Analysis
- max time kernel
126s - max time network
113s - platform
windows10_x64 - resource
win10v20210410 - submitted
23/07/2021, 17:15
General
- Target 7bfe716bc6d8c39636fbde3c5f0cd75c.exe
- Size 507KB
- Sample210723-e722rnfcga
- SHA256 98c1ad1d20f0e66299a17c1eb48b23ea1bbd40c056a0df091fd59181d1da013e
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.spamora.net
-
Port
587
-
Username
-
Password
Emotion22
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 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.
- Adds Run key to start application 2 TTPs 1 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.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7bfe716bc6d8c39636fbde3c5f0cd75c.exe"C:\Users\Admin\AppData\Local\Temp\7bfe716bc6d8c39636fbde3c5f0cd75c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SajFuIjFg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp961B.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\7bfe716bc6d8c39636fbde3c5f0cd75c.exe"{path}"2⤵
- Adds Run key to start application
- 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/2472-141-0x00000000052D0000-0x00000000057CE000-memory.dmp
memory/2472-138-0x0000000005F30000-0x0000000005F31000-memory.dmp
memory/2472-137-0x0000000005790000-0x0000000005791000-memory.dmp
memory/2472-136-0x00000000052D0000-0x00000000057CE000-memory.dmp
memory/2472-129-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3944-120-0x000000000B260000-0x000000000B261000-memory.dmp
memory/3944-125-0x0000000006770000-0x00000000067F2000-memory.dmp
memory/3944-126-0x0000000005790000-0x00000000057D4000-memory.dmp
memory/3944-124-0x0000000005E90000-0x0000000005E91000-memory.dmp
memory/3944-123-0x0000000005DE0000-0x0000000005DE2000-memory.dmp
memory/3944-121-0x0000000005700000-0x0000000005701000-memory.dmp
memory/3944-122-0x0000000005703000-0x0000000005705000-memory.dmp
memory/3944-114-0x0000000000D40000-0x0000000000D41000-memory.dmp
memory/3944-119-0x0000000005600000-0x0000000005601000-memory.dmp
memory/3944-118-0x0000000005810000-0x0000000005811000-memory.dmp
memory/3944-117-0x000000000A090000-0x000000000A091000-memory.dmp
memory/3944-116-0x0000000005590000-0x00000000055EE000-memory.dmp