Analysis
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max time kernel
125s -
max time network
51s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
03-12-2023 16:35
Static task
static1
Behavioral task
behavioral1
Sample
Confirmacaodeconta.exe
Resource
win7-20231201-en
Behavioral task
behavioral2
Sample
Confirmacaodeconta.exe
Resource
win10v2004-20231130-en
General
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Target
Confirmacaodeconta.exe
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Size
841KB
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MD5
c0faf71f9d3d14e79bec6769860b564f
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SHA1
2f11711bf5b4aa115d160e022b14cd1e91570737
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SHA256
692469e7237af7cf1c4d4b9d7abcbd5064732f6318ed91c21bd11e8f8adce3c4
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SHA512
63b1c4c1767fd23f18fb06f86bdd885861dfb63359cc890fe0b9aabbab67189400d676d325bddbdbb48010ca8650fdb83fe81656c07eb65dd8f0c55e2ca38764
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SSDEEP
24576:IyT/7fbYvQed+5d5o57m9KuDa/MFEbma:IyTjfbYvk5/o57mk0wma
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.hsbv1.nl - Port:
587 - Username:
[email protected] - Password:
xdDPyH(8 - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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:
Confirmacaodeconta.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-423100829-2271632622-1028104103-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmacaodeconta.exe Key opened \REGISTRY\USER\S-1-5-21-423100829-2271632622-1028104103-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmacaodeconta.exe Key opened \REGISTRY\USER\S-1-5-21-423100829-2271632622-1028104103-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmacaodeconta.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 14 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Confirmacaodeconta.exedescription pid process target process PID 212 set thread context of 1688 212 Confirmacaodeconta.exe Confirmacaodeconta.exe -
Suspicious behavior: EnumeratesProcesses 11 IoCs
Processes:
Confirmacaodeconta.exeConfirmacaodeconta.exepid process 212 Confirmacaodeconta.exe 212 Confirmacaodeconta.exe 212 Confirmacaodeconta.exe 212 Confirmacaodeconta.exe 212 Confirmacaodeconta.exe 212 Confirmacaodeconta.exe 212 Confirmacaodeconta.exe 212 Confirmacaodeconta.exe 212 Confirmacaodeconta.exe 1688 Confirmacaodeconta.exe 1688 Confirmacaodeconta.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Confirmacaodeconta.exeConfirmacaodeconta.exedescription pid process Token: SeDebugPrivilege 212 Confirmacaodeconta.exe Token: SeDebugPrivilege 1688 Confirmacaodeconta.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Confirmacaodeconta.exedescription pid process target process PID 212 wrote to memory of 1688 212 Confirmacaodeconta.exe Confirmacaodeconta.exe PID 212 wrote to memory of 1688 212 Confirmacaodeconta.exe Confirmacaodeconta.exe PID 212 wrote to memory of 1688 212 Confirmacaodeconta.exe Confirmacaodeconta.exe PID 212 wrote to memory of 1688 212 Confirmacaodeconta.exe Confirmacaodeconta.exe PID 212 wrote to memory of 1688 212 Confirmacaodeconta.exe Confirmacaodeconta.exe PID 212 wrote to memory of 1688 212 Confirmacaodeconta.exe Confirmacaodeconta.exe PID 212 wrote to memory of 1688 212 Confirmacaodeconta.exe Confirmacaodeconta.exe PID 212 wrote to memory of 1688 212 Confirmacaodeconta.exe Confirmacaodeconta.exe -
outlook_office_path 1 IoCs
Processes:
Confirmacaodeconta.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-423100829-2271632622-1028104103-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmacaodeconta.exe -
outlook_win_path 1 IoCs
Processes:
Confirmacaodeconta.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-423100829-2271632622-1028104103-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmacaodeconta.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Confirmacaodeconta.exe"C:\Users\Admin\AppData\Local\Temp\Confirmacaodeconta.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:212 -
C:\Users\Admin\AppData\Local\Temp\Confirmacaodeconta.exe"C:\Users\Admin\AppData\Local\Temp\Confirmacaodeconta.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1688
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3