Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b0637e0bb162e25…

MALICIOUS

PDF

15.8 KB Created: 2020-03-15 10:25:34 +00:00 Authoring application: mPDF 5.7
MD5: 514d10384a0780e20d4a71e9cb0c9b01 SHA-1: 0785e74700df41f74b14f130d08a9c28b404a16e SHA-256: 6b0637e0bb162e258d7102f3c5e164430ba368f3bfc54196aea23c9842c8b326
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to a single domain, identified by the 'PDF_SEO_LINK_FARM' heuristic. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the structure suggests an attempt to manipulate search engine results or redirect users to potentially malicious content hosted on the 'kitasdyu.myhome.cx' domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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://kitasdyu.myhome.cx/2871873878870870/Winter-s-Heart-by-Michael-Kanuckel.pdf
    • http://kitasdyu.myhome.cx/3876870878879871/Grunge-Childe-by-Michael-Kanuckel.pdf
    • http://kitasdyu.myhome.cx/3879877879877877/Small-Matters-by-Michael-Kanuckel.pdf
    • http://kitasdyu.myhome.cx/3879872873875879/Winter-s-Heart-by-A-C-Warneke.pdf
    • http://kitasdyu.myhome.cx/4871876875875879/Once-Upon-a-Winter-s-Heart-by-Melody-Carlson.pdf
    • http://kitasdyu.myhome.cx/2870872879871877/The-Winter-Heart-by-Lillian-Cheatham.pdf
    • http://kitasdyu.myhome.cx/4871877874871872/A-Winter-Heart-by-Annette-Blair.pdf
    • http://kitasdyu.myhome.cx/3877877872870878/Winter-s-Heart-Wheel-of-Time-9-by-Robert-Jordan.pdf
    • http://kitasdyu.myhome.cx/4876871877870875/Thaw-in-Winter-Melt-My-Heart-1-by-Kate-Steele.pdf
    • http://kitasdyu.myhome.cx/9879877872879/Architects-Are-Here-by-Michael-Winter.pdf
    • http://kitasdyu.myhome.cx/1874871879873872/This-All-Happened-by-Michael-Winter.pdf
    • http://kitasdyu.myhome.cx/1878877872875878/The-Winter-Calf-Maple-Gap-1-by-Michael-S-Nuckols.pdf
    • http://kitasdyu.myhome.cx/1870878874877870/The-Winter-Calf-Maple-Gap-1-by-Michael-S-Nuckols.pdf
    • http://kitasdyu.myhome.cx/5874873875877/The-Anvil-of-Ice-The-Winter-of-the-World-1-by-Michael-Scott-Rohan.pdf
    • http://kitasdyu.myhome.cx/2877878877873870/The-Hammer-of-the-Sun-The-Winter-of-the-World-3-by-Michael-Scott-Rohan.pdf
    • http://kitasdyu.myhome.cx/4877879871875872/The-Castle-of-the-Winds-The-Winter-of-the-World-4-by-Michael-Scott-Rohan.pdf
    • http://kitasdyu.myhome.cx/3873878875875876/The-Disappearance-of-Winter-s-Daughter-The-Riyria-Chronicles-4-by-Michael-J-Sullivan.pdf
    • http://kitasdyu.myhome.cx/3876874871873873/A-Clockwork-Christmas-Wanted-One-Scoundrel-This-Winter-Heart-Far-From-Broken-Crime-Wave-in-a-Corset-The-Bustlepunk-Chronicles-Book-1-by-Angela-James.pdf
    • http://kitasdyu.myhome.cx/5870873878879871/The-Scarab-Heart-by-Michael-Gallagher.pdf
    • http://kitasdyu.myhome.cx/1871873873871879871/A-Heart-to-Betray-by-Michael-Limmer.pdf

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