Malicious PDF — malware analysis report

Static analysis result for SHA-256 540a5c8a98405791…

MALICIOUS

PDF

51.8 KB Created: 2020-10-01 05:52:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 86ae23ec6e1036aadd50322d10175682 SHA-1: ff48addea2af4489f9523aab875d79ba176a0293 SHA-256: 540a5c8a9840579170d9411ae328af9cb22ca20fdde985233ea9d5276cf7027d
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=malayala+manorama+news+paper+today+malappuram+pdf In PDF document text
    • https://site-1038548.mozfiles.com/files/1038548/girel.pdfIn PDF document text
    • https://site-1037214.mozfiles.com/files/1037214/dumenikuzadiwevuvorese.pdfIn PDF document text
    • https://site-1037221.mozfiles.com/files/1037221/miwivozufavewibenekimojem.pdfIn PDF document text
    • http://files.banerjeesharmistha.com/uploads/1/3/1/4/131409275/witepoziku.pdfIn PDF document text
    • http://wuvosu.meanmuleonline.shop/uploads/1/3/2/8/132815015/finet-jupideperepifes.pdfIn PDF document text
    • http://files.catranchrescue.org/uploads/1/3/0/8/130873736/welozivolek.pdfIn PDF document text
    • http://gadug.lightfoxstudios.com/uploads/1/3/1/0/131071277/dotumopile_zuxarobegeja.pdfIn PDF document text
    • http://files.lakelehmanmetz.com/uploads/1/3/2/3/132303354/jinaxafugos.pdfIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn 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/1/0440/6083/6005/files/bawedaradene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3661/3544/files/73941597321.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/zinaxile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f49ac8e-2620-4d00-ad03-b4614be3566a/69425313015.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f75c9eb-418e-400e-b6dd-5a5140713543/75139217391.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
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00006b6a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6B6A 17820 bytes
SHA-256: a9447cd1859167974ab638380604988447a4b47e07d66de4201e02842a8b7504
font_00_sfnt_off00005914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5914 5388 bytes
SHA-256: 5bcdc3d2a7bb9a36715daea9cfb843d77e10a765c4343f82520f5888930973e9
font_02_sfnt_off0000a14b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA14B 9488 bytes
SHA-256: 8eb91bee239d96de36f7942c5298630ce86b56115491bdd51105ebcdd2eaccf3

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