Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2bc45b6f3fe018a…

MALICIOUS

PDF

58.9 KB Created: 2021-01-22 10:12:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f816176693c152625c8a8f41e4f02e14 SHA-1: d6598d65291c08d1f4392b56e20a287b40ccd1b9 SHA-256: e2bc45b6f3fe018a3144bb0c69a6907850055e7f130ce9710afcdd017deaa746
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/wb?keyword=visiting%20card%20making%20near%20me PDF link annotation
    • https://site-1168088.mozfiles.com/files/1168088/putagaki.pdfIn PDF document text
    • https://cdn.sqhk.co/tijinujul/5rbR2mB/winking_lizard_beachwood_reviews.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488822/normal_5ff54b4c73142.pdfIn PDF document text
    • https://site-1178820.mozfiles.com/files/1178820/51427299508.pdfIn PDF document text
    • https://cdn.sqhk.co/pusuvizodez/pijzS4u/tibapivifu.pdfIn PDF document text
    • https://site-1171149.mozfiles.com/files/1171149/can_you_escape_the_room_4_level_48.pdfIn PDF document text
    • https://cdn.sqhk.co/gufezitaxato/gEhjzJK/free_gems_dragon_city_2020.pdfIn PDF document text
    • https://site-1246015.mozfiles.com/files/1246015/buditegamo.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/MgifAiT/nasufewiboj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471275/normal_5fee637e7c5f3.pdfIn PDF document text
    • https://tifimiwarefimi.weebly.com/uploads/1/3/4/8/134895051/7461129.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/tudawufed/dejegeri.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/assistant_sales_manager_interview_questions_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/31588292045.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/37176776026.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_off0000ac6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC6B 5256 bytes
SHA-256: 0d1039d08a64bae89a7cd699e007668d15283a14be1d51c8f762beaa4f59c24f
font_01_sfnt_off0000be3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE3D 9564 bytes
SHA-256: e36e3736260efb6cd45c251ee182c3c1a7c8a8de3d0b38ea25047416bc05f4a9