Analysis
- max time kernel
149s - max time network
162s - platform
windows10-2004_x64 - resource
win10v2004-20220310-en - submitted
23/03/2022, 20:02
General
- Target c286e639dafbbe2abd4eaf13d0d1a8c4.exe
- Size 1.0MB
- Sample220323-yr51aaaeb4
- SHA256 0e16551efbf1aacaf4bbc05653978d86979048f338f9fab4a123dd3831dcef4e
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.pisc.lk
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Port
587
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Username
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Password
PIsafeTY2021
Extracted
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agenttesla
-
Protocol
smtp
-
Host
mail.pisc.lk
-
Port
587
-
Username
-
Password
PIsafeTY2021
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Drops file in Drivers directory 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Accesses Microsoft Outlook profiles 1 TTPs 3 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.
- Modifies data under HKEY_USERS 6 IoCs
- Suspicious behavior: EnumeratesProcesses 13 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\c286e639dafbbe2abd4eaf13d0d1a8c4.exe"C:\Users\Admin\AppData\Local\Temp\c286e639dafbbe2abd4eaf13d0d1a8c4.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\lpocoEgWsnQ.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\lpocoEgWsnQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp398B.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager1⤵
- Modifies data under HKEY_USERS
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/480-154-0x0000000006770000-0x00000000067C0000-memory.dmp
memory/480-145-0x0000000000400000-0x000000000043A000-memory.dmp
memory/3920-135-0x0000000005960000-0x0000000005F04000-memory.dmp
memory/3920-136-0x0000000005450000-0x00000000054E2000-memory.dmp
memory/3920-137-0x00000000053D0000-0x00000000053DA000-memory.dmp
memory/3920-138-0x000000000B1D0000-0x000000000B26C000-memory.dmp
memory/3920-134-0x0000000000920000-0x0000000000A30000-memory.dmp
memory/4300-148-0x0000000005500000-0x0000000005566000-memory.dmp
memory/4300-153-0x0000000006200000-0x000000000621E000-memory.dmp
memory/4300-146-0x0000000004C90000-0x0000000004CB2000-memory.dmp
memory/4300-147-0x0000000004DC0000-0x0000000004E26000-memory.dmp
memory/4300-141-0x0000000004730000-0x0000000004766000-memory.dmp
memory/4300-149-0x0000000005BE0000-0x0000000005BFE000-memory.dmp
memory/4300-150-0x0000000004825000-0x0000000004827000-memory.dmp
memory/4300-151-0x0000000006240000-0x0000000006272000-memory.dmp
memory/4300-152-0x0000000070230000-0x000000007027C000-memory.dmp
memory/4300-143-0x0000000004E60000-0x0000000005488000-memory.dmp
memory/4300-155-0x00000000075C0000-0x0000000007C3A000-memory.dmp
memory/4300-156-0x0000000006F80000-0x0000000006F9A000-memory.dmp
memory/4300-157-0x0000000006FF0000-0x0000000006FFA000-memory.dmp
memory/4300-158-0x00000000071E0000-0x0000000007276000-memory.dmp
memory/4300-159-0x0000000007160000-0x000000000716E000-memory.dmp
memory/4300-160-0x0000000005FF0000-0x000000000600A000-memory.dmp
memory/4300-161-0x0000000005FE0000-0x0000000005FE8000-memory.dmp