Analysis
- max time kernel
97s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
16/07/2024, 01:01
General
- Target d1c803868aaf6227bf62d0b7aeb567befcac5bd369d34bf11a54831d4137c935.exe
- Size 197KB
- Sample240716-bdfrxazhnb
- SHA256 d1c803868aaf6227bf62d0b7aeb567befcac5bd369d34bf11a54831d4137c935
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
162.254.34.31
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Port
587
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Username
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Password
26ivK6IyAzFg
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- PureLog Stealer
PureLog Stealer is an infostealer written in C#.
- PureLog Stealer payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\d1c803868aaf6227bf62d0b7aeb567befcac5bd369d34bf11a54831d4137c935.exe"C:\Users\Admin\AppData\Local\Temp\d1c803868aaf6227bf62d0b7aeb567befcac5bd369d34bf11a54831d4137c935.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ipconfig /release2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\ipconfig.exeipconfig /release3⤵
- Gathers network information
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C:\Users\Admin\AppData\Local\Temp\d1c803868aaf6227bf62d0b7aeb567befcac5bd369d34bf11a54831d4137c935.exe"C:\Users\Admin\AppData\Local\Temp\d1c803868aaf6227bf62d0b7aeb567befcac5bd369d34bf11a54831d4137c935.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ipconfig /renew2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\ipconfig.exeipconfig /renew3⤵
- Gathers network information
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/916-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp
memory/916-1-0x00000000009B0000-0x00000000009E6000-memory.dmp
memory/916-2-0x0000000005A10000-0x0000000005FB4000-memory.dmp
memory/916-3-0x0000000005540000-0x00000000055D2000-memory.dmp
memory/916-4-0x0000000005530000-0x000000000553A000-memory.dmp
memory/916-5-0x0000000005520000-0x0000000005526000-memory.dmp
memory/916-6-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/916-7-0x00000000070F0000-0x0000000007320000-memory.dmp
memory/916-13-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-17-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-25-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-45-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-57-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-69-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-67-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-65-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-63-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-61-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-59-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-55-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-53-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-51-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-49-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-47-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-43-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-41-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-39-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-37-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-35-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-33-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-31-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-29-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-27-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-23-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-19-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-15-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-11-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-9-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-21-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-8-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-71-0x00000000070F0000-0x0000000007319000-memory.dmp
memory/916-4870-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/916-4871-0x0000000006EC0000-0x0000000006F2C000-memory.dmp
memory/916-4872-0x00000000068C0000-0x000000000690C000-memory.dmp
memory/916-4873-0x0000000074E4E000-0x0000000074E4F000-memory.dmp
memory/916-4874-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/916-4875-0x0000000008C70000-0x0000000008CC4000-memory.dmp
memory/916-4882-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/4960-4878-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/4960-4879-0x0000000000550000-0x0000000000590000-memory.dmp
memory/4960-4880-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/4960-4881-0x0000000004B90000-0x0000000004BF6000-memory.dmp
memory/4960-4883-0x0000000006110000-0x0000000006160000-memory.dmp
memory/4960-4884-0x0000000006200000-0x000000000629C000-memory.dmp
memory/4960-4885-0x0000000074E40000-0x00000000755F0000-memory.dmp