jigsaw | a375201f22b6e71d8ea0f81266242e4638e1754aeee14059e9c5e39026d6c710 | Triage

Sharing

General

Target

3bee1d24189d4941f68b96da6e207be4_JaffaCakes118
Size

436KB
Sample

241012-zfbgzavaql
MD5

3bee1d24189d4941f68b96da6e207be4
SHA1

dce911b1c05da965c8733935723b88bc29d12756
SHA256

a375201f22b6e71d8ea0f81266242e4638e1754aeee14059e9c5e39026d6c710
SHA512

a40b01c630ff2c4b90a2e1bbf285c5d558193ee0fba79a3210a56408087ca828292269945e3202f65b8eb038a565b1ea8a18d185864ba9dc4073a3633c86ca29
SSDEEP

12288:5l9mnmYK1bcy9oNm3/oK14MfZGLBddXLA:cqzONmQrBM

Score

10^/10

jigsaw persistence ransomware spyware stealer

Malware Config

Targets

- Target
  
  3bee1d24189d4941f68b96da6e207be4_JaffaCakes118
- Size
  
  436KB
- MD5
  
  3bee1d24189d4941f68b96da6e207be4
- SHA1
  
  dce911b1c05da965c8733935723b88bc29d12756
- SHA256
  
  a375201f22b6e71d8ea0f81266242e4638e1754aeee14059e9c5e39026d6c710
- SHA512
  
  a40b01c630ff2c4b90a2e1bbf285c5d558193ee0fba79a3210a56408087ca828292269945e3202f65b8eb038a565b1ea8a18d185864ba9dc4073a3633c86ca29
- SSDEEP
  
  12288:5l9mnmYK1bcy9oNm3/oK14MfZGLBddXLA:cqzONmQrBM
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 (2103) 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