Analysis
- max time kernel
125s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
01/02/2024, 03:24
General
- Target SecuriteInfo.com.W32.MSIL_Kryptik.DWR.gen.Eldorado.31590.11926.exe
- Size 757KB
- Sample240201-dx2jtsacd3
- SHA256 87e7b69fb53fe4082c3ecc4c8b7f15020d3fee16c0bc2b3675ab814cbbbab0df
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.coperwire.com
-
Port
587
-
Username
-
Password
ogadiMMA1!
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.coperwire.com
-
Port
587
-
Username
-
Password
ogadiMMA1!
-
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 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 3 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 12 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.DWR.gen.Eldorado.31590.11926.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.DWR.gen.Eldorado.31590.11926.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\SecuriteInfo.com.W32.MSIL_Kryptik.DWR.gen.Eldorado.31590.11926.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\RnaSevrQNVroCZ.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RnaSevrQNVroCZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9C6F.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.DWR.gen.Eldorado.31590.11926.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.DWR.gen.Eldorado.31590.11926.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
StartupProfileData-NonInteractive
__PSScriptPolicyTest_dwijeftw.13y.ps1
tmp9C6F.tmp
memory/1276-84-0x00000000081E0000-0x000000000885A000-memory.dmp
memory/1276-21-0x0000000005440000-0x0000000005450000-memory.dmp
memory/1276-54-0x0000000006900000-0x000000000694C000-memory.dmp
memory/1276-39-0x0000000006290000-0x00000000065E4000-memory.dmp
memory/1276-69-0x0000000071140000-0x000000007118C000-memory.dmp
memory/1276-97-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/1276-90-0x0000000007EE0000-0x0000000007EFA000-memory.dmp
memory/1276-53-0x0000000006860000-0x000000000687E000-memory.dmp
memory/1276-91-0x0000000007EC0000-0x0000000007EC8000-memory.dmp
memory/1276-89-0x0000000007DE0000-0x0000000007DF4000-memory.dmp
memory/1276-17-0x0000000002F80000-0x0000000002FB6000-memory.dmp
memory/1276-19-0x0000000005A80000-0x00000000060A8000-memory.dmp
memory/1276-18-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/1276-73-0x0000000005440000-0x0000000005450000-memory.dmp
memory/1276-20-0x0000000005440000-0x0000000005450000-memory.dmp
memory/1276-87-0x0000000007DA0000-0x0000000007DB1000-memory.dmp
memory/1276-86-0x0000000007E20000-0x0000000007EB6000-memory.dmp
memory/1276-82-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/1276-70-0x000000007F6A0000-0x000000007F6B0000-memory.dmp
memory/1276-27-0x00000000061B0000-0x0000000006216000-memory.dmp
memory/1276-28-0x0000000006220000-0x0000000006286000-memory.dmp
memory/3688-52-0x00000000058C0000-0x00000000058D0000-memory.dmp
memory/3688-99-0x0000000006F60000-0x0000000006FB0000-memory.dmp
memory/3688-100-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/3688-34-0x0000000000400000-0x0000000000442000-memory.dmp
memory/3688-50-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/3688-101-0x00000000058C0000-0x00000000058D0000-memory.dmp
memory/4360-10-0x00000000069C0000-0x0000000006A44000-memory.dmp
memory/4360-51-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/4360-4-0x0000000005450000-0x0000000005460000-memory.dmp
memory/4360-5-0x0000000005480000-0x000000000548A000-memory.dmp
memory/4360-6-0x0000000005540000-0x00000000055DC000-memory.dmp
memory/4360-7-0x0000000005650000-0x000000000566C000-memory.dmp
memory/4360-1-0x0000000000830000-0x00000000008F2000-memory.dmp
memory/4360-8-0x0000000005790000-0x000000000579E000-memory.dmp
memory/4360-2-0x00000000057C0000-0x0000000005D64000-memory.dmp
memory/4360-9-0x00000000057A0000-0x00000000057B4000-memory.dmp
memory/4360-11-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/4360-16-0x0000000005450000-0x0000000005460000-memory.dmp
memory/4360-3-0x00000000052B0000-0x0000000005342000-memory.dmp
memory/4360-0-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/5108-57-0x0000000071140000-0x000000007118C000-memory.dmp
memory/5108-26-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/5108-56-0x00000000078B0000-0x00000000078E2000-memory.dmp
memory/5108-23-0x00000000054B0000-0x00000000054C0000-memory.dmp
memory/5108-22-0x00000000054B0000-0x00000000054C0000-memory.dmp
memory/5108-88-0x0000000007E70000-0x0000000007E7E000-memory.dmp
memory/5108-71-0x0000000007AF0000-0x0000000007B93000-memory.dmp
memory/5108-83-0x0000000007C40000-0x0000000007C5A000-memory.dmp
memory/5108-85-0x0000000007CB0000-0x0000000007CBA000-memory.dmp
memory/5108-96-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/5108-68-0x00000000054B0000-0x00000000054C0000-memory.dmp
memory/5108-67-0x0000000007870000-0x000000000788E000-memory.dmp
memory/5108-25-0x0000000005950000-0x0000000005972000-memory.dmp
memory/5108-55-0x000000007F090000-0x000000007F0A0000-memory.dmp