org-fruit.space/guzarefetevapvyk16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476577/normal_5fd89731e8752.pdfIn PDF document text
    • http://ostanni.fun/86795394733nh6m6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366041/normal_6010fa8c22436.pdfIn PDF document text
    • http://radanukodufam.22web.org/tulja_bhavani_hd_images_free.pdfIn PDF document text
    • http://biweekamnf.com/34203619138ld1u6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486213/normal_60110e6055e13.pdfIn PDF document text
    • http://temivenoni.iblogger.org/ati_radeon_hd_4850_manual.pdfIn PDF document text
    • http://expressvpn.store/64744624307ozxnp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fiwujugisijema.epizy.com/77808634049.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/champions_league_2019_fixtures.pdfIn PDF document text
    • http://zewalevedesibab.epizy.com/sum_41_walking_disaster_lyrics_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_off0000ca1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA1D 5532 bytes
SHA-256: 9a76caf44b2a550260d92cbe666999f7cece92a98a0af1b163c687acbbfca048
font_01_sfnt_off0000dcbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCBB 10348 bytes
SHA-256: f684e21c4ce88cfa8ebb0f1ff7f8327e575d37645fe2b73cfaffea6b0c76eef2