Analysis
- max time kernel
149s - max time network
120s - platform
windows10_x64 - resource
win10v20210408 - submitted
10/09/2021, 04:19
General
- Target VIET RFQ H2323ED.exe
- Size 580KB
- Sample210910-exhmdsccfr
- SHA256 bce716f916d2a77fcd894883860b0eb78c69cabf7724e5eec0a097fa35f60d81
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.myremediez.com
-
Port
587
-
Username
-
Password
123123456
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.
- 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 11 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\VIET RFQ H2323ED.exe"C:\Users\Admin\AppData\Local\Temp\VIET RFQ H2323ED.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kcqDWuy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4C0D.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\VIET RFQ H2323ED.exe"C:\Users\Admin\AppData\Local\Temp\VIET RFQ H2323ED.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\VIET RFQ H2323ED.exe"C:\Users\Admin\AppData\Local\Temp\VIET RFQ H2323ED.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/996-121-0x0000000005A30000-0x0000000005A37000-memory.dmp
memory/996-122-0x0000000008C90000-0x0000000008CF2000-memory.dmp
memory/996-117-0x00000000054E0000-0x00000000054E1000-memory.dmp
memory/996-118-0x0000000005440000-0x00000000054D2000-memory.dmp
memory/996-119-0x0000000005580000-0x0000000005581000-memory.dmp
memory/996-120-0x0000000008A10000-0x0000000008A11000-memory.dmp
memory/996-116-0x0000000005AA0000-0x0000000005AA1000-memory.dmp
memory/996-123-0x000000000B430000-0x000000000B468000-memory.dmp
memory/996-114-0x0000000000C00000-0x0000000000C01000-memory.dmp
memory/1548-125-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1548-131-0x00000000052E0000-0x00000000052E1000-memory.dmp
memory/1548-132-0x0000000006030000-0x0000000006031000-memory.dmp
memory/1548-133-0x00000000060D0000-0x00000000060D1000-memory.dmp