Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bc04653a2049eb6…

MALICIOUS

PDF

17.9 KB Created: 2020-03-18 21:35:45 +00:00 Authoring application: mPDF 5.7
MD5: 21d651099d5866bfc72ebedc0d907d97 SHA-1: f04b7ce862d26125eee12692bbca7245a54a7946 SHA-256: 9bc04653a2049eb639a07d886dd1a2ec1aee17b6ef465f7b31a346db0310ffc7
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 PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on the domain 'calistazz.myhome.cx'. The ML classifier also flagged this PDF as malicious. The primary attack pattern appears to be directing users to external malicious content through a link farm, potentially for SEO poisoning or to serve further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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/1861862862866861869/Utan-n-d-Maggie-O-Dell-8-ga-f-r-ga-Maggie-O-Dell-8-5-by-Alex-Kava.pdf
    • http://calistazz.myhome.cx/2866866862866863/Fireproof-Maggie-O-Dell-10-by-Alex-Kava.pdf
    • http://calistazz.myhome.cx/3866862867863869/Split-Second-Maggie-O-Dell-2-by-Alex-Kava.pdf
    • http://calistazz.myhome.cx/8862866862862866/A-Breath-of-Hot-Air-Maggie-O-Dell-8-5-by-Alex-Kava.pdf
    • http://calistazz.myhome.cx/3865866866865861/Damaged-Maggie-O-Dell-8-by-Alex-Kava.pdf
    • http://calistazz.myhome.cx/9868868867863/Stranded-Maggie-O-Dell-11-by-Alex-Kava.pdf
    • http://calistazz.myhome.cx/4868864864862865/A-Perfect-Evil-Maggie-O-Dell-1-by-Alex-Kava.pdf
    • http://calistazz.myhome.cx/4862869864863862/The-Soul-Catcher-Maggie-O-Dell-3-by-Alex-Kava.pdf
    • http://calistazz.myhome.cx/4863866865866869/Blood-Too-Bright-Floyd-Dell-Remembers-Edna-St-Vincent-Millay-by-Jerri-Dell.pdf
    • http://calistazz.myhome.cx/4864860869868860/Miss-O-Dell-My-Hard-Days-and-Long-Nights-with-The-Beatles-The-Stones-Bob-Dylan-Eric-Clapton-and-the-Women-They-Loved-by-Chris-O-39-Dell.pdf
    • http://calistazz.myhome.cx/2869866862864864/Miss-O-Dell-My-Hard-Days-and-Long-Nights-with-the-Beatles-the-Stones-Bob-Dylan-Eric-Clapton-and-the-Women-They-Loved-by-Chris-O-39-Dell.pdf
    • http://calistazz.myhome.cx/2867868869864869/Maggie-s-Island-Maggie-McGill-Mystery-4-by-Sharon-Burch-Toner.pdf
    • http://calistazz.myhome.cx/2861869860868868/Maggie-on-the-Bounty-Maggie-MacKay-Magical-Tracker-3-by-Kate-Danley.pdf
    • http://calistazz.myhome.cx/2861866868862869/Maggie-Needs-An-Alibi-Maggie-Kelly-Mystery-1-by-Kasey-Michaels.pdf
    • http://calistazz.myhome.cx/2867867863863865/Maggie-s-Art-Maggie-McGill-Mystery-2-by-Sharon-Burch-Toner.pdf
    • http://calistazz.myhome.cx/2861869860868860/Maggie-Get-Your-Gun-Maggie-MacKay-Magical-Tracker-2-by-Kate-Danley.pdf
    • http://calistazz.myhome.cx/2860866865864862/You-re-Mine-Maggie-The-Misadventures-of-Maggie-Mae-2-by-Beth-Yarnall.pdf
    • http://calistazz.myhome.cx/2867860869860863/Shaggy-Maggie-Shaggy-Maggie-Band-1-by-Tyffani-Clark-Kemp.pdf
    • http://calistazz.myhome.cx/6860864861867862/Corpse-in-the-Catbird-Seat-A-Maggie-Boland-Mystery-Maggie-Boland-Mystery-Series-Book-1-by-Moira-Ragon.pdf
    • http://calistazz.myhome.cx/1869868864860866/Smile-for-Me-by-T-J-Dell.pdf
    • http://calistazz.myhome.cx/4863866865866869/Blo

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