Analysis
- max time kernel
90s - max time network
116s - platform
windows10_x64 - resource
win10 - submitted
30/08/2020, 06:01
General
- Target HBL-BLCOPY.EXCELL.XLs.vr.exe
- Size 546KB
- Sample200830-fx94mt4kvj
- SHA256 7198765cf784d75d7149e2253af7938eaf1598b960e65351bc0959633f503792
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
qwerty123@
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 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
- Drops file in Windows directory 1 IoCs
- Modifies data under HKEY_USERS 5 IoCs
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\HBL-BLCOPY.EXCELL.XLs.vr.exe"C:\Users\Admin\AppData\Local\Temp\HBL-BLCOPY.EXCELL.XLs.vr.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\HBL-BLCOPY.EXCELL.XLs.vr.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2168-7-0x0000000008020000-0x0000000008091000-memory.dmp
memory/2168-9-0x000000000A8D0000-0x000000000A92C000-memory.dmp
memory/2168-4-0x0000000004A10000-0x0000000004A11000-memory.dmp
memory/2168-5-0x0000000004AB0000-0x0000000004AB1000-memory.dmp
memory/2168-6-0x0000000004FA0000-0x0000000004FA3000-memory.dmp
memory/2168-0-0x0000000073670000-0x0000000073D5E000-memory.dmp
memory/2168-8-0x0000000008140000-0x0000000008141000-memory.dmp
memory/2168-3-0x0000000004FE0000-0x0000000004FE1000-memory.dmp
memory/2168-1-0x0000000000160000-0x0000000000161000-memory.dmp
memory/2196-10-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2196-13-0x0000000073670000-0x0000000073D5E000-memory.dmp
memory/2196-18-0x0000000005170000-0x0000000005171000-memory.dmp
memory/2196-19-0x0000000005C90000-0x0000000005C91000-memory.dmp