jigsaw | fd563cf7c0c862ab910cf558b5a123354b616e84902d277edf09f378ff6f9786

Target

b28242123ed2cf6000f0aa036844bd29
Size

87KB
Sample

240312-mhqnfsef8x
MD5

b28242123ed2cf6000f0aa036844bd29
SHA1

915f41a6c59ed743803ea0ddde08927ffd623586
SHA256

fd563cf7c0c862ab910cf558b5a123354b616e84902d277edf09f378ff6f9786
SHA512

08e5966ca90f08c18c582e6c67d71186a6f9c025fc9f78020e1ce202814de094171111b7f3623d81f7371acdf92206446f7c0425e08e8f5f5b6fd969007d9fca
SSDEEP

1536:0A1KsVHBnVJ0T1rFTQHUPx+nVP7ZSRILMZoXyqqEbzPCAdt6rFTc:0A1rVIrFTOUsnVP7sRILgAPCvrFTc

Score

10^/10

Malware Config

Targets

- Target
  
  b28242123ed2cf6000f0aa036844bd29
- Size
  
  87KB
- MD5
  
  b28242123ed2cf6000f0aa036844bd29
- SHA1
  
  915f41a6c59ed743803ea0ddde08927ffd623586
- SHA256
  
  fd563cf7c0c862ab910cf558b5a123354b616e84902d277edf09f378ff6f9786
- SHA512
  
  08e5966ca90f08c18c582e6c67d71186a6f9c025fc9f78020e1ce202814de094171111b7f3623d81f7371acdf92206446f7c0425e08e8f5f5b6fd969007d9fca
- SSDEEP
  
  1536:0A1KsVHBnVJ0T1rFTQHUPx+nVP7ZSRILMZoXyqqEbzPCAdt6rFTc:0A1rVIrFTOUsnVP7sRILgAPCvrFTc
Score

10^/10

jigsaw locky bootkit discovery evasion persistence ransomware spyware stealer trojan upx
- Jigsaw Ransomware
  Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
  ransomware jigsaw
- Locky
  Ransomware strain released in 2016, with advanced features like anti-analysis.
  ransomware locky
- Renames multiple (1486) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Downloads MZ/PE file
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Drops startup file
- Executes dropped EXE
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Checks whether UAC is enabled
  evasion trojan
- Drops desktop.ini file(s)
- Legitimate hosting services abused for malware hosting/C2
- Writes to the Master Boot Record (MBR)
  Bootkits write to the MBR to gain persistence at a level below the operating system.
  bootkit persistence
- Drops file in System32 directory
behavioral1