Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2c31a4a76a6fa96…

MALICIOUS

PDF

37.7 KB Created: 2020-10-09 04:42:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 82b22d216c571e6118247ccdddead62f SHA-1: e5ca14d91ccd4380833ee2d8ceaf297962e849d3 SHA-256: e2c31a4a76a6fa96c2aa17cca7d4f14c00091998556aa1827b9cfab5fc7ba908
182 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • 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.
  • 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://ggtraff.ru/strik?keyword=beowulf+analysis+and+summary+pdf In PDF document text
    • https://site-1039361.mozfiles.com/files/1039361/59199597114.pdfIn PDF document text
    • https://site-1042634.mozfiles.com/files/1042634/fowokemi.pdfIn PDF document text
    • https://site-1040892.mozfiles.com/files/1040892/23701076417.pdfIn PDF document text
    • https://site-1036644.mozfiles.com/files/1036644/zifafosis.pdfIn PDF document text
    • https://site-1041926.mozfiles.com/files/1041926/simanawejopaferosubi.pdfIn PDF document text
    • https://site-1040097.mozfiles.com/files/1040097/97170183831.pdfIn PDF document text
    • http://xidewer.vonfunkhouser.com/uploads/1/3/2/6/132681556/b35848b5a001.pdfIn PDF document text
    • http://files.lovebatonrouge.com/uploads/1/3/1/0/131070581/5627882.pdfIn PDF document text
    • http://files.red27jewelry.com/uploads/1/3/0/7/130775052/2780084.pdfIn PDF document text
    • http://vedunafes.orono1966.org/uploads/1/3/0/7/130775823/woloju-xavutukeg-xuvagas.pdfIn PDF document text
    • http://files.sundancehorsemanship.com/uploads/1/3/1/4/131453456/6b30de0.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/1/0434/1068/6113/files/youll_be_back_hamilton_lyrics_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7753/2824/files/feel_it_still_roblox_music_id.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4087/2350/files/87764833044.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000701d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x701D 5432 bytes
SHA-256: 6a9eb247d396bef6e82db4074fd4d052b4e51e6c0abf955486e234acaf25e493

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