Analysis
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max time kernel
102s -
max time network
123s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
19-10-2021 10:07
Static task
static1
Behavioral task
behavioral1
Sample
48b71ff758da6e68f6309b702e261999.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
48b71ff758da6e68f6309b702e261999.exe
Resource
win10-en-20210920
General
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Target
48b71ff758da6e68f6309b702e261999.exe
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Size
1.2MB
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MD5
48b71ff758da6e68f6309b702e261999
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SHA1
0b6a4a53dec603f20a3873037a56a6995554ded5
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SHA256
1ea3243ad2a3b383ac4ad841794eb7b802b882b9a39f985114edfa3453e4b19d
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SHA512
d00a011d0f716894d92c89f71fc4249fde8d62b114b07f64baba06938b71f97232eaf4d4ee2efaf27d268c1af24fdf5f2e182f0df3b15de2630ff16c444d7148
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.xenonaslikno.gr - Port:
587 - Username:
[email protected] - Password:
Fox#UgJVGN#0X
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/3228-125-0x000000000043766E-mapping.dmp family_agenttesla behavioral2/memory/3228-128-0x0000000000760000-0x000000000079C000-memory.dmp family_agenttesla behavioral2/memory/3228-132-0x0000000004BC0000-0x00000000050BE000-memory.dmp family_agenttesla -
Executes dropped EXE 1 IoCs
Processes:
InstallUtil.exepid process 3228 InstallUtil.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:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
48b71ff758da6e68f6309b702e261999.exedescription pid process target process PID 1752 set thread context of 3228 1752 48b71ff758da6e68f6309b702e261999.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
48b71ff758da6e68f6309b702e261999.exeInstallUtil.exepid process 1752 48b71ff758da6e68f6309b702e261999.exe 3228 InstallUtil.exe 3228 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
48b71ff758da6e68f6309b702e261999.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 1752 48b71ff758da6e68f6309b702e261999.exe Token: SeDebugPrivilege 3228 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
48b71ff758da6e68f6309b702e261999.exedescription pid process target process PID 1752 wrote to memory of 3228 1752 48b71ff758da6e68f6309b702e261999.exe InstallUtil.exe PID 1752 wrote to memory of 3228 1752 48b71ff758da6e68f6309b702e261999.exe InstallUtil.exe PID 1752 wrote to memory of 3228 1752 48b71ff758da6e68f6309b702e261999.exe InstallUtil.exe PID 1752 wrote to memory of 3228 1752 48b71ff758da6e68f6309b702e261999.exe InstallUtil.exe PID 1752 wrote to memory of 3228 1752 48b71ff758da6e68f6309b702e261999.exe InstallUtil.exe PID 1752 wrote to memory of 3228 1752 48b71ff758da6e68f6309b702e261999.exe InstallUtil.exe PID 1752 wrote to memory of 3228 1752 48b71ff758da6e68f6309b702e261999.exe InstallUtil.exe PID 1752 wrote to memory of 3228 1752 48b71ff758da6e68f6309b702e261999.exe InstallUtil.exe -
outlook_office_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\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-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\48b71ff758da6e68f6309b702e261999.exe"C:\Users\Admin\AppData\Local\Temp\48b71ff758da6e68f6309b702e261999.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1752 -
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\\InstallUtil.exe"2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3228
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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