Analysis
- max time kernel
135s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20230221-en - resource tags
- submitted
13/04/2023, 06:49
General
- Target TransportLabel_6543076210065_pdf.exe
- Size 513KB
- Sample230413-hlb71sbc4y
- SHA256 8a03b8808de5dc90141e961a89350e8e50ad3f8410ec4e2d5b4fa64cfc310519
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.rediffrnail.com
-
Port
587
-
Username
-
Password
%wWJeDZ6
-
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 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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\TransportLabel_6543076210065_pdf.exe"C:\Users\Admin\AppData\Local\Temp\TransportLabel_6543076210065_pdf.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\TransportLabel_6543076210065_pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\TransportLabel_6543076210065_pdf.exe"C:\Users\Admin\AppData\Local\Temp\TransportLabel_6543076210065_pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
TransportLabel_6543076210065_pdf.exe.log
__PSScriptPolicyTest_4do2v4fm.yp2.ps1
memory/956-134-0x00000000050A0000-0x0000000005644000-memory.dmp
memory/956-135-0x0000000004AF0000-0x0000000004B82000-memory.dmp
memory/956-136-0x0000000004D60000-0x0000000004D70000-memory.dmp
memory/956-137-0x0000000004A80000-0x0000000004A8A000-memory.dmp
memory/956-138-0x0000000005650000-0x00000000057F6000-memory.dmp
memory/956-139-0x0000000004D60000-0x0000000004D70000-memory.dmp
memory/956-140-0x00000000068F0000-0x000000000698C000-memory.dmp
memory/956-133-0x0000000000050000-0x00000000000D6000-memory.dmp
memory/2624-175-0x0000000007C40000-0x00000000082BA000-memory.dmp
memory/2624-163-0x00000000074B0000-0x00000000074E2000-memory.dmp
memory/2624-146-0x0000000005420000-0x0000000005A48000-memory.dmp
memory/2624-147-0x0000000005B60000-0x0000000005B82000-memory.dmp
memory/2624-144-0x0000000004D50000-0x0000000004D86000-memory.dmp
memory/2624-148-0x0000000005C00000-0x0000000005C66000-memory.dmp
memory/2624-158-0x0000000004DE0000-0x0000000004DF0000-memory.dmp
memory/2624-183-0x0000000007920000-0x0000000007928000-memory.dmp
memory/2624-159-0x0000000004DE0000-0x0000000004DF0000-memory.dmp
memory/2624-161-0x00000000062F0000-0x000000000630E000-memory.dmp
memory/2624-162-0x0000000004DE0000-0x0000000004DF0000-memory.dmp
memory/2624-182-0x0000000007940000-0x000000000795A000-memory.dmp
memory/2624-164-0x0000000070B30000-0x0000000070B7C000-memory.dmp
memory/2624-174-0x0000000006840000-0x000000000685E000-memory.dmp
memory/2624-181-0x0000000007830000-0x000000000783E000-memory.dmp
memory/2624-176-0x0000000007600000-0x000000000761A000-memory.dmp
memory/2624-177-0x000000007F450000-0x000000007F460000-memory.dmp
memory/2624-180-0x0000000007880000-0x0000000007916000-memory.dmp
memory/2624-179-0x0000000007670000-0x000000000767A000-memory.dmp
memory/4968-178-0x0000000007050000-0x00000000070A0000-memory.dmp
memory/4968-141-0x0000000000400000-0x0000000000430000-memory.dmp
memory/4968-145-0x00000000055C0000-0x0000000005626000-memory.dmp
memory/4968-160-0x00000000055B0000-0x00000000055C0000-memory.dmp
memory/4968-186-0x00000000055B0000-0x00000000055C0000-memory.dmp