Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d175b5f2ce29a96…

MALICIOUS

PDF

61.6 KB Created: 2021-02-10 18:33:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9f7a8a5e523a3760fab09513925be5e1 SHA-1: 6d8462770d1565ad268e44f6aaf25ca8b8297811 SHA-256: 2d175b5f2ce29a9655f717cf94b4128158b2bb7b7d2ed7edfdcd3ac7655401fc
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/aws?utm_term=l2+interlude+mystic+muse+guide In PDF document text
    • http://storeplus.pro/gilifisogaxarabuwdhvd.pdfIn PDF document text
    • http://santaparker.store/99918721285esegy.pdfIn PDF document text
    • https://balesiloruj.weebly.com/uploads/1/3/4/6/134671801/zefuro-molalizaju.pdfIn PDF document text
    • http://snatural.space/66602442871d41c9.pdfIn PDF document text
    • https://dadurafiwazozu.weebly.com/uploads/1/3/4/7/134768329/c553c19c7e70.pdfIn PDF document text
    • http://shopee24.site/bizazixipku4n.pdfIn PDF document text
    • http://airbin.top/fastest_diesel_tune_pro_series_drag_racing4mubf.pdfIn PDF document text
    • http://makedctl.site/wonifafosikassrnu.pdfIn PDF document text
    • http://mxbur.fun/66005308548fiwjy.pdfIn PDF document text
    • http://alania365.ru/487077077179i3tt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474750/normal_5fd74299ddfff.pdfIn PDF document text
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/3018050.pdfIn PDF document text
    • https://bumobuzeki.weebly.com/uploads/1/3/4/4/134477779/f9de1d99ff9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jiwenufaxo.epizy.com/alif_novel_episode_12.pdfIn PDF document text
    • http://lozebaloporan.epizy.com/aluminum_sheet_metal_30_gauge.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_off0000b4c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4C6 5224 bytes
SHA-256: f19f1df62a6334340fdc919acb49fc356fa6d8beb138d576297983d66f75f95a
font_01_sfnt_off0000c688.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC688 10228 bytes
SHA-256: 242e6aae48d8890f25fc4f557651380f6c9af66f26208210598eaf5bfa811f61