jigsaw | 787dd3ee8a82572a1ca2ba03a0e2953b4f1b3f98b5a83837795adc6a1eb604e4 | Triage

Sharing

General

Target

Ransomware.Jigsaw2.zip.zip
Size

240KB
Sample

250320-d65b3sstgs
MD5

2aa870f17c54902c214e38079b3aa3ce
SHA1

44fea2c11b39036b11a0a5aa9abcdcc8a495226d
SHA256

787dd3ee8a82572a1ca2ba03a0e2953b4f1b3f98b5a83837795adc6a1eb604e4
SHA512

1e59f27775bbfdc25bc45107132433a79ac1df9351ab9e8348bba6b2fa80ee7bd416c7e3fe11cd638e1991f2c9981b25f60b92485b8329e48e787b4f717b6a0f
SSDEEP

6144:RRPjV8AZp4rfi6YHr6VqikPnT5S0riWpD5:RhWwp8jbCQ0riWpD5

Score

10^/10

jigsaw persistence ransomware spyware stealer

Malware Config

Targets

- Target
  
  jigsaw
- Size
  
  283KB
- MD5
  
  2773e3dc59472296cb0024ba7715a64e
- SHA1
  
  27d99fbca067f478bb91cdbcb92f13a828b00859
- SHA256
  
  3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7
- SHA512
  
  6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262
- SSDEEP
  
  6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX
Score

10^/10

jigsaw persistence ransomware spyware stealer
- Jigsaw Ransomware
  Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
  ransomware jigsaw
- Jigsaw family
  jigsaw
- Renames multiple (2003) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Adds Run key to start application
  persistence
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

Credential Access

Credentials from Password Stores

Credentials from Web Browsers

Unsecured Credentials

Credentials In Files

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

jigsawpersistenceransomwarespywarestealer

behavioral2

jigsawpersistenceransomwarespywarestealer