General
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Target
597c83ab1abf87d61ae707b071bfa729762491c397095316571cc3bd6f4f89aa
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Size
1.3MB
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Sample
250110-bkmtssypak
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MD5
459aa41d82c5b3ab2d9462fafa27d280
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SHA1
db27b0e83265568ef3e39b997f107bb33270a4ff
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SHA256
597c83ab1abf87d61ae707b071bfa729762491c397095316571cc3bd6f4f89aa
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SHA512
8a2c55e82f604a687be743f55791c4f3d2445335131d45d49540ab5d321237c7a04603baff8c875f5e26d7205e9c464c57db96de90201214b99bc6b77dd38afc
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SSDEEP
24576:zAmM5CDT3IxrrGwsclv1RIAhjLoamMiX4lNmZg0YxegPbUIDPP:zAmTD7IxrAcDjLoyEkmZ9Y14
Static task
static1
Behavioral task
behavioral1
Sample
597c83ab1abf87d61ae707b071bfa729762491c397095316571cc3bd6f4f89aa.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
597c83ab1abf87d61ae707b071bfa729762491c397095316571cc3bd6f4f89aa.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
officepost8
Extracted
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
officepost8
Targets
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Target
597c83ab1abf87d61ae707b071bfa729762491c397095316571cc3bd6f4f89aa
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Size
1.3MB
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MD5
459aa41d82c5b3ab2d9462fafa27d280
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SHA1
db27b0e83265568ef3e39b997f107bb33270a4ff
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SHA256
597c83ab1abf87d61ae707b071bfa729762491c397095316571cc3bd6f4f89aa
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SHA512
8a2c55e82f604a687be743f55791c4f3d2445335131d45d49540ab5d321237c7a04603baff8c875f5e26d7205e9c464c57db96de90201214b99bc6b77dd38afc
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SSDEEP
24576:zAmM5CDT3IxrrGwsclv1RIAhjLoamMiX4lNmZg0YxegPbUIDPP:zAmTD7IxrAcDjLoyEkmZ9Y14
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Agenttesla family
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AgentTesla payload
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Detected Nirsoft tools
Free utilities often used by attackers which can steal passwords, product keys, etc.
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Unsecured Credentials: Credentials In Files
Steal credentials from unsecured files.
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Accesses Microsoft Outlook profiles
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Adds Run key to start application
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1System Services
1Service Execution
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Access Token Manipulation
1Create Process with Token
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Defense Evasion
Access Token Manipulation
1Create Process with Token
1Impair Defenses
1Modify Registry
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
5Credentials In Files
4Credentials in Registry
1