Analysis
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max time kernel
132s -
max time network
147s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
18-10-2021 21:30
Static task
static1
Behavioral task
behavioral1
Sample
SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe
Resource
win10-en-20210920
General
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Target
SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe
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Size
790KB
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MD5
9fd8919e62792e6d93995b5f7abda850
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SHA1
c143d0ece3715bc4c484e201f4b9c5e7630e7fd2
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SHA256
20e9c3ad420ffd76094590adced58f056d38e5d6afe3ee9e21e7b29ff5a80da7
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SHA512
35bcd80094c49e5ef9399a52277b4a592cd4bd659a50ebabfbf62775d5681f1028eb29a357f4e19ab93a528f14e0632eebc8a6f2ccf9234bc2f7d76a80dd963e
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.xxltrucck.com - Port:
587 - Username:
[email protected] - Password:
vFguU*i0
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/2968-127-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/2968-128-0x000000000043773E-mapping.dmp family_agenttesla behavioral2/memory/2968-135-0x00000000059A0000-0x0000000005E9E000-memory.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 2968 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/2072-120-0x00000000068E0000-0x0000000006901000-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-1-5-21-2481030822-2828258191-1606198294-1000\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:
SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exedescription pid process target process PID 2072 set thread context of 2968 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exeInstallUtil.exepid process 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe 2968 InstallUtil.exe 2968 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exeInstallUtil.exedescription pid process Token: SeDebugPrivilege 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe Token: SeDebugPrivilege 2968 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exedescription pid process target process PID 2072 wrote to memory of 2968 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe InstallUtil.exe PID 2072 wrote to memory of 2968 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe InstallUtil.exe PID 2072 wrote to memory of 2968 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe InstallUtil.exe PID 2072 wrote to memory of 2968 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe InstallUtil.exe PID 2072 wrote to memory of 2968 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe InstallUtil.exe PID 2072 wrote to memory of 2968 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe InstallUtil.exe PID 2072 wrote to memory of 2968 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe InstallUtil.exe PID 2072 wrote to memory of 2968 2072 SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.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\SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Cerbu.117505.10723.10196.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2072 -
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:2968
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