Analysis
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max time kernel
139s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 00:09
Static task
static1
Behavioral task
behavioral1
Sample
Doc_072720206446.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
Doc_072720206446.exe
Resource
win10v2004-20220414-en
General
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Target
Doc_072720206446.exe
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Size
527KB
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MD5
e4779604597264d5b3027188b7fd08fa
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SHA1
095aca48d9e6a83bc8d327457e6b2dffdcb01afd
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SHA256
b2755efb7d2ef6f5bc7214e4d02dbd6c48cd299f5477924501e97eee7a088b0a
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SHA512
0c93b0a8544468548714fbdbb0545243de9462702b6fbf6a909aa3eb3ac06be0e787dc47cdb0f6ad57e6f04174d26d6339493163b0da656994a08518d51fa2af
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
kelechi12
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1476-62-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1476-63-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1476-64-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1476-65-0x0000000000446F8E-mapping.dmp family_agenttesla behavioral1/memory/1476-67-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1476-69-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
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:
Doc_072720206446.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Doc_072720206446.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Doc_072720206446.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Doc_072720206446.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Doc_072720206446.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\fWupL = "C:\\Users\\Admin\\AppData\\Roaming\\fWupL\\fWupL.exe" Doc_072720206446.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Doc_072720206446.exedescription pid process target process PID 1880 set thread context of 1476 1880 Doc_072720206446.exe Doc_072720206446.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
Doc_072720206446.exeDoc_072720206446.exepid process 1880 Doc_072720206446.exe 1880 Doc_072720206446.exe 1476 Doc_072720206446.exe 1476 Doc_072720206446.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Doc_072720206446.exeDoc_072720206446.exedescription pid process Token: SeDebugPrivilege 1880 Doc_072720206446.exe Token: SeDebugPrivilege 1476 Doc_072720206446.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Doc_072720206446.exepid process 1476 Doc_072720206446.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
Doc_072720206446.exedescription pid process target process PID 1880 wrote to memory of 1476 1880 Doc_072720206446.exe Doc_072720206446.exe PID 1880 wrote to memory of 1476 1880 Doc_072720206446.exe Doc_072720206446.exe PID 1880 wrote to memory of 1476 1880 Doc_072720206446.exe Doc_072720206446.exe PID 1880 wrote to memory of 1476 1880 Doc_072720206446.exe Doc_072720206446.exe PID 1880 wrote to memory of 1476 1880 Doc_072720206446.exe Doc_072720206446.exe PID 1880 wrote to memory of 1476 1880 Doc_072720206446.exe Doc_072720206446.exe PID 1880 wrote to memory of 1476 1880 Doc_072720206446.exe Doc_072720206446.exe PID 1880 wrote to memory of 1476 1880 Doc_072720206446.exe Doc_072720206446.exe PID 1880 wrote to memory of 1476 1880 Doc_072720206446.exe Doc_072720206446.exe -
outlook_office_path 1 IoCs
Processes:
Doc_072720206446.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Doc_072720206446.exe -
outlook_win_path 1 IoCs
Processes:
Doc_072720206446.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Doc_072720206446.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Doc_072720206446.exe"C:\Users\Admin\AppData\Local\Temp\Doc_072720206446.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1880 -
C:\Users\Admin\AppData\Local\Temp\Doc_072720206446.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1476