Analysis
- max time kernel
135s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
13/06/2023, 12:26
General
- Target z1EReceipts.exe
- Size 853KB
- Sample230613-pl66qagf9w
- SHA256 6dfb7a6ea6312982a7aa2bd1247f6d27cd481c455abd98fe9548a47cb3d9102b
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtpout.secureserver.net
-
Port
587
-
Username
-
Password
eliandgrey12
-
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 1 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).
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\z1EReceipts.exe"C:\Users\Admin\AppData\Local\Temp\z1EReceipts.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\Local\Temp\z1EReceipts.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\z1EReceipts.exe"C:\Users\Admin\AppData\Local\Temp\z1EReceipts.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
Loading Replay Monitor...
Downloads
z1EReceipts.exe.log
__PSScriptPolicyTest_1xfifncv.zyp.ps1
memory/4000-175-0x00000000073C0000-0x00000000073DA000-memory.dmp
memory/4000-161-0x0000000006690000-0x00000000066C2000-memory.dmp
memory/4000-180-0x00000000076E0000-0x00000000076E8000-memory.dmp
memory/4000-179-0x0000000007700000-0x000000000771A000-memory.dmp
memory/4000-178-0x00000000075F0000-0x00000000075FE000-memory.dmp
memory/4000-177-0x0000000007640000-0x00000000076D6000-memory.dmp
memory/4000-142-0x0000000004B30000-0x0000000004B66000-memory.dmp
memory/4000-144-0x00000000051A0000-0x00000000057C8000-memory.dmp
memory/4000-160-0x0000000002780000-0x0000000002790000-memory.dmp
memory/4000-145-0x0000000005120000-0x0000000005142000-memory.dmp
memory/4000-151-0x0000000005840000-0x00000000058A6000-memory.dmp
memory/4000-176-0x0000000007430000-0x000000000743A000-memory.dmp
memory/4000-156-0x0000000002780000-0x0000000002790000-memory.dmp
memory/4000-157-0x0000000002780000-0x0000000002790000-memory.dmp
memory/4000-174-0x0000000007A00000-0x000000000807A000-memory.dmp
memory/4000-173-0x000000007EE60000-0x000000007EE70000-memory.dmp
memory/4000-172-0x0000000006670000-0x000000000668E000-memory.dmp
memory/4000-159-0x00000000060B0000-0x00000000060CE000-memory.dmp
memory/4000-162-0x0000000070CF0000-0x0000000070D3C000-memory.dmp
memory/4056-183-0x00000000055B0000-0x00000000055C0000-memory.dmp
memory/4056-158-0x00000000055B0000-0x00000000055C0000-memory.dmp
memory/4056-186-0x0000000006FB0000-0x0000000007172000-memory.dmp
memory/4056-143-0x00000000053E0000-0x0000000005446000-memory.dmp
memory/4056-185-0x0000000006D90000-0x0000000006DE0000-memory.dmp
memory/4056-139-0x0000000000400000-0x0000000000430000-memory.dmp
memory/4056-187-0x0000000006E20000-0x0000000006E2A000-memory.dmp
memory/4572-136-0x00000000054B0000-0x00000000054C0000-memory.dmp
memory/4572-133-0x0000000000B90000-0x0000000000C6A000-memory.dmp
memory/4572-134-0x0000000005BE0000-0x0000000006184000-memory.dmp
memory/4572-138-0x00000000065E0000-0x000000000667C000-memory.dmp
memory/4572-137-0x00000000054B0000-0x00000000054C0000-memory.dmp
memory/4572-135-0x00000000056D0000-0x0000000005762000-memory.dmp