jigsaw | 86a391fe7a237f4f17846c53d71e45820411d1a9a6e0c16f22a11ebc491ff9ff | Triage

Sharing

General

Target

Ransomware.Jigsaw.zip
Size

239KB
Sample

240219-lfjlpaca68
MD5

3ad6374a3558149d09d74e6af72344e3
SHA1

e7be9f22578027fc0b6ddb94c09b245ee8ce1620
SHA256

86a391fe7a237f4f17846c53d71e45820411d1a9a6e0c16f22a11ebc491ff9ff
SHA512

21c21b36be200a195bfa648e228c64e52262b06d19d294446b8a544ff1d81f81eb2af74ddbdebc59915168db5dba76d0f0585e83471801d9ee37e59af0620720
SSDEEP

3072:p7ykj3uuY4NsJD7kPdSRQLqas/pkPm9jvkEL60Uf7k2BgS6/aFybrNN5ZAdNstk7:p7ym3VNA7w8R5/rxv7O0yng0UtVw5NJ

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
- Renames multiple (2014) 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

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