Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda63eb4b9871559…

MALICIOUS

PDF

77.4 KB Created: 2021-02-28 00:27:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4a01f082f71be93e5b2f3b9043324fd8 SHA-1: e2b086d2fb14dd92c6ad7d532ef5b44cc59ded58 SHA-256: fda63eb4b98715590d7a38cd291c3cc36860c858162ab60cd39c19c4ba2aea1b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://dugedepap.ru/award?keyword=champion+generator+9000+starting+watts PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4415077/normal_602b27d48154e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478430/normal_5fd7c37a62c42.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371495/normal_601306892c3ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380083/normal_5fd3ceaf1bf67.pdfIn PDF document text
    • https://zasipirowi.weebly.com/uploads/1/3/4/2/134266189/nuzufemamejibog-devubiko-supidedel-bajebaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381962/normal_60194cbe7dcf0.pdfIn PDF document text
    • https://cdn.sqhk.co/pigevikuwi/gghdha7/ximawigenunofamijav.pdfIn PDF document text
    • https://cdn.sqhk.co/bivuwusim/gdWieit/vibijavoxipoziwomawam.pdfIn PDF document text
    • https://cdn.sqhk.co/mudemodox/6igB2i5/81036791349.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472186/normal_5febed4875fc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368964/normal_5fe828675bff7.pdfIn PDF document text
    • https://beborojefep.weebly.com/uploads/1/3/0/7/130739591/3da07321cc472.pdfIn PDF document text
    • https://naxizugopigonav.weebly.com/uploads/1/3/1/4/131408516/voxunuguwas-xonanala.pdfIn PDF document text
    • http://jofufuzutaki.22web.org/jupufewesuwaminedu.pdfIn PDF document text
    • https://cdn.sqhk.co/nanijamu/uiiibOV/glitch_camera_app_download.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/dojivewobasuval/10152136761.pdfIn PDF document text
    • http://jafexobaxe.epizy.com/25901665896.pdfIn PDF document text
    • http://xufazep.epizy.com/ingenuity_baby_rocker_pink.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_off0000efcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCC 5496 bytes
SHA-256: 01840efcd48143210295ddd56a7c2e9df5ce7fc8194cc4cc8d20e1568a77cb6f
font_01_sfnt_off0001025f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1025F 10756 bytes
SHA-256: b01a350789c60f66deb8f57ba793a908ee0963e0b7b12f35e347b268a3b177ce