Analysis
- max time kernel
145s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
07/06/2023, 13:35
General
- Target Invoice 38129337.exe
- Size 801KB
- Sample230607-qvnleabf21
- SHA256 dcd2a1a571f36c2739e2c358225fb7bfa4c8ff7379755aedcc68e1cbd71bc076
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.gmail.com
-
Port
587
-
Username
-
Password
iebtzpacgzyullvo
-
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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 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
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Invoice 38129337.exe"C:\Users\Admin\AppData\Local\Temp\Invoice 38129337.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\Roaming\KkPQlgqdilF.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\KkPQlgqdilF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2710.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Invoice 38129337.exe"C:\Users\Admin\AppData\Local\Temp\Invoice 38129337.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
__PSScriptPolicyTest_q0v5q2kp.wkz.ps1
tmp2710.tmp
memory/228-162-0x0000000004D80000-0x0000000004D90000-memory.dmp
memory/228-180-0x00000000075D0000-0x00000000075EA000-memory.dmp
memory/228-187-0x00000000078F0000-0x00000000078F8000-memory.dmp
memory/228-186-0x0000000007910000-0x000000000792A000-memory.dmp
memory/228-185-0x0000000007800000-0x000000000780E000-memory.dmp
memory/228-144-0x0000000004D00000-0x0000000004D36000-memory.dmp
memory/228-182-0x0000000007850000-0x00000000078E6000-memory.dmp
memory/228-146-0x00000000053C0000-0x00000000059E8000-memory.dmp
memory/228-181-0x0000000007640000-0x000000000764A000-memory.dmp
memory/228-148-0x0000000005310000-0x0000000005332000-memory.dmp
memory/228-150-0x0000000005AF0000-0x0000000005B56000-memory.dmp
memory/228-151-0x0000000005C50000-0x0000000005CB6000-memory.dmp
memory/228-179-0x0000000007C10000-0x000000000828A000-memory.dmp
memory/228-177-0x0000000006880000-0x000000000689E000-memory.dmp
memory/228-167-0x0000000071610000-0x000000007165C000-memory.dmp
memory/228-164-0x0000000004D80000-0x0000000004D90000-memory.dmp
memory/228-166-0x000000007FBF0000-0x000000007FC00000-memory.dmp
memory/228-165-0x0000000007280000-0x00000000072B2000-memory.dmp
memory/228-163-0x00000000062D0000-0x00000000062EE000-memory.dmp
memory/3756-136-0x0000000005140000-0x0000000005150000-memory.dmp
memory/3756-134-0x0000000005510000-0x0000000005AB4000-memory.dmp
memory/3756-133-0x00000000006B0000-0x000000000077E000-memory.dmp
memory/3756-135-0x0000000005000000-0x0000000005092000-memory.dmp
memory/3756-139-0x00000000068D0000-0x000000000696C000-memory.dmp
memory/3756-138-0x0000000005140000-0x0000000005150000-memory.dmp
memory/3756-137-0x0000000004FE0000-0x0000000004FEA000-memory.dmp
memory/3840-161-0x0000000003190000-0x00000000031A0000-memory.dmp
memory/3840-147-0x0000000000400000-0x0000000000430000-memory.dmp
memory/3840-183-0x0000000006EE0000-0x0000000006F30000-memory.dmp
memory/3840-184-0x0000000007100000-0x00000000072C2000-memory.dmp
memory/3840-190-0x0000000003190000-0x00000000031A0000-memory.dmp