Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f30a90422337ad0…

MALICIOUS

PDF

17.3 KB Created: 2019-05-02 05:27:07 +01:00 Authoring application: mPDF 5.7
MD5: d5018009dd331f6f55f8b171a4ea31d5 SHA-1: c5853bb49570758599d3e11545b3943df0c5cd46 SHA-256: 4f30a90422337ad08883f5d3f2a5c1fbd9ea75c40b2e37ffc5c6706962c0a867
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, identified as a link farm, which is a common technique for SEO poisoning and driving traffic to potentially malicious sites. The ML classifier also flagged this PDF with high confidence. While the URLs themselves are currently marked as benign, the sheer volume and nature of the links suggest a malicious intent to redirect users. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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://cefasfese.4pu.com/7737732739732/Jessica-Jessica-Trouble-Sweet-Valley-Kids-59-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/7738730733730/The-Amazing-Jessica-Sweet-Valley-Kids-60-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8736737734735/Elizabeth-and-Jessica-Run-Away-Sweet-Valley-Kids-31-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8737730738733/Jessica-s-Snobby-Club-Sweet-Valley-Kids-26-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/7731733730734/And-the-Winner-Is-Jessica-Wakefield-Sweet-Valley-Kids-66-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8739731735732/Sweet-Valley-Twins-Collection-Jessica-s-No-Angel-Happy-Mother-s-Day-Lila-Jessica-Takes-Charge-Sweet-Valley-Twins-Super-Edition-11-115-116-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/7730732732734736/Mademoiselle-Jessica-Sweet-Valley-Twins-46-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8738739735734/Jessica-Takes-Charge-Sweet-Valley-Twins-116-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/4735732737733736/Jessica-s-First-Kiss-Sweet-Valley-Twins-Super-Edition-8-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/5730733733730731/Sweet-Valley-Twins-Summer-Diaries-Collection-Elizabeth-Next-Stop-Jr-High-Jessica-Next-Stop-Jr-High-Sweet-Valley-Twins-Super-Edition-13-14-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8737732737738/The-Sweet-Valley-Cleanup-Team-Sweet-Valley-Kids-27-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8734736739738/Get-the-Teacher-Sweet-Valley-Kids-46-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8737738734730/Andy-and-the-Alien-Sweet-Valley-Kids-29-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8732733733738/Steven-s-Twin-Sweet-Valley-Kids-50-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8731736734739/Elizabeth-the-Tattletale-Sweet-Valley-Kids-47-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8738731738733/Fearless-Elizabeth-Sweet-Valley-Kids-15-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8730734730738/Star-of-the-Parade-Sweet-Valley-Kids-54-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/7738736735738/Scaredy-Cat-Elizabeth-Sweet-Valley-Kids-61-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8732739739732/Robin-in-the-Middle-Sweet-Valley-Kids-40-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8737734735737/Elizabeth-Meets-Her-Hero-Sweet-Valley-Kids-28-by-Francine-Pascal.pdf
    • http://cefasfese.4pu.com/8738739735734/Jessica-Takes-Char

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