Analysis
- max time kernel
128s - max time network
125s - platform
windows10_x64 - resource
win10-en-20211104 - submitted
24/11/2021, 14:03
Static task
static1
Behavioral task
behavioral1
Sample
50008248-SWIFT Copy, pdf ..exe
Resource
win7-en-20211014
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
50008248-SWIFT Copy, pdf ..exe
Resource
win10-en-20211104
0 signatures
0 seconds
General
- Target 50008248-SWIFT Copy, pdf ..exe
- Size 633KB
- Sample211124-rcpleschak
- SHA256 e644c575f18d16b4e432bc02d45c35aff42affc618f7c08e3d9139405e0cea7c
- MD5 8706a44b45140807c8af82c69f192e92
- SHA1 6e1b6f744fd21ed3ea0853c98b49adedf97561fc
- SHA512 84563618abb822283682e9999a93e8dfdfb97206930e1ebdce838895b2f7b0b1e92b5662f33cc4af681828b28c1de6caa3d02dfaf78c8134286fa559efe788a1
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
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agenttesla
Credentials
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Protocol
smtp
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Host
smtp.yandex.com
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Port
587
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Username
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Password
graceofgod@amen
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
resource yara_rule behavioral2/memory/1016-134-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/1016-135-0x00000000004375EE-mapping.dmp family_agenttesla behavioral2/memory/1016-148-0x00000000052A0000-0x000000000579E000-memory.dmp family_agenttesla - Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1012 set thread context of 1016 1012 50008248-SWIFT Copy, pdf ..exe 73 - 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.
pid Process 3680 schtasks.exe - Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 3536 powershell.exe 1016 RegSvcs.exe 1016 RegSvcs.exe 3536 powershell.exe 3536 powershell.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3536 powershell.exe Token: SeDebugPrivilege 1016 RegSvcs.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1016 RegSvcs.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1012 wrote to memory of 3536 1012 50008248-SWIFT Copy, pdf ..exe 69 PID 1012 wrote to memory of 3536 1012 50008248-SWIFT Copy, pdf ..exe 69 PID 1012 wrote to memory of 3536 1012 50008248-SWIFT Copy, pdf ..exe 69 PID 1012 wrote to memory of 3680 1012 50008248-SWIFT Copy, pdf ..exe 71 PID 1012 wrote to memory of 3680 1012 50008248-SWIFT Copy, pdf ..exe 71 PID 1012 wrote to memory of 3680 1012 50008248-SWIFT Copy, pdf ..exe 71 PID 1012 wrote to memory of 1016 1012 50008248-SWIFT Copy, pdf ..exe 73 PID 1012 wrote to memory of 1016 1012 50008248-SWIFT Copy, pdf ..exe 73 PID 1012 wrote to memory of 1016 1012 50008248-SWIFT Copy, pdf ..exe 73 PID 1012 wrote to memory of 1016 1012 50008248-SWIFT Copy, pdf ..exe 73 PID 1012 wrote to memory of 1016 1012 50008248-SWIFT Copy, pdf ..exe 73 PID 1012 wrote to memory of 1016 1012 50008248-SWIFT Copy, pdf ..exe 73 PID 1012 wrote to memory of 1016 1012 50008248-SWIFT Copy, pdf ..exe 73 PID 1012 wrote to memory of 1016 1012 50008248-SWIFT Copy, pdf ..exe 73 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\50008248-SWIFT Copy, pdf ..exe"C:\Users\Admin\AppData\Local\Temp\50008248-SWIFT Copy, pdf ..exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1012 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HRcpXbkZrxjl.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3536
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HRcpXbkZrxjl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2055.tmp"2⤵
- Creates scheduled task(s)
PID:3680
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1016
-