Malicious PDF — malware analysis report

Static analysis result for SHA-256 63e3f5d1a40ae414…

MALICIOUS

PDF

72.2 KB Created: 2021-03-05 20:36:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 53fc5ffc2323daa29e9aa19f6b81f039 SHA-1: ae7cef80620bdc27dfa370765cebd2e8eb3cdf83 SHA-256: 63e3f5d1a40ae414ba487a27539b1d7d40f2dd839a9eaf6ed0f78a7d8e39b29b
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://crophysi.ru/wix?keyword=tomtom+spark+manual+pdf In PDF document text
    • http://fajiriduxir.medianewsonline.com/how_to_update_s8_software.pdfIn PDF document text
    • http://tokexal.medianewsonline.com/90537757103.pdfIn PDF document text
    • http://mitatizizuje.mypressonline.com/54065655657.pdfIn PDF document text
    • http://jaxagogilexet.sportsontheweb.net/what_is_lexile_reading_level_chart.pdfIn PDF document text
    • http://sakhavto.ru/how_to_pair_anker_keyboard_to_iphonexiby9.pdfIn PDF document text
    • http://fajiriduxir.medianewsonline.com/51718933075.pdfIn PDF document text
    • http://pimifawimonidij.mywebcommunity.org/what_does_frankenstein_represent.pdfIn PDF document text
    • https://biwoxigaluna.weebly.com/uploads/1/3/2/6/132681579/7df017621a.pdfIn PDF document text
    • http://lnstagram-office.com/wallpaper_flower_rose_photo7onsx.pdfIn PDF document text
    • https://kunewosixur.weebly.com/uploads/1/3/4/3/134393142/sitemitonepil_kagixo.pdfIn PDF document text
    • http://xafopawiki.medianewsonline.com/what_comes_on_burger_king_chicken_sandwich.pdfIn PDF document text
    • https://toxupenowa.weebly.com/uploads/1/3/4/0/134042648/7035440.pdfIn PDF document text
    • https://rexawalifutox.weebly.com/uploads/1/3/4/4/134458468/xogif.pdfIn PDF document text
    • https://lorumotavur.weebly.com/uploads/1/3/4/6/134693112/zagokepuji.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://eaae50f7-3b1c-4f1b-9b3c-e2a48377569d.filesusr.com/ugd/b96e41_d42539cd9324427db39b6e5b81e3c58f.pdf?index=trueIn PDF document text
    • https://459ec6dd-5b69-4322-a182-74abbfaa0e48.filesusr.com/ugd/221eaa_15b7f4fb3aa4454e8c5e81d75b50ec2e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8df5e982-f667-4946-bc63-e670dcff7c36/pixizivano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5efcc906-b3e2-4adf-9ffd-931c992c5772/76490924081.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af18755d-1e6c-4c63-b233-4b1439236d82/71883271563.pdfIn PDF document text
    • https://fb413987-6e77-4bf1-aaa6-e97eb550fbee.filesusr.com/ugd/108936_d96fc771281e42fda6193dde8dbd3d52.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac34e4ab-1ca5-43bc-83c4-438da3699308/57102702047.pdfIn PDF document text
    • http://bexukavibume.myartsonline.com/98881723620.pdfIn PDF document text
    • https://6f8cb219-4830-455d-9ced-b55e65700e85.filesusr.com/ugd/fd30ac_b8bb782b6bbc497785c574a9f1dc57c3.pdf?index=trueIn 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_off0000de90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE90 5200 bytes
SHA-256: 585a83a06fc5e8af4e334e898b69ddc77b59ce78abbf21122a022ee761e6a18e
font_01_sfnt_off0000f028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF028 10316 bytes
SHA-256: 8e3da471394048b7c88dcbe2c1a752f6ba646967974b5799d2e97ed098d60ab1