Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7463aac167091b1…

MALICIOUS

PDF

41.8 KB Created: 2020-10-06 10:33:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a8caf5bdc185869b59075f24ef43d9e8 SHA-1: 279b62ad174c39bfb1c10256bcde0dca694a8345 SHA-256: d7463aac167091b108dc971ecf896ec94392d611de4f3e9e5ab9aabe2a05ff4e
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://cctraff.ru/strik?keyword=shadow+fight+3+apk+obb In PDF document text
    • http://files.chuckferrissports.com/uploads/1/3/1/4/131437046/tunif.pdfIn PDF document text
    • http://futed.marsgarageuae.com/uploads/1/3/0/7/130776246/ziwenibigurit-tobuk.pdfIn PDF document text
    • http://files.ihpawards.com/uploads/1/3/1/6/131607027/2967527.pdfIn PDF document text
    • http://gabulomib.christopherparizo.com/uploads/1/3/1/4/131437502/rotijarus.pdfIn PDF document text
    • http://devunomi.fastelectricalrepair.com/uploads/1/3/2/3/132303382/vorinetu-nagonamoxisapik-tuvomezibe.pdfIn PDF document text
    • https://site-1039577.mozfiles.com/files/1039577/94326255394.pdfIn PDF document text
    • https://site-1041486.mozfiles.com/files/1041486/5697022490.pdfIn PDF document text
    • https://site-1036838.mozfiles.com/files/1036838/37027572128.pdfIn PDF document text
    • https://site-1041944.mozfiles.com/files/1041944/39268615472.pdfIn PDF document text
    • https://site-1039566.mozfiles.com/files/1039566/rabiwufibogameroxuboka.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4598/9799/files/30700612616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/9671/4650/files/59980310613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9330/3204/files/rar_apk_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/0398/8126/files/jerry_rice_college.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2071/6701/files/zatesuzupenufatuka.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_off00006466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6466 5560 bytes
SHA-256: 8d20d8c3eee5a8c37e2aa7d38f817094deca6eec6bd357c821daf5b94557a78e
font_01_sfnt_off00007768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7768 10280 bytes
SHA-256: e2bc3a8343ac195ac258cf1a7a0b3984fe3fbd928fedf89524ed7c801ff91b85

Open this report in the interactive analyzer, or submit your own file for analysis.