Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a3dd1918f6b4277…

MALICIOUS

PDF

23.7 KB Created: 2020-03-18 22:26:34 +00:00 Authoring application: mPDF 5.7
MD5: 5fbca9cbe21563837c09eb94958e0a35 SHA-1: 37cd2cfe3bb2f7e50c071eeb3cf6273617b28f58 SHA-256: 5a3dd1918f6b42771c601bcf817e58da1249260f6a8bc5241d4160ddf08e9ee2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, but the embedded URLs suggest a phishing or content distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9776

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://lwoscmobook.myhome.cx/1524052415246524652465241/I-Can-Make-You-Sleep-Overcome-Insomnia-Forever-and-Get-the-Best-Rest-of-Your-Life-by-Paul-McKenna.pdf
    • http://lwoscmobook.myhome.cx/75247524352495249/CHANGE-YOUR-LIFE-IN-7-DAYS-Include-CD-amp-DVD-Change-Your-Life-in-7-Days-I-Can-Make-You-by-Paul-McKenna-Jan-1-2013-by-Paul-McKenna.pdf
    • http://lwoscmobook.myhome.cx/1524052415246524652455245/Insomnia-A-Guide-to-Insomnia-and-Relief-for-a-Better-Night-s-Sleep-by-John-Chatham.pdf
    • http://lwoscmobook.myhome.cx/45249524352405241/I-Can-Make-You-Thin-by-Paul-McKenna.pdf
    • http://lwoscmobook.myhome.cx/852415249524652475249/Sleep-It-Does-A-Family-Good-How-Busy-Families-Can-Overcome-Sleep-Deprivation-by-Archibald-D-Hart.pdf
    • http://lwoscmobook.myhome.cx/1524052415246524652405249/The-Insomnia-Answer-A-Personalized-Program-for-Identifying-and-Overcoming-the-Three-Types-of-Insomnia-by-Paul-Glovinsky.pdf
    • http://lwoscmobook.myhome.cx/652465247524052425243/An-Oasis-in-Time-How-a-Day-of-Rest-Can-Save-Your-Life-by-Marilyn-Paul.pdf
    • http://lwoscmobook.myhome.cx/452415244524652495242/Change-Your-Life-In-Seven-Days-by-Paul-McKenna.pdf
    • http://lwoscmobook.myhome.cx/1524052415246524652455240/Overcoming-Insomnia-And-Sleep-Problems-by-Colin-A-Espie.pdf
    • http://lwoscmobook.myhome.cx/252475244524652475246/How-to-Grow-a-Novel-The-Most-Common-Mistakes-Writers-Make-and-How-to-Overcome-Them-by-Sol-Stein.pdf
    • http://lwoscmobook.myhome.cx/352475246524152405245/Begin-with-Yes-A-Short-Conversation-That-Will-Change-Your-Life-Forever-by-Paul-S-Boynton.pdf
    • http://lwoscmobook.myhome.cx/352495249524552485247/The-Baby-Sleep-Book-The-Complete-Guide-to-a-Good-Night-s-Rest-for-the-Whole-Family-by-William-Sears.pdf
    • http://lwoscmobook.myhome.cx/752415240524452405246/The-Rest-of-Forever-by-Carrie-Pulkinen.pdf
    • http://lwoscmobook.myhome.cx/252405246524352435249/Make-Mine-Midnight-by-Annmarie-McKenna.pdf
    • http://lwoscmobook.myhome.cx/1524052415246524752465240/Insomnia-A-Self-Help-Guide-to-Overcoming-Insomnia-by-Maureen-Humphries.pdf
    • http://lwoscmobook.myhome.cx/152445248524452455244/Make-Me-Yours-Forever-1-by-Alla-Kar.pdf
    • http://lwoscmobook.myhome.cx/152455245524852415248/The-Little-Sleep-A-Novel-by-Paul-Tremblay.pdf
    • http://lwoscmobook.myhome.cx/752485241524552425248/Talking-of-Love-How-to-Overcome-Trauma-and-Remake-Your-Life-Story-by-Boris-Cyrulnik.pdf
    • http://lwoscmobook.myhome.cx/152465241524652435245/Eat-Sleep-Ride-by-Paul-Howard.pdf
    • http://lwoscmobook.myhome.cx/35248524852405242/The-Little-Sleep-Mark-Genevich-1-by-Paul-Tremblay.pdf