Malicious PDF — malware analysis report

Static analysis result for SHA-256 1065717c47b0647d…

MALICIOUS

PDF

70.1 KB Created: 2021-02-07 15:43:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1c2608b6fee03c9a3a2b4506fc440ed3 SHA-1: 8f1c3410039244187a6c77c550c711c1e635e550 SHA-256: 1065717c47b0647dc82ef53194bf65b3177884ac6f99ae5d0ab78d9bef703662
192 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=quality%20inspection%20report%20format%20in%20word In PDF document text
    • https://zemedabumudog.weebly.com/uploads/1/3/2/7/132712209/kutuxorojiza-tawowi-kodiwufewulif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503279/normal_60181e02e3ccf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476434/normal_5fdf9da948df5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401515/normal_600188ceecbcc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390074/normal_60101080eb455.pdfIn PDF document text
    • https://betedodokadez.weebly.com/uploads/1/3/4/8/134882186/72978.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403946/normal_5fcfa7e8c1583.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/zijivevip/bowers_and_wilkins_zeppelin_mini_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/45246265573.pdfIn PDF document text
    • http://janaradoru.rf.gd/28890639166.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/jemesevutogopizewewunisum.pdfIn PDF document text
    • http://bamasagure.epizy.com/dalefuwevafumo.pdfIn PDF document text
    • http://toxawilel.epizy.com/xigomamamipigoziwewares.pdfIn PDF document text
    • http://merojupamen.epizy.com/40963721889.pdfIn PDF document text
    • http://dinelak.rf.gd/bullet_bike_hd_photos.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_off0000d3c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C0 5556 bytes
SHA-256: 7b153ed76772e04dd4f4374675b6282026408c043e44a00a03182372ff1f91c7
font_01_sfnt_off0000e6a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A6 10904 bytes
SHA-256: b75bf653cb4614f57575b2c9e547a8b9ac7a2ecdbccb8678c88cdebc9d6d9cf6