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Analysis
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max time kernel
94s -
max time network
137s -
platform
windows11-21h2_x64 -
resource
win11-20250210-en -
resource tags
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submitted
16/02/2025, 12:22
General
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Target
jigsaw.exe
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Size
283KB
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MD5
2773e3dc59472296cb0024ba7715a64e
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SHA1
27d99fbca067f478bb91cdbcb92f13a828b00859
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SHA256
3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
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SHA512
6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
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SSDEEP
6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX
Malware Config
Signatures
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Jigsaw Ransomware
Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
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Jigsaw family
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Renames multiple (1519) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Downloads MZ/PE file 1 IoCs
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Executes dropped EXE 1 IoCs
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
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Drops file in Program Files directory 64 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
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Suspicious use of WriteProcessMemory 2 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\jigsaw.exe"C:\Users\Admin\AppData\Local\Temp\jigsaw.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe"C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\jigsaw.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
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C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PG9lbSBwcm9kdWN0X21hbnVmYWN0dXJlcj0iIiBwcm9kdWN0X25hbWU9IiIvPjxleHAgZXRhZz0iJnF1b3Q7RSt4YkF6Nlk2c1UxMjg5YlM2cWw0VlJMYmtqZkJVR1RNSnNqckhyNDRpST0mcXVvdDsiLz48YXBwIGFwcGlkPSJ7OEE2OUQzNDUtRDU2NC00NjNjLUFGRjEtQTY5RDlFNTMwRjk2fSIgdmVyc2lvbj0iMTIzLjAuNjMxMi4xMjMiIG5leHR2ZXJzaW9uPSIiIGxhbmc9ImVuIiBicmFuZD0iR0dMUyIgY2xpZW50PSIiIGluc3RhbGxhZ2U9IjYiIGluc3RhbGxkYXRldGltZT0iMTczOTE4MzcyMyIgb29iZV9pbnN0YWxsX3RpbWU9IjEzMzgzNjU1NTQ5Njc0MDAwMCI-PGV2ZW50IGV2ZW50dHlwZT0iMzEiIGV2ZW50cmVzdWx0PSIxIiBlcnJvcmNvZGU9IjAiIGV4dHJhY29kZTE9IjIxNzk4NjIiIHN5c3RlbV91cHRpbWVfdGlja3M9IjUwMzA4NzI5MjEiLz48L2FwcD48L3JlcXVlc3Q-1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
32KB
MD5829165ca0fd145de3c2c8051b321734f
SHA1f5cc3af85ab27c3ea2c2f7cbb8295b28a76a459e
SHA256a193ee2673e0ba5ebc5ea6e65665b8a28bd7611f06d2b0174ec2076e22d94356
SHA5127d380cda12b342a770def9d4e9c078c97874f3a30cd9f531355e3744a8fef2308f79878ffeb12ce26953325cb6a17bc7e54237dfdc2ee72b140ec295676adbcb
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Filesize
160B
MD5580ee0344b7da2786da6a433a1e84893
SHA160f8c4dd5457e9834f5402cb326b1a2d3ca0ba7e
SHA25698b6c2ddfefc628d03ceaef9d69688674a6bc32eb707f9ed86bc8c75675c4513
SHA512356d2cdea3321e894b5b46ad1ea24c0e3c8be8e3c454b5bd300b7340cbb454e71fc89ca09ea0785b373b483e67c2f6f6bb408e489b0de4ff82d5ed69a75613ba
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Filesize
283KB
MD52773e3dc59472296cb0024ba7715a64e
SHA127d99fbca067f478bb91cdbcb92f13a828b00859
SHA2563ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
SHA5126ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
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Filesize
8KB
MD5f22599af9343cac74a6c5412104d748c
SHA1e2ac4c57fa38f9d99f3d38c2f6582b4334331df5
SHA25636537e56d60910ab6aa548e64ca4adafdcabde9d60739013993e12ba061dfd65
SHA5125c8afc025e1d8342d93b7842dc7ef22eca61085857a80a08ba9b3f156ee3b814606bb32bc244bd525a7913e7915bdf3a86771d39577f4a1176ade04dc381c6d4
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Filesize
16B
MD58ebcc5ca5ac09a09376801ecdd6f3792
SHA181187142b138e0245d5d0bc511f7c46c30df3e14
SHA256619e246fc0ac11320ff9e322a979948d949494b0c18217f4d794e1b398818880
SHA512cec50bfc6ad2f57f16da99459f40f2d424c6d5691685fa1053284f46c8c8c8a975d7bcb1f3521c4f3fbdc310cf4714e29404aa23be6021e2e267c97b090dc650
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Filesize
9.6MB
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Filesize
9.6MB
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Filesize
9.6MB
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Filesize
32KB
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Filesize
9.6MB
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Filesize
4.8MB
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Filesize
9.6MB
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Filesize
624KB
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Filesize
4KB
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Filesize
9.6MB
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Filesize
224KB
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Filesize
9.6MB
