Analysis
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max time kernel
133s -
max time network
123s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
19-10-2021 15:51
Static task
static1
Behavioral task
behavioral1
Sample
88ef9621b800849bb2916f4d6654de32.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
88ef9621b800849bb2916f4d6654de32.exe
Resource
win10-en-20211014
General
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Target
88ef9621b800849bb2916f4d6654de32.exe
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Size
816KB
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MD5
88ef9621b800849bb2916f4d6654de32
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SHA1
5b488137ea06640c1895286ccf4994b65334ae8f
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SHA256
28fc5135ea1f14ea296184a3e518908ae77d88f100efa162bf30c046790197a3
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SHA512
50dc29078db22d56925ea89a06cc1c13419854457b5a3a38327cf58bee81f49cc9d19fdc9725e8051b6bb6ca10d070ae2123f759135e2be49c6260cc405f54b5
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.everywhere-gtt.com - Port:
587 - Username:
[email protected] - Password:
chidiebere1994
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/2812-128-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/2812-129-0x000000000043771E-mapping.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
InstallUtil.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts InstallUtil.exe -
Executes dropped EXE 1 IoCs
Processes:
InstallUtil.exepid process 2812 InstallUtil.exe -
Obfuscated with Agile.Net obfuscator 1 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
Processes:
resource yara_rule behavioral2/memory/1380-122-0x0000000006780000-0x00000000067A1000-memory.dmp agile_net -
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:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
88ef9621b800849bb2916f4d6654de32.exedescription pid process target process PID 1380 set thread context of 2812 1380 88ef9621b800849bb2916f4d6654de32.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
88ef9621b800849bb2916f4d6654de32.exeInstallUtil.exepid process 1380 88ef9621b800849bb2916f4d6654de32.exe 1380 88ef9621b800849bb2916f4d6654de32.exe 2812 InstallUtil.exe 2812 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
88ef9621b800849bb2916f4d6654de32.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 1380 88ef9621b800849bb2916f4d6654de32.exe Token: SeDebugPrivilege 2812 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
88ef9621b800849bb2916f4d6654de32.exedescription pid process target process PID 1380 wrote to memory of 2812 1380 88ef9621b800849bb2916f4d6654de32.exe InstallUtil.exe PID 1380 wrote to memory of 2812 1380 88ef9621b800849bb2916f4d6654de32.exe InstallUtil.exe PID 1380 wrote to memory of 2812 1380 88ef9621b800849bb2916f4d6654de32.exe InstallUtil.exe PID 1380 wrote to memory of 2812 1380 88ef9621b800849bb2916f4d6654de32.exe InstallUtil.exe PID 1380 wrote to memory of 2812 1380 88ef9621b800849bb2916f4d6654de32.exe InstallUtil.exe PID 1380 wrote to memory of 2812 1380 88ef9621b800849bb2916f4d6654de32.exe InstallUtil.exe PID 1380 wrote to memory of 2812 1380 88ef9621b800849bb2916f4d6654de32.exe InstallUtil.exe PID 1380 wrote to memory of 2812 1380 88ef9621b800849bb2916f4d6654de32.exe InstallUtil.exe -
outlook_office_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
outlook_win_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\88ef9621b800849bb2916f4d6654de32.exe"C:\Users\Admin\AppData\Local\Temp\88ef9621b800849bb2916f4d6654de32.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1380 -
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"2⤵
- Drops file in Drivers directory
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2812
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
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MD5
91c9ae9c9a17a9db5e08b120e668c74c
SHA150770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA256e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
SHA512ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e