Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae8e43aa0aa0f5ee…

MALICIOUS

PDF

72.7 KB Created: 2021-03-07 02:56:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5ee998895aee1ce4009fb0e7d13dac60 SHA-1: fac05cf88fe71b872f4d2766f0abb1f4e8fe7116 SHA-256: ae8e43aa0aa0f5ee25a144ee8aa05dc3f1025dc3340283eda51a5dda11fe74cb
186 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
  • 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://druttle.ru/award?keyword=basic+chart+patterns+technical+analysis+pdf PDF link annotation
    • http://lovelyhouse.online/miguel_serrano_esoteric_hitlerismxqxpc.pdfIn PDF document text
    • http://mxbur.fun/rules_of_parallel_lines_in_trianglesagwsg.pdfIn PDF document text
    • http://mivetys.xyz/98076075181zlpfl.pdfIn PDF document text
    • http://winoraama.site/38503342135x8ps7.pdfIn PDF document text
    • http://thefortykuti.com/vscode_python_format_pep8ql2ap.pdfIn PDF document text
    • https://fukorolavo.weebly.com/uploads/1/3/4/6/134639224/kamom-sutejamalujuwip-pexekavaw.pdfIn PDF document text
    • https://fikadodovawewa.weebly.com/uploads/1/3/4/3/134320255/zuganid.pdfIn PDF document text
    • http://vovality.club/binary_addition_and_subtractionmigrz.pdfIn PDF document text
    • https://rezezeveg.weebly.com/uploads/1/3/1/8/131871466/6582bb4c3d3a443.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/10d3af9f-894d-42a1-9b5e-f63140fb5ca9/teologia_biblica_y_sistematica_myer_pearlman_editorial_vida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d0b3a7d-11a5-453e-b18b-ee7ac288130a/matlab_store_function_handle_in_array.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fe7ba00-5eb5-40e6-9ab1-387c3f373c53/tixesezigikuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85846d0d-3ace-4e92-aba5-39cb14a1bef0/nadigag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5df848d0-f0aa-4932-b98e-04b9c6867489/pretty_little_liars_season_4_episode_13_full_episode.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55af7275-01fa-4894-afe0-8de97dd6c977/digitech_jamman_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79171048-781e-4fec-bb59-f09b7d2e98e2/86057303315.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4eb4407-82ab-4e42-9c53-0fb8759c8d6d/55254596561.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_off0000e0dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0DC 5396 bytes
SHA-256: dcd76a68090a01c09eaa5103ffe4d7db89725a8e454ae69fdb036a40322ad80a
font_01_sfnt_off0000f33c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF33C 10076 bytes
SHA-256: b91d844d5a69931918f7b142c97217d79c276bf07402a3e89eaef2cd6c8029eb