Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef3d00c4fe8b22d0…

MALICIOUS

PDF

26.1 KB Created: 2019-11-09 22:50:05 +00:00 Authoring application: mPDF 5.7
MD5: e1220db84c689132932106b44cf6b378 SHA-1: cab856017ce6f4f110118e409759cef55bba3145 SHA-256: ef3d00c4fe8b22d03de41107c74059fa0a92e6cf4c689e9c85b7e7f8da4b7ad4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. While most of these links are marked as confirmed benign, the sheer volume and the heuristic's name suggest a malicious intent, possibly for SEO poisoning or to redirect users to malicious sites. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9695

Heuristics 2

  • 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.
  • 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 http://cefasfes
    • http://cefasfese.4pu.com/1733730733738736/Never-Chop-Your-Rope-A-Story-Of-British-Columbia-Logging-And-The-People-Who-Logged-by-Joe-Garner.pdf
    • http://cefasfese.4pu.com/1733730732734735/British-Columbia-Spirit-of-the-People-by-Jean-Barman.pdf
    • http://cefasfese.4pu.com/1733730731737739/The-Forests-Of-British-Columbia-by-Cameron-Young.pdf
    • http://cefasfese.4pu.com/2735732734732732/The-British-Columbia-cookbook-by-Eric-Pateman.pdf
    • http://cefasfese.4pu.com/5731735739735733/Military-Identities-The-Regimental-System-the-British-Army-and-the-British-People-C-1870-2000-by-David-French.pdf
    • http://cefasfese.4pu.com/1731738733734733/British-Columbia-A-Natural-History-by-Richard-J-Cannings.pdf
    • http://cefasfese.4pu.com/1730730731734735/Beyond-The-City-Limits-Rural-History-In-British-Columbia-by-R-W-Sandwell.pdf
    • http://cefasfese.4pu.com/1730738733737734/Chop-Chop-Chop-Chop-1-by-L-N-Cronk.pdf
    • http://cefasfese.4pu.com/1731738731738736/Simon-Fraser-In-Search-of-Modern-British-Columbia-by-Stephen-Hume.pdf
    • http://cefasfese.4pu.com/9738732731739/The-Poetics-of-Land-amp-Identity-Among-British-Columbia-Indigenous-Peoples-by-Christine-J-Elsey.pdf
    • http://cefasfese.4pu.com/1731738731738738/Made-to-Measure-A-History-of-Land-Surveying-in-British-Columbia-by-Katherine-Gordon.pdf
    • http://cefasfese.4pu.com/1730730731736730/Cheap-Wage-Labour-Race-and-Gender-in-the-Fisheries-of-British-Columbia-by-Alicja-Muszynski.pdf
    • http://cefasfese.4pu.com/1730730730736733/Making-Native-Space-Colonialism-Resistance-and-Reserves-in-British-Columbia-by-R-Cole-Harris.pdf
    • http://cefasfese.4pu.com/1733730732735737/Raincoast-Chronicles-20-Lilies-and-Fireweed-Frontier-Women-of-British-Columbia-by-Stephen-Hume.pdf
    • http://cefasfese.4pu.com/1733736734730733/Contact-and-Conflict-Indian-European-Relations-in-British-Columbia-1774-1890-by-Robin-Fisher.pdf
    • http://cefasfese.4pu.com/1730730731736734/A-Thousand-Blunders-The-Grand-Trunk-Pacific-Railway-and-Northern-British-Columbia-by-Frank-Leonard.pdf
    • http://cefasfese.4pu.com/1731738732730733/Aboriginal-Peoples-and-Politics-The-Indian-Land-Question-in-British-Columbia-1849-1989-by-Paul-Tennant.pdf
    • http://cefasfese.4pu.com/1731738732731737/The-Recorded-History-of-the-Liard-Basin-1790-1910-Where-British-Columbia-Joins-the-Yukon-and-N-W-T-by-Anthony-Kenyon.pdf
    • http://cefasfese.4pu.com/1731730734735731733/Campmobil-Guide-West-Kanada-Die-sch-nsten-Touren-durch-Alberta-amp-British-Columbia-by-Trudy-Mielke.pdf
    • http://cefasfese.4pu.com/9735737730733738/Among-the-Selkirk-Glaciers-Being-the-Account-of-a-Rough-Survey-in-the-Rocky-Mountain-Regions-of-British-Columbia-by-William-Spotswood-Green.pdf