Analysis
- max time kernel
85s - max time network
66s - platform
windows7_x64 - resource
win7-20220414-en - submitted
10/05/2022, 04:39
General
- Target SecuriteInfo.com.Scr.Malcodegdn30.26571.exe
- Size 920KB
- Sample220510-e9yt5sehf5
- SHA256 42538c71c23cda915aff772266da886e27beeadec042ccf17c5ebb896b56a537
Malware Config
Extracted
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Protocol
smtp
-
Host
smtp.tranpotescamdonic.us
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Port
587
-
Username
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Password
aDa(NsK$5
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.tranpotescamdonic.us
-
Port
587
-
Username
-
Password
aDa(NsK$5
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
- 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
- Adds Run key to start application 2 TTPs 1 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 25 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Scr.Malcodegdn30.26571.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Scr.Malcodegdn30.26571.exe"1⤵
- 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\hXTglhXgnFGIe.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\hXTglhXgnFGIe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC063.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Scr.Malcodegdn30.26571.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Scr.Malcodegdn30.26571.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Scr.Malcodegdn30.26571.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Scr.Malcodegdn30.26571.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Scr.Malcodegdn30.26571.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Scr.Malcodegdn30.26571.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmpC063.tmp
memory/468-64-0x0000000000400000-0x000000000043A000-memory.dmp
memory/468-74-0x0000000000400000-0x000000000043A000-memory.dmp
memory/468-72-0x0000000000400000-0x000000000043A000-memory.dmp
memory/468-69-0x0000000000400000-0x000000000043A000-memory.dmp
memory/468-68-0x0000000000400000-0x000000000043A000-memory.dmp
memory/468-67-0x0000000000400000-0x000000000043A000-memory.dmp
memory/468-65-0x0000000000400000-0x000000000043A000-memory.dmp
memory/1260-63-0x0000000004BA0000-0x0000000004BDA000-memory.dmp
memory/1260-54-0x0000000000120000-0x000000000020A000-memory.dmp
memory/1260-62-0x0000000002250000-0x0000000002256000-memory.dmp
memory/1260-57-0x00000000052D0000-0x000000000534E000-memory.dmp
memory/1260-56-0x0000000000300000-0x000000000030E000-memory.dmp
memory/1260-55-0x00000000753C1000-0x00000000753C3000-memory.dmp
memory/2000-76-0x000000006ECB0000-0x000000006F25B000-memory.dmp