Analysis
- max time kernel
109s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20230621-en - resource tags
- submitted
27/06/2023, 06:59
General
- Target b39ec4e8104e06705f1eea981c75ebce.exe
- Size 351KB
- Sample230627-hr3bdsec5v
- SHA256 80ae62b5d4012d415c4cb598140cfb6ad485b07f712a0c40d31d6fb46c4dd922
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.sienkakupeste.com
-
Port
587
-
Username
-
Password
010203sienka++
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Drops startup file 2 IoCs
- 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
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b39ec4e8104e06705f1eea981c75ebce.exe"C:\Users\Admin\AppData\Local\Temp\b39ec4e8104e06705f1eea981c75ebce.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\b39ec4e8104e06705f1eea981c75ebce.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\anydesk.exe.exe'2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\b39ec4e8104e06705f1eea981c75ebce.exe"C:\Users\Admin\AppData\Local\Temp\b39ec4e8104e06705f1eea981c75ebce.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
b39ec4e8104e06705f1eea981c75ebce.exe.log
__PSScriptPolicyTest_kvoxrpgo.2et.ps1
memory/776-157-0x0000000005C00000-0x0000000005C1E000-memory.dmp
memory/776-160-0x0000000006130000-0x0000000006152000-memory.dmp
memory/776-159-0x00000000060D0000-0x00000000060EA000-memory.dmp
memory/776-138-0x0000000004670000-0x00000000046A6000-memory.dmp
memory/776-158-0x0000000006BE0000-0x0000000006C76000-memory.dmp
memory/776-156-0x0000000002250000-0x0000000002260000-memory.dmp
memory/776-142-0x0000000004CE0000-0x0000000005308000-memory.dmp
memory/776-143-0x0000000004C50000-0x0000000004C72000-memory.dmp
memory/776-145-0x0000000005500000-0x0000000005566000-memory.dmp
memory/3004-144-0x0000000005270000-0x00000000052D6000-memory.dmp
memory/3004-152-0x0000000005480000-0x0000000005490000-memory.dmp
memory/3004-139-0x0000000000400000-0x0000000000430000-memory.dmp
memory/3004-164-0x0000000006C80000-0x0000000006C8A000-memory.dmp
memory/3004-165-0x0000000006EF0000-0x0000000006F40000-memory.dmp
memory/3004-166-0x0000000007110000-0x00000000072D2000-memory.dmp
memory/3004-167-0x0000000005480000-0x0000000005490000-memory.dmp
memory/4376-134-0x0000000005D50000-0x00000000062F4000-memory.dmp
memory/4376-135-0x0000000005670000-0x0000000005702000-memory.dmp
memory/4376-133-0x0000000000C40000-0x0000000000C9E000-memory.dmp
memory/4376-137-0x0000000005620000-0x0000000005630000-memory.dmp
memory/4376-136-0x0000000005840000-0x00000000058DC000-memory.dmp