Analysis
- max time kernel
117s - max time network
118s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
04/04/2024, 11:04
General
- Target 067a46e90fad398473f072d491e837c8af6ba4392f9a4df9939e8650ad11ed93.exe
- Size 720KB
- Sample240404-m59d3sdb3z
- SHA256 067a46e90fad398473f072d491e837c8af6ba4392f9a4df9939e8650ad11ed93
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
$F%bWyL5
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
$F%bWyL5
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 1 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).
- 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 10 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\067a46e90fad398473f072d491e837c8af6ba4392f9a4df9939e8650ad11ed93.exe"C:\Users\Admin\AppData\Local\Temp\067a46e90fad398473f072d491e837c8af6ba4392f9a4df9939e8650ad11ed93.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\067a46e90fad398473f072d491e837c8af6ba4392f9a4df9939e8650ad11ed93.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZSXyTXtqAJRR.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZSXyTXtqAJRR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5B3F.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\067a46e90fad398473f072d491e837c8af6ba4392f9a4df9939e8650ad11ed93.exe"C:\Users\Admin\AppData\Local\Temp\067a46e90fad398473f072d491e837c8af6ba4392f9a4df9939e8650ad11ed93.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_nwnqlnmy.bzy.ps1
tmp5B3F.tmp
memory/920-101-0x0000000005900000-0x0000000005910000-memory.dmp
memory/920-100-0x0000000074640000-0x0000000074DF0000-memory.dmp
memory/920-99-0x0000000007030000-0x0000000007080000-memory.dmp
memory/920-51-0x0000000074640000-0x0000000074DF0000-memory.dmp
memory/920-34-0x0000000000400000-0x0000000000442000-memory.dmp
memory/1928-49-0x0000000005BB0000-0x0000000005F04000-memory.dmp
memory/1928-58-0x0000000074EA0000-0x0000000074EEC000-memory.dmp
memory/1928-98-0x0000000074640000-0x0000000074DF0000-memory.dmp
memory/1928-91-0x00000000077B0000-0x00000000077B8000-memory.dmp
memory/1928-17-0x0000000002840000-0x0000000002876000-memory.dmp
memory/1928-18-0x0000000074640000-0x0000000074DF0000-memory.dmp
memory/1928-19-0x0000000004ED0000-0x0000000004EE0000-memory.dmp
memory/1928-21-0x0000000005510000-0x0000000005B38000-memory.dmp
memory/1928-20-0x0000000004ED0000-0x0000000004EE0000-memory.dmp
memory/1928-90-0x00000000077D0000-0x00000000077EA000-memory.dmp
memory/1928-87-0x00000000076C0000-0x00000000076CE000-memory.dmp
memory/1928-86-0x0000000007690000-0x00000000076A1000-memory.dmp
memory/1928-85-0x0000000007710000-0x00000000077A6000-memory.dmp
memory/1928-28-0x0000000005B40000-0x0000000005BA6000-memory.dmp
memory/1928-84-0x0000000007500000-0x000000000750A000-memory.dmp
memory/1928-83-0x0000000007490000-0x00000000074AA000-memory.dmp
memory/1928-26-0x0000000005330000-0x0000000005396000-memory.dmp
memory/1928-81-0x0000000004ED0000-0x0000000004EE0000-memory.dmp
memory/1928-80-0x0000000007350000-0x00000000073F3000-memory.dmp
memory/1928-79-0x0000000004ED0000-0x0000000004EE0000-memory.dmp
memory/1928-56-0x000000007EF70000-0x000000007EF80000-memory.dmp
memory/2416-5-0x00000000051B0000-0x00000000051BA000-memory.dmp
memory/2416-0-0x0000000074640000-0x0000000074DF0000-memory.dmp
memory/2416-1-0x0000000000560000-0x0000000000616000-memory.dmp
memory/2416-2-0x00000000054C0000-0x0000000005A64000-memory.dmp
memory/2416-27-0x0000000004FC0000-0x0000000004FD0000-memory.dmp
memory/2416-3-0x0000000004FF0000-0x0000000005082000-memory.dmp
memory/2416-48-0x0000000004FC0000-0x0000000004FD0000-memory.dmp
memory/2416-8-0x0000000004FC0000-0x0000000004FD0000-memory.dmp
memory/2416-6-0x0000000004FC0000-0x0000000004FD0000-memory.dmp
memory/2416-9-0x0000000006180000-0x000000000618C000-memory.dmp
memory/2416-11-0x00000000061E0000-0x0000000006264000-memory.dmp
memory/2416-7-0x0000000006F70000-0x0000000006F86000-memory.dmp
memory/2416-4-0x0000000004FC0000-0x0000000004FD0000-memory.dmp
memory/2416-52-0x0000000074640000-0x0000000074DF0000-memory.dmp
memory/2416-10-0x0000000006190000-0x000000000619E000-memory.dmp
memory/2416-12-0x0000000009380000-0x000000000941C000-memory.dmp
memory/2416-22-0x0000000074640000-0x0000000074DF0000-memory.dmp
memory/4108-55-0x00000000076A0000-0x00000000076D2000-memory.dmp
memory/4108-89-0x0000000007C40000-0x0000000007C54000-memory.dmp
memory/4108-24-0x0000000074640000-0x0000000074DF0000-memory.dmp
memory/4108-25-0x0000000005720000-0x0000000005742000-memory.dmp
memory/4108-97-0x0000000074640000-0x0000000074DF0000-memory.dmp
memory/4108-53-0x00000000066D0000-0x00000000066EE000-memory.dmp
memory/4108-82-0x0000000008040000-0x00000000086BA000-memory.dmp
memory/4108-78-0x0000000006CB0000-0x0000000006CCE000-memory.dmp
memory/4108-57-0x0000000074EA0000-0x0000000074EEC000-memory.dmp
memory/4108-59-0x000000007FBE0000-0x000000007FBF0000-memory.dmp
memory/4108-54-0x0000000006A70000-0x0000000006ABC000-memory.dmp