Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffb6b1d57a4fd422…

MALICIOUS

PDF

26.8 KB Created: 2019-04-30 18:22:35 +01:00 Authoring application: mPDF 5.7
MD5: 42585e529ed098a0973232f405155e53 SHA-1: 4554b74b68e48437a95d515ecd1daa4a160bbe8d SHA-256: ffb6b1d57a4fd42203c80eb7c4c8a81ae06fa649d908663694a74bd3e9820797
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, characteristic of a link farm or SEO poisoning attack. While the document body text is unreadable, the presence of numerous links suggests an attempt to manipulate search engine results or redirect users to potentially harmful websites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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://zacdsa.linkpc.net/2c58c54c51c52c56/The-Stillmeadow-Road-Stillmeadow-Series-7-by-Gladys-Taber.pdf
    • http://zacdsa.linkpc.net/4c57c56c53c52c54/Gladys-Aylward-The-Little-Woman-by-Gladys-Aylward.pdf
    • http://zacdsa.linkpc.net/4c52c51c53c54c57/Gladys-Aylward-The-Little-Woman-by-Gladys-Aylward.pdf
    • http://zacdsa.linkpc.net/2c50c59c53c51/Cast-a-Road-Before-Me-Bradleyville-Series-1-by-Brandilyn-Collins.pdf
    • http://zacdsa.linkpc.net/7c57c53c53c53c50/The-Landing-The-United-States-of-Vinland-1-by-Colin-Taber.pdf
    • http://zacdsa.linkpc.net/5c57c51c52c59/The-Road-to-Home-South-Africa-Series-1-by-Vanessa-Del-Fabbro.pdf
    • http://zacdsa.linkpc.net/3c52c55c51c50c50/A-Road-Unknown-Amish-Roads-Series-1-by-Barbara-Cameron.pdf
    • http://zacdsa.linkpc.net/2c57c59c51c59c53/Wanting-You-Book-One-of-the-Broken-Road-Series-by-Becca-Siller.pdf
    • http://zacdsa.linkpc.net/7c57c53c53c56c53/Loki-s-Rage-The-United-States-of-Vinland-3-by-Colin-Taber.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c50c54/The-Cause-of-Warm-and-Frigid-Periods-by-Charles-Austin-Mendell-Taber.pdf
    • http://zacdsa.linkpc.net/9c57c57c58c53c50/The-road-is-everywhere-or-stop-this-body-Open-Places-poets-series-no-5-by-Rosmarie-Waldrop.pdf
    • http://zacdsa.linkpc.net/1c53c53c55c57c54/Orson-Scott-Card-Series-Reading-Order-amp-Checklist-Series-List-in-Order---Ender-Series-Formic-War-Series-Shadow-Series-Ender-Series-amp-Tales-of-Alvin-Maker-Series-Listabook-Series-Order-Book-15-by-Listabook.pdf
    • http://zacdsa.linkpc.net/5c54c54c58c54c57/Brandon-Mull-Books-Checklist-and-Series-in-Order-2017-Beyonders-Series-in-Order-Candy-Shop-War-Series-in-Order-Dragonwatch-Series-in-Order-Fablehaven-Series-Five-Kingdoms-Series-and-More-by-List-To-Read.pdf
    • http://zacdsa.linkpc.net/1c50c52c58c53c58c50/Julie-Garwood-Reading-List---The-Girls-of-Canby-Hall-Series-Crown-s-Spies-Series-Lairds-Brides-Series-Highlands-Lairds-Series-Clayborne-of-Rosehill-Series-etc-by-Edward-Peterson.pdf
    • http://zacdsa.linkpc.net/5c54c54c58c54c58/Brandon-Mull-Series-Reading-Order-amp-Checklist-Series-List-in-Order---Five-Kingdom-Series-Fablehaven-Series-Beyonders-Trilogy-Candy-Shop-War-Series-Listabook-Series-Order-Book-24-by-Listabook.pdf
    • http://zacdsa.linkpc.net/4c55c57c58c59c52/Stephanie-by-Gladys-Malvern.pdf
    • http://zacdsa.linkpc.net/7c56c55c51c56c57/Championship-no-limit-and-pot-limit-hold-em-On-the-road-to-the-World-Series-of-Poker-by-T-J-Cloutier.pdf
    • http://zacdsa.linkpc.net/7c51c56c52c59c56/Maya-Banks-Series-Reading-Order-amp-Checklist-Series-List-in-Order---KGI-Series-Enforcers-Series-Slow-Burn-Series-amp-All-Other-Books-Listabook-Series-Order-Book-58-by-Listabook.pdf
    • http://zacdsa.linkpc.net/4c55c58c56c54c58/The-Chosen-One-The-Dream-3-by-Gladys-Quintal.pdf
    • http://zacdsa.linkpc.net/1c51c58c54c53c59c51/Morbid-Cravings-by-Gladys-Furphy.pdf
    • http://zacdsa.linkpc.net/7c57c53c53c56c53/Lok