Malicious PDF — malware analysis report

Static analysis result for SHA-256 70d337952c7c2d93…

MALICIOUS

PDF

67.5 KB Created: 2020-11-11 04:34:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 3e3482d390a892d5a1c4473c45a58820 SHA-1: 1bac7768c21078df615e2a4da881a9add64eeb17 SHA-256: 70d337952c7c2d933be6bcc78e3022925bfa93c8c6aab58b6ad7fe22c6d117b4
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://traffmen.ru/aws?keyword=the+bread+bible+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379387/normal_5f98b30a84bef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369142/normal_5fa59a9237bc5.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/kipubakamewez_jusipaxelawu_ruxakog_jeveninasuvugis.pdfIn PDF document text
    • https://fewefemuge.weebly.com/uploads/1/3/4/3/134372507/5687201.pdfIn PDF document text
    • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/xalipubow.pdfIn PDF document text
    • https://pibazafefudo.weebly.com/uploads/1/3/0/7/130776509/34542c3.pdfIn PDF document text
    • https://xuxixoxeniti.weebly.com/uploads/1/3/4/5/134585484/nusilozolid-bewojiwese.pdfIn PDF document text
    • https://rijizego.weebly.com/uploads/1/3/0/7/130776487/9e5d29.pdfIn PDF document text
    • https://nifadajenekipib.weebly.com/uploads/1/3/4/3/134305148/3631845.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e73a61c-d404-4ecc-b856-45560585c377/rigeditazelapugegolinu.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_off0000c9dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9DD 5040 bytes
SHA-256: 69f672b004b9f2294ea8ae624bc4f7bd85e661092ba739adb7a8864e72657d73
font_01_sfnt_off0000daf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF1 11656 bytes
SHA-256: ba889c714bdbe3119c0357a19fdd87208b95cd7343778c4d5208736fd483ae22