Malicious PDF — malware analysis report

Static analysis result for SHA-256 483af36792a8acd3…

MALICIOUS

PDF

70.3 KB Created: 2021-02-23 07:37:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 065074097fcbf0f8c6cfbe5e45e68568 SHA-1: dcf53c2dfa7fb7d62b6f06d1d224096fbaad289b SHA-256: 483af36792a8acd3d5445ab7e6cb7b7e86ff3b3d5af01027512247903b6e02b1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/wix?keyword=2+player+reactor PDF link annotation
    • https://xisegebimir.weebly.com/uploads/1/3/4/3/134340076/d65c38120419c.pdfIn PDF document text
    • https://vadutebo.weebly.com/uploads/1/3/4/8/134889136/a0265.pdfIn PDF document text
    • http://taptopbot.com/jon_snow_and_ygritte_episode_guide22sqx.pdfIn PDF document text
    • http://wtia.space/cosmopolitan_las_vegas_restaurantsbmf38.pdfIn PDF document text
    • https://lajisoxe.weebly.com/uploads/1/3/4/4/134435468/nufiv.pdfIn PDF document text
    • https://rivewatot.weebly.com/uploads/1/3/3/9/133999312/xufisupasaso.pdfIn PDF document text
    • http://reweder.site/how_to_connect_hp_deskjet_f4580_printer_to_wifi4gm2z.pdfIn PDF document text
    • https://vabusidi.weebly.com/uploads/1/3/4/7/134765039/1309739.pdfIn PDF document text
    • http://bemowasogikoj.22web.org/barikuder.pdfIn PDF document text
    • https://vorajazelilax.weebly.com/uploads/1/3/1/4/131407498/9317742.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sevojaninap.rf.gd/92242504320.pdfIn PDF document text
    • http://guvewenif.epizy.com/amiduos_full_crack_64_bit.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_off0000d814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD814 4888 bytes
SHA-256: 57749d4f3d877a5d512e4138961cca55dd12d3c198d8df08ae87237f03807f1e
font_01_sfnt_off0000e8d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D0 10568 bytes
SHA-256: bb252d91369ccfed4caf836a8ce94ef720ac6e7b7dee21463216cb1dd94af730