Analysis
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max time kernel
129s -
max time network
126s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
21-10-2021 09:26
General
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Target
PAYMENT FOR OVERDUE INVOICE1.exe
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Size
480KB
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MD5
b34e1e34c7bca027e497a2c98b87a4d3
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SHA1
80bd380e72a110e51dde2e0a0492b2f9ce61a6dd
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SHA256
ca08070182c0182cabcae7e0fb3aea143e41d43e4bde4bd21dc04838d4bd417e
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SHA512
da37ac7697f9346bde68781ff7038ad7e6dde6f7485bdaa01553d4d2c7b9bfbdef1e18012cd0f806f39b5d220746549c57be0eae26e2efd90bb63947948343e4
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.privateemail.com - Port:
587 - Username:
naki1@china-tianli.co - Password:
mmm777
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 5 IoCs
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 13 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PAYMENT FOR OVERDUE INVOICE1.exe"C:\Users\Admin\AppData\Local\Temp\PAYMENT FOR OVERDUE INVOICE1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xsFqGJAH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5428.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PAYMENT FOR OVERDUE INVOICE1.exe"C:\Users\Admin\AppData\Local\Temp\PAYMENT FOR OVERDUE INVOICE1.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/744-60-0x0000000000000000-mapping.dmp
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memory/1156-64-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1156-66-0x000000000043782E-mapping.dmp
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memory/1156-70-0x0000000004B11000-0x0000000004B12000-memory.dmpFilesize
4KB
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memory/1156-69-0x0000000004B10000-0x0000000004B11000-memory.dmpFilesize
4KB
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memory/1156-67-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1156-61-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1156-62-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1156-63-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1156-65-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1756-54-0x0000000000150000-0x0000000000151000-memory.dmpFilesize
4KB
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memory/1756-57-0x0000000000270000-0x0000000000277000-memory.dmpFilesize
28KB
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memory/1756-56-0x0000000076961000-0x0000000076963000-memory.dmpFilesize
8KB
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memory/1756-59-0x00000000051A0000-0x00000000051F8000-memory.dmpFilesize
352KB
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memory/1756-58-0x0000000004CE0000-0x0000000004CE1000-memory.dmpFilesize
4KB