Analysis
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max time kernel
74s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 11:01
Static task
static1
Behavioral task
behavioral1
Sample
Authorized Docsx-1011279_pdf.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
Authorized Docsx-1011279_pdf.exe
Resource
win10v2004-20220414-en
General
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Target
Authorized Docsx-1011279_pdf.exe
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Size
958KB
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MD5
2859536d947d374208b75ab68c3a89ec
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SHA1
bc79eaecfe58b2f0c0e65b96ac8df676bba914a3
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SHA256
5d8edb52dabb7850b75a9bf3f899756425401e26b221fba7117c9627ae844590
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SHA512
ae128ad0d5c95e23bf7fb2542d87a4b1248ada569f8e84a77bf4fe5d1f3cd0cd873c9a831a52dc2da2c4f65d6eb7c983f6accb5934779f79e2179d1ad795e85a
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.samco-sg.com - Port:
587 - Username:
[email protected] - Password:
@NNiiSl4
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 behavioral1/memory/1972-57-0x00000000002D0000-0x000000000031C000-memory.dmp family_agenttesla behavioral1/memory/1972-58-0x00000000002D0000-0x000000000031C000-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:
Authorized Docsx-1011279_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Authorized Docsx-1011279_pdf.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Authorized Docsx-1011279_pdf.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Authorized Docsx-1011279_pdf.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Authorized Docsx-1011279_pdf.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\newApp = "C:\\Users\\Admin\\AppData\\Roaming\\newApp\\newApp.exe" Authorized Docsx-1011279_pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Authorized Docsx-1011279_pdf.exedescription pid process target process PID 1664 set thread context of 1972 1664 Authorized Docsx-1011279_pdf.exe Authorized Docsx-1011279_pdf.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
Authorized Docsx-1011279_pdf.exeAuthorized Docsx-1011279_pdf.exepid process 1664 Authorized Docsx-1011279_pdf.exe 1972 Authorized Docsx-1011279_pdf.exe 1972 Authorized Docsx-1011279_pdf.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
Authorized Docsx-1011279_pdf.exepid process 1664 Authorized Docsx-1011279_pdf.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
Authorized Docsx-1011279_pdf.exepid process 1972 Authorized Docsx-1011279_pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Authorized Docsx-1011279_pdf.exedescription pid process Token: SeDebugPrivilege 1972 Authorized Docsx-1011279_pdf.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
Authorized Docsx-1011279_pdf.exedescription pid process target process PID 1664 wrote to memory of 1972 1664 Authorized Docsx-1011279_pdf.exe Authorized Docsx-1011279_pdf.exe PID 1664 wrote to memory of 1972 1664 Authorized Docsx-1011279_pdf.exe Authorized Docsx-1011279_pdf.exe PID 1664 wrote to memory of 1972 1664 Authorized Docsx-1011279_pdf.exe Authorized Docsx-1011279_pdf.exe PID 1664 wrote to memory of 1972 1664 Authorized Docsx-1011279_pdf.exe Authorized Docsx-1011279_pdf.exe -
outlook_office_path 1 IoCs
Processes:
Authorized Docsx-1011279_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Authorized Docsx-1011279_pdf.exe -
outlook_win_path 1 IoCs
Processes:
Authorized Docsx-1011279_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Authorized Docsx-1011279_pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Authorized Docsx-1011279_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Authorized Docsx-1011279_pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1664 -
C:\Users\Admin\AppData\Local\Temp\Authorized Docsx-1011279_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Authorized Docsx-1011279_pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1972