Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 23:18
Static task
static1
Behavioral task
behavioral1
Sample
RFQ86437C.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
RFQ86437C.exe
Resource
win10v2004-20220414-en
General
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Target
RFQ86437C.exe
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Size
806KB
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MD5
bb177815728b49fd39053b643826b5cf
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SHA1
ca54b0b08a6f994e4594573ca4729cce88be33c9
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SHA256
5fac93ed0fd840cedfc559b7f2285ad384004e78fd53178b09bef6b13db08b84
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SHA512
ee2f8da0d4d9e00085ca368c38be1d9fa024fa541b094d26d44077202ffb8f6c9475fad02a5f8c293b93dc6b1838325017bf611e40da25ec44e4f47f546f5d82
Malware Config
Extracted
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
benneth1975@@@@@
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
benneth1975@@@@@
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
Processes:
resource yara_rule behavioral2/memory/504-130-0x0000000000230000-0x00000000002FC000-memory.dmp family_agenttesla C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exe family_agenttesla C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exe family_agenttesla behavioral2/memory/4448-139-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exe family_agenttesla -
Executes dropped EXE 2 IoCs
Processes:
intel.exeintel.exepid process 3592 intel.exe 4448 intel.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
RFQ86437C.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation RFQ86437C.exe -
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
Processes:
intel.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 intel.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 intel.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 intel.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
reg.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\intel = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\intel.exe" reg.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
intel.exedescription pid process target process PID 3592 set thread context of 4448 3592 intel.exe intel.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 27 IoCs
Processes:
RFQ86437C.exeintel.exeintel.exepid process 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 504 RFQ86437C.exe 3592 intel.exe 3592 intel.exe 3592 intel.exe 4448 intel.exe 4448 intel.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
RFQ86437C.exeintel.exeintel.exedescription pid process Token: SeDebugPrivilege 504 RFQ86437C.exe Token: SeDebugPrivilege 3592 intel.exe Token: SeDebugPrivilege 4448 intel.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
intel.exepid process 4448 intel.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
RFQ86437C.execmd.exeintel.exedescription pid process target process PID 504 wrote to memory of 5060 504 RFQ86437C.exe cmd.exe PID 504 wrote to memory of 5060 504 RFQ86437C.exe cmd.exe PID 504 wrote to memory of 5060 504 RFQ86437C.exe cmd.exe PID 5060 wrote to memory of 2820 5060 cmd.exe reg.exe PID 5060 wrote to memory of 2820 5060 cmd.exe reg.exe PID 5060 wrote to memory of 2820 5060 cmd.exe reg.exe PID 504 wrote to memory of 3592 504 RFQ86437C.exe intel.exe PID 504 wrote to memory of 3592 504 RFQ86437C.exe intel.exe PID 504 wrote to memory of 3592 504 RFQ86437C.exe intel.exe PID 3592 wrote to memory of 4448 3592 intel.exe intel.exe PID 3592 wrote to memory of 4448 3592 intel.exe intel.exe PID 3592 wrote to memory of 4448 3592 intel.exe intel.exe PID 3592 wrote to memory of 4448 3592 intel.exe intel.exe PID 3592 wrote to memory of 4448 3592 intel.exe intel.exe PID 3592 wrote to memory of 4448 3592 intel.exe intel.exe PID 3592 wrote to memory of 4448 3592 intel.exe intel.exe PID 3592 wrote to memory of 4448 3592 intel.exe intel.exe -
outlook_office_path 1 IoCs
Processes:
intel.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 intel.exe -
outlook_win_path 1 IoCs
Processes:
intel.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 intel.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\RFQ86437C.exe"C:\Users\Admin\AppData\Local\Temp\RFQ86437C.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v intel /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exeREG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v intel /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exe"3⤵
- Adds Run key to start application
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exe"3⤵
- Executes dropped EXE
- 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
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\intel.exe.logFilesize
1KB
MD5fc13935f3038bdde6cb484249fbff668
SHA1a4c32013e6d59bf1eb1a5119456965de191e62b8
SHA256de064c569a5f4edaf2da91d7bcb82bab06a35190b699cede1da0aa616a23d676
SHA5125817275af0f8a48eb1e008d39f62fb3582db9a2d21a806e9f9ee36fbfd799fb17e91f0e3686f4b236724fe78f14ae7f40cd3755f0ec0fb6734ce42f996b798f7
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exeFilesize
806KB
MD5bb177815728b49fd39053b643826b5cf
SHA1ca54b0b08a6f994e4594573ca4729cce88be33c9
SHA2565fac93ed0fd840cedfc559b7f2285ad384004e78fd53178b09bef6b13db08b84
SHA512ee2f8da0d4d9e00085ca368c38be1d9fa024fa541b094d26d44077202ffb8f6c9475fad02a5f8c293b93dc6b1838325017bf611e40da25ec44e4f47f546f5d82
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exeFilesize
806KB
MD5bb177815728b49fd39053b643826b5cf
SHA1ca54b0b08a6f994e4594573ca4729cce88be33c9
SHA2565fac93ed0fd840cedfc559b7f2285ad384004e78fd53178b09bef6b13db08b84
SHA512ee2f8da0d4d9e00085ca368c38be1d9fa024fa541b094d26d44077202ffb8f6c9475fad02a5f8c293b93dc6b1838325017bf611e40da25ec44e4f47f546f5d82
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\intel.exeFilesize
806KB
MD5bb177815728b49fd39053b643826b5cf
SHA1ca54b0b08a6f994e4594573ca4729cce88be33c9
SHA2565fac93ed0fd840cedfc559b7f2285ad384004e78fd53178b09bef6b13db08b84
SHA512ee2f8da0d4d9e00085ca368c38be1d9fa024fa541b094d26d44077202ffb8f6c9475fad02a5f8c293b93dc6b1838325017bf611e40da25ec44e4f47f546f5d82
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memory/504-130-0x0000000000230000-0x00000000002FC000-memory.dmpFilesize
816KB
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memory/504-131-0x0000000005950000-0x0000000005EF4000-memory.dmpFilesize
5.6MB
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memory/504-132-0x0000000005490000-0x0000000005522000-memory.dmpFilesize
584KB
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memory/2820-134-0x0000000000000000-mapping.dmp
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memory/3592-135-0x0000000000000000-mapping.dmp
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memory/4448-139-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/4448-138-0x0000000000000000-mapping.dmp
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memory/4448-142-0x00000000055B0000-0x000000000564C000-memory.dmpFilesize
624KB
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memory/4448-143-0x0000000006380000-0x00000000063E6000-memory.dmpFilesize
408KB
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memory/4448-144-0x0000000006A50000-0x0000000006AA0000-memory.dmpFilesize
320KB
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memory/5060-133-0x0000000000000000-mapping.dmp