Malicious PDF — malware analysis report

Static analysis result for SHA-256 90c4093b48b7019a…

MALICIOUS

PDF

23.5 KB Created: 2020-02-06 01:17:31 +00:00 Authoring application: mPDF 5.7
MD5: 3be7e7bd32852b7d0eb9e973c75ae212 SHA-1: 3f00a18a429bea5b4edad8608f957b989abb6c43 SHA-256: 90c4093b48b7019abdd0ee5c93dfc5a96c4b244d53961178042726817f4aa1b9
60 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links to external PDF files, all hosted on the domain 'calistazz.myhome.cx'. This is indicative of a link farm or a distribution mechanism for further malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the immediate intent beyond the link farm. The primary IOCs are the numerous URLs pointing to external content.

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://calistazz.myhome.cx/7867860860866864/The-Small-Big-Small-Changes-That-Spark-Big-Influence-by-Steve-J-Martin.pdf
    • http://calistazz.myhome.cx/3862869867869869/Grouped-How-Small-Groups-of-Friends-Are-the-Key-to-Influence-on-the-Social-Web-by-Paul-Adams.pdf
    • http://calistazz.myhome.cx/2862866862869/The-News-in-Small-Towns-Small-Town-Series-Book-1-by-Iza-Moreau.pdf
    • http://calistazz.myhome.cx/7860864862866/In-the-Small-Small-Pond-by-Denise-Fleming.pdf
    • http://calistazz.myhome.cx/3868864862864865/Small-Feet-on-the-Run-by-Sieglinde-Martin.pdf
    • http://calistazz.myhome.cx/4864866861867861/Small-Acts-of-Resistance-How-Courage-Tenacity-and-Ingenuity-Can-Change-the-World-by-Steve-Crawshaw.pdf
    • http://calistazz.myhome.cx/8863866866863863/Handbook-Of-The-New-Library-Of-Congress-Comp-By-Herbert-Small-With-Essays-On-The-Architecture-Sculpture-And-Painting-By-Charles-Caffin-And-On-The-Library-By-Ainsworth-R-Spofford-1897-by-Herbert-Small.pdf
    • http://calistazz.myhome.cx/1869867860867865/Starting-Running-Your-Own-Small-Farm-Business-Small-Farm-Success-Stories-Financial-Assistance-Sources-Marketing-Selling-Ideas-Business-Plan-Forms-Documents-by-Sarah-Beth-Aubrey.pdf
    • http://calistazz.myhome.cx/3863865863864865/Small-Change-Small-Change-1-by-Roan-Parrish.pdf
    • http://calistazz.myhome.cx/8861867863862861/Luther-s-Small-Catechism-Developed-and-Explained-General-Synod-Edition-1893-by-Martin-Luther.pdf
    • http://calistazz.myhome.cx/1863863867864869/Small-Town-Superhero-Small-Town-Superhero-1-by-Cheree-Alsop.pdf
    • http://calistazz.myhome.cx/2866865863861868/The-Ten-Make-That-Nine-Habits-of-Very-Organized-People-Make-That-Ten-The-Tweets-of-Steve-Martin-by-Steve-Martin.pdf
    • http://calistazz.myhome.cx/1869867862862863/Small-Blue-Thing-Small-Blue-Thing-1-by-S-C-Ransom.pdf
    • http://calistazz.myhome.cx/8865862869865862/Destroying-Dogma-Vine-Deloria-Jr-and-His-Influence-on-American-Society-by-Steve-Pavlik.pdf
    • http://calistazz.myhome.cx/4865865865866861/I-Am-a-Small-God-by-A-J-Dalton.pdf
    • http://calistazz.myhome.cx/4862866867866865/The-Very-Small-by-Joyce-Dunbar.pdf
    • http://calistazz.myhome.cx/1861867864864866/The-Breath-of-God-by-Jeffrey-Small.pdf
    • http://calistazz.myhome.cx/5860864866865863/Hellion-by-Bertrice-Small.pdf
    • http://calistazz.myhome.cx/3868860867868860/Small-Changes-by-Marge-Piercy.pdf
    • http://calistazz.myhome.cx/5864869867861/The-Small-Bachelor-by-P-G-Wodehouse.pdf
    • http://calistazz.myhome.cx/8863866866863863/Handbook-Of-The-New-Library-Of-Congress-Comp-By-Herber