Resubmissions
16/06/2026, 08:27
260616-kcj8daby5z1016/06/2026, 08:23
260616-kaceraby4t1011/05/2026, 16:26
260511-tx2gtshz8n1031/05/2025, 16:36
250531-t4g2rsxmv71031/05/2025, 16:29
250531-ty711axl1331/05/2025, 16:25
250531-txecastzgs1031/05/2025, 16:20
250531-ts986stzes1031/05/2025, 08:31
250531-kexw9azzgz10General
- Target jigsaw
- Size 283KB
- Sample260616-kcj8daby5z
- SHA256 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
- MD5 2773e3dc59472296cb0024ba7715a64e
- SHA1 27d99fbca067f478bb91cdbcb92f13a828b00859
- SHA512 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
- SSDEEP 6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX
- TLSH T110549D9C366076EFC867D476DEA81CA4FA6078BB832B8207901715EDA90D997CF141F3
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
jigsaw.exe
Resource
win10v2004-20260513-en
18 signatures
600 seconds
Malware Config
Targets
-
- Target jigsaw
- Size 283KB
- SHA256 3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
- MD5 2773e3dc59472296cb0024ba7715a64e
- SHA1 27d99fbca067f478bb91cdbcb92f13a828b00859
- SHA512 6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
- SSDEEP 6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX
- TLSH T110549D9C366076EFC867D476DEA81CA4FA6078BB832B8207901715EDA90D997CF141F3
- MD5 SHA1 SHA512 SSDEEP TLSH
Score10/10Family: Jigsaw Ransomware
Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
Renames multiple (3929) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Executes dropped EXE
Adds Run key to start application
Drops desktop.ini file(s)
ConfuserEx .NET packer
Detects ConfuserEx .NET packer.
MITRE ATT&CK Enterprise v16
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
1