Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - resource tags
- submitted
18/07/2022, 10:34
General
- Target Balance payment.exe
- Size 859KB
- Sample220718-ml4z9acfbm
- SHA256 abd0a804168a65ceb8827d34d11b58601eb5d947637ee9fdd2dffa3a4afc9961
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
edOn)Eb1
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
- 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 11 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Balance payment.exe"C:\Users\Admin\AppData\Local\Temp\Balance payment.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\zppRCbcKu.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\zppRCbcKu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3E12.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Balance payment.exe"C:\Users\Admin\AppData\Local\Temp\Balance payment.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp3E12.tmp
memory/3704-131-0x0000000005450000-0x00000000059F4000-memory.dmp
memory/3704-132-0x0000000004F40000-0x0000000004FD2000-memory.dmp
memory/3704-133-0x0000000004F00000-0x0000000004F0A000-memory.dmp
memory/3704-134-0x0000000008210000-0x00000000082AC000-memory.dmp
memory/3704-130-0x0000000000470000-0x000000000054E000-memory.dmp
memory/4088-156-0x0000000006C60000-0x0000000006CB0000-memory.dmp
memory/4088-141-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4600-142-0x0000000004A60000-0x0000000004A82000-memory.dmp
memory/4600-149-0x0000000007490000-0x0000000007B0A000-memory.dmp
memory/4600-137-0x0000000002200000-0x0000000002236000-memory.dmp
memory/4600-143-0x0000000004C00000-0x0000000004C66000-memory.dmp
memory/4600-144-0x00000000054D0000-0x0000000005536000-memory.dmp
memory/4600-145-0x0000000005B30000-0x0000000005B4E000-memory.dmp
memory/4600-146-0x00000000060E0000-0x0000000006112000-memory.dmp
memory/4600-147-0x0000000070760000-0x00000000707AC000-memory.dmp
memory/4600-148-0x0000000006120000-0x000000000613E000-memory.dmp
memory/4600-139-0x0000000004CB0000-0x00000000052D8000-memory.dmp
memory/4600-150-0x0000000006E30000-0x0000000006E4A000-memory.dmp
memory/4600-151-0x0000000006EA0000-0x0000000006EAA000-memory.dmp
memory/4600-152-0x00000000070B0000-0x0000000007146000-memory.dmp
memory/4600-153-0x0000000007060000-0x000000000706E000-memory.dmp
memory/4600-154-0x0000000007170000-0x000000000718A000-memory.dmp
memory/4600-155-0x0000000007150000-0x0000000007158000-memory.dmp