Analysis
- max time kernel
101s - max time network
110s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/02/2021, 10:55
General
- Target SecuriteInfo.com.Trojan.DownloaderNET.117.8754.5152.exe
- Size 22KB
- Sample210209-4zqc6vrefa
- SHA256 f05d2a28234ee0f0d9997e2d8101df57dfcb78bd48557fa70ddb65d6f64bf5e2
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.sardaplywood.com
-
Port
587
-
Username
-
Password
sup123st45
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- 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.
- 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 NtSetInformationThreadHideFromDebugger 15 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.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownloaderNET.117.8754.5152.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownloaderNET.117.8754.5152.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout 12⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout 13⤵
- Delays execution with timeout.exe
-
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownloaderNET.117.8754.5152.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownloaderNET.117.8754.5152.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/188-13-0x0000000000400000-0x000000000043C000-memory.dmp
memory/188-25-0x0000000005441000-0x0000000005442000-memory.dmp
memory/188-24-0x0000000006530000-0x0000000006531000-memory.dmp
memory/188-23-0x0000000006490000-0x0000000006491000-memory.dmp
memory/188-22-0x00000000060B0000-0x00000000060B1000-memory.dmp
memory/188-21-0x0000000005800000-0x0000000005801000-memory.dmp
memory/188-20-0x0000000005440000-0x0000000005441000-memory.dmp
memory/188-15-0x0000000073BA0000-0x000000007428E000-memory.dmp
memory/3928-12-0x00000000060B0000-0x00000000060B1000-memory.dmp
memory/3928-2-0x0000000073BA0000-0x000000007428E000-memory.dmp
memory/3928-9-0x0000000005510000-0x0000000005557000-memory.dmp
memory/3928-8-0x0000000005230000-0x0000000005231000-memory.dmp
memory/3928-7-0x0000000005480000-0x0000000005481000-memory.dmp
memory/3928-6-0x0000000005290000-0x0000000005291000-memory.dmp
memory/3928-5-0x0000000004AE0000-0x0000000004AE1000-memory.dmp
memory/3928-3-0x00000000000A0000-0x00000000000A1000-memory.dmp