b559d6c8ae637a692d359ac634a8e123bc200177026d4eae0c09f5c6944253c0 | Triage

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General

Target

b559d6c8ae637a692d359ac634a8e123bc200177026d4eae0c09f5c6944253c0
Size

441KB
Sample

221106-yaastahbe2
MD5

07c7505a5cd6e61e780aa0d03d19c650
SHA1

a7796ce3b3d29fbaaef09b11d8d12f3a57dc0ef6
SHA256

b559d6c8ae637a692d359ac634a8e123bc200177026d4eae0c09f5c6944253c0
SHA512

fa6c51f9cd6770e2f325ae1516f4bdcc2d2c8525569e9942e0d2c231ed41c4f83dc4091be5d098c0e46254bead1165c8710bea16fd458b7b2b179d370d8fd0da
SSDEEP

6144:RM7+f0N52SVdCnBeGjSbaE6kSpHD75quTpiadhqzpMthaIyedFf6G:O7mSLCnBeGebRWiInqzpMgI1

Score

10^/10

evasion persistence ransomware spyware stealer trojan

Malware Config

Targets

- Target
  
  b559d6c8ae637a692d359ac634a8e123bc200177026d4eae0c09f5c6944253c0
- Size
  
  441KB
- MD5
  
  07c7505a5cd6e61e780aa0d03d19c650
- SHA1
  
  a7796ce3b3d29fbaaef09b11d8d12f3a57dc0ef6
- SHA256
  
  b559d6c8ae637a692d359ac634a8e123bc200177026d4eae0c09f5c6944253c0
- SHA512
  
  fa6c51f9cd6770e2f325ae1516f4bdcc2d2c8525569e9942e0d2c231ed41c4f83dc4091be5d098c0e46254bead1165c8710bea16fd458b7b2b179d370d8fd0da
- SSDEEP
  
  6144:RM7+f0N52SVdCnBeGjSbaE6kSpHD75quTpiadhqzpMthaIyedFf6G:O7mSLCnBeGebRWiInqzpMgI1
Score

10^/10

evasion persistence ransomware spyware stealer trojan
- Modifies visibility of file extensions in Explorer
  evasion
- UAC bypass
  evasion trojan
- Executes dropped EXE
- Modifies extensions of user files
  Ransomware generally changes the extension on encrypted files.
  ransomware
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Deletes itself
- Loads dropped DLL
- 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
- Checks whether UAC is enabled
  evasion trojan
- Drops file in System32 directory
behavioral1 behavioral2

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

Registry Run Keys / Startup Folder

Privilege Escalation

Bypass User Account Control

Defense Evasion

Bypass User Account Control

Disabling Security Tools

Hidden Files and Directories

Modify Registry

Credential Access

Credentials in Files

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

evasionpersistenceransomwarespywarestealertrojan

behavioral2

evasionpersistencespywarestealertrojan