Analysis
- max time kernel
148s - max time network
151s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
29/09/2021, 12:37
General
- Target REQUEST FOR QUOTATION CPH1-9001-BKG CPH1-9001-BKG(2) CPH1-9001-BKG(9) CPH1-9001-BKG(3) CPH1-9001-BKG(4).exe
- Size 1002KB
- Sample210929-pthhbsfbbk
- SHA256 45a94c022c5a3528accc736d685c467a95a9fd6aef4c26f8f52ee47f5b66cc0e
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.atlasmat.com
-
Port
587
-
Username
-
Password
9gf04d0p5KWw
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.
- 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\REQUEST FOR QUOTATION CPH1-9001-BKG CPH1-9001-BKG(2) CPH1-9001-BKG(9) CPH1-9001-BKG(3) CPH1-9001-BKG(4).exe"C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION CPH1-9001-BKG CPH1-9001-BKG(2) CPH1-9001-BKG(9) CPH1-9001-BKG(3) CPH1-9001-BKG(4).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\eILcgpTbHK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp202B.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION CPH1-9001-BKG CPH1-9001-BKG(2) CPH1-9001-BKG(9) CPH1-9001-BKG(3) CPH1-9001-BKG(4).exe"{path}"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/3320-124-0x00000000083A0000-0x000000000841F000-memory.dmp
memory/3320-125-0x0000000007F60000-0x0000000007F98000-memory.dmp
memory/3320-119-0x0000000005A00000-0x0000000005A01000-memory.dmp
memory/3320-120-0x0000000005A00000-0x0000000005EFE000-memory.dmp
memory/3320-121-0x0000000005AE0000-0x0000000005AE1000-memory.dmp
memory/3320-122-0x0000000005BE0000-0x0000000005BE1000-memory.dmp
memory/3320-123-0x0000000001A30000-0x0000000001A3E000-memory.dmp
memory/3320-115-0x0000000000FD0000-0x0000000000FD1000-memory.dmp
memory/3320-118-0x0000000005F00000-0x0000000005F01000-memory.dmp
memory/3320-117-0x0000000005960000-0x0000000005961000-memory.dmp
memory/3508-134-0x0000000005810000-0x0000000005D0E000-memory.dmp
memory/3508-128-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3508-135-0x0000000005890000-0x0000000005891000-memory.dmp
memory/3508-136-0x0000000006470000-0x0000000006471000-memory.dmp
memory/3508-139-0x0000000005810000-0x0000000005D0E000-memory.dmp