Analysis
- max time kernel
136s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
03/03/2022, 06:55
General
- Target HyX7S5HBxgkKHjv.exe
- Size 972KB
- Sample220303-hpsn6shef3
- SHA256 ff97d9a16723c0b78dd8a1020c94fc44270c7d4870fdce0c6c4dfedbb2fd0a8c
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.medicare-equipment.com
-
Port
587
-
Username
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Password
AllTheBest777
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\HyX7S5HBxgkKHjv.exe"C:\Users\Admin\AppData\Local\Temp\HyX7S5HBxgkKHjv.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xtIuAXnHC.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xtIuAXnHC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA774.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\HyX7S5HBxgkKHjv.exe"C:\Users\Admin\AppData\Local\Temp\HyX7S5HBxgkKHjv.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3176-131-0x00000000000B0000-0x00000000001A8000-memory.dmp
memory/3176-132-0x0000000005350000-0x00000000058F4000-memory.dmp
memory/3176-133-0x0000000004BA0000-0x0000000004C32000-memory.dmp
memory/3176-134-0x0000000002810000-0x000000000281A000-memory.dmp
memory/3176-135-0x0000000004F40000-0x0000000004F41000-memory.dmp
memory/3176-136-0x00000000050F0000-0x000000000518C000-memory.dmp
memory/3176-130-0x00000000748CE000-0x00000000748CF000-memory.dmp
memory/3312-148-0x0000000007630000-0x0000000007652000-memory.dmp
memory/3312-154-0x0000000008330000-0x0000000008362000-memory.dmp
memory/3312-141-0x0000000006EA0000-0x00000000074C8000-memory.dmp
memory/3312-144-0x00000000748CE000-0x00000000748CF000-memory.dmp
memory/3312-145-0x00000000044F0000-0x00000000044F1000-memory.dmp
memory/3312-146-0x00000000044F2000-0x00000000044F3000-memory.dmp
memory/3312-164-0x0000000009390000-0x0000000009398000-memory.dmp
memory/3312-139-0x0000000004440000-0x0000000004476000-memory.dmp
memory/3312-149-0x00000000076D0000-0x0000000007736000-memory.dmp
memory/3312-150-0x0000000007740000-0x00000000077A6000-memory.dmp
memory/3312-163-0x00000000093B0000-0x00000000093CA000-memory.dmp
memory/3312-152-0x0000000007D70000-0x0000000007D8E000-memory.dmp
memory/3312-153-0x00000000044F5000-0x00000000044F7000-memory.dmp
memory/3312-162-0x00000000092A0000-0x00000000092AE000-memory.dmp
memory/3312-155-0x0000000070700000-0x000000007074C000-memory.dmp
memory/3312-156-0x0000000008310000-0x000000000832E000-memory.dmp
memory/3312-157-0x00000000096B0000-0x0000000009D2A000-memory.dmp
memory/3312-158-0x0000000009070000-0x000000000908A000-memory.dmp
memory/3312-159-0x000000007FAC0000-0x000000007FAC1000-memory.dmp
memory/3312-160-0x00000000090E0000-0x00000000090EA000-memory.dmp
memory/3312-161-0x00000000092F0000-0x0000000009386000-memory.dmp
memory/3928-142-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3928-151-0x00000000053E0000-0x00000000053E1000-memory.dmp
memory/3928-147-0x00000000748CE000-0x00000000748CF000-memory.dmp
memory/3928-166-0x0000000006630000-0x0000000006680000-memory.dmp