Analysis
- max time kernel
145s - max time network
115s - platform
windows10_x64 - resource
win10v20210410 - submitted
09/08/2021, 05:16
General
- Target #RFQ ORDER-HYODA KM-2-U80-510.exe
- Size 919KB
- Sample210809-v17v7szvrs
- SHA256 2faad4424cd10070c504f3ed9f34fe608e5b244a3ca08d1926be1757ec0c59c5
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.karanex.com
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Port
587
-
Username
-
Password
Oi&-tmhj@d5v
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs
- Looks for VMWare Tools registry key 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- 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.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- 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 14 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 5 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\#RFQ ORDER-HYODA KM-2-U80-510.exe"C:\Users\Admin\AppData\Local\Temp\#RFQ ORDER-HYODA KM-2-U80-510.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\#RFQ ORDER-HYODA KM-2-U80-510.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CSIZkw.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CSIZkw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBE16.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CSIZkw.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\#RFQ ORDER-HYODA KM-2-U80-510.exe"C:\Users\Admin\AppData\Local\Temp\#RFQ ORDER-HYODA KM-2-U80-510.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
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C:\Users\Admin\AppData\Local\Temp\#RFQ ORDER-HYODA KM-2-U80-510.exe"C:\Users\Admin\AppData\Local\Temp\#RFQ ORDER-HYODA KM-2-U80-510.exe"2⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2760-264-0x000000007F5B0000-0x000000007F5B1000-memory.dmp
memory/2760-257-0x0000000006EE3000-0x0000000006EE4000-memory.dmp
memory/2760-172-0x0000000006EE2000-0x0000000006EE3000-memory.dmp
memory/2760-171-0x0000000006EE0000-0x0000000006EE1000-memory.dmp
memory/2940-192-0x0000000008B90000-0x0000000008BC3000-memory.dmp
memory/2940-152-0x0000000007DC0000-0x0000000007DC1000-memory.dmp
memory/2940-261-0x0000000001143000-0x0000000001144000-memory.dmp
memory/2940-129-0x0000000000C00000-0x0000000000C01000-memory.dmp
memory/2940-130-0x0000000006E50000-0x0000000006E51000-memory.dmp
memory/2940-207-0x000000007F480000-0x000000007F481000-memory.dmp
memory/2940-131-0x0000000006AE0000-0x0000000006AE1000-memory.dmp
memory/2940-160-0x0000000007BA0000-0x0000000007BA1000-memory.dmp
memory/2940-134-0x0000000006B80000-0x0000000006B81000-memory.dmp
memory/2940-136-0x0000000007480000-0x0000000007481000-memory.dmp
memory/2940-150-0x0000000001142000-0x0000000001143000-memory.dmp
memory/2940-146-0x0000000006E00000-0x0000000006E01000-memory.dmp
memory/2940-148-0x0000000001140000-0x0000000001141000-memory.dmp
memory/3180-170-0x0000000005280000-0x000000000577E000-memory.dmp
memory/3180-147-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3700-114-0x0000000000660000-0x0000000000661000-memory.dmp
memory/3700-120-0x0000000004F50000-0x0000000004F51000-memory.dmp
memory/3700-124-0x0000000009BE0000-0x0000000009C18000-memory.dmp
memory/3700-116-0x0000000004F90000-0x0000000004F91000-memory.dmp
memory/3700-123-0x00000000074E0000-0x000000000757C000-memory.dmp
memory/3700-122-0x0000000005350000-0x0000000005361000-memory.dmp
memory/3700-121-0x0000000005230000-0x0000000005231000-memory.dmp
memory/3700-117-0x0000000005530000-0x0000000005531000-memory.dmp
memory/3700-118-0x00000000050D0000-0x00000000050D1000-memory.dmp
memory/3700-119-0x0000000005030000-0x000000000552E000-memory.dmp
memory/3700-126-0x000000000D4B0000-0x000000000D4B1000-memory.dmp
memory/3848-219-0x0000000008EB0000-0x0000000008EB1000-memory.dmp
memory/3848-254-0x0000000000F83000-0x0000000000F84000-memory.dmp
memory/3848-154-0x0000000000F82000-0x0000000000F83000-memory.dmp
memory/3848-210-0x000000007F2B0000-0x000000007F2B1000-memory.dmp
memory/3848-208-0x0000000008D50000-0x0000000008D51000-memory.dmp
memory/3848-153-0x0000000000F80000-0x0000000000F81000-memory.dmp