Analysis
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max time kernel
107s -
max time network
33s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
06-12-2022 06:53
Static task
static1
Behavioral task
behavioral1
Sample
#4WIa5.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
#4WIa5.exe
Resource
win10v2004-20221111-en
General
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Target
#4WIa5.exe
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Size
1.1MB
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MD5
8c9cf2d7436c524449d3559a379a9b7d
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SHA1
519ff74cb97229a1b1fd7c5515b165cf30472e28
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SHA256
1e71e56913f6531c96445bc90b51d49e9a69574236d97b3c36ce99db4f9a9ee7
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SHA512
bc6ba9da565af95854e77e1ed10019f29c50f35ba438b0dfa4fc073f9cb1f5e80f6522cce11e8cf25c368e6ffed3173a531d1683d8d87278782ff2f8b8c351ef
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SSDEEP
24576:9g7yqlK/1FuZ7zNrQ5DQRQFs0TZ7yw+mD:u7yLDkVrQ5ysTB9JD
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot1591373451:AAH6Q2mvjdA9146Wl0khv2-kuh-iTps2zjw/
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:
#4WIa5.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 #4WIa5.exe Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 #4WIa5.exe Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 #4WIa5.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
#4WIa5.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\yGbzOMp = "C:\\Users\\Admin\\AppData\\Roaming\\yGbzOMp\\yGbzOMp.exe" #4WIa5.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
#4WIa5.exedescription pid process target process PID 1612 set thread context of 768 1612 #4WIa5.exe #4WIa5.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
#4WIa5.exepid process 768 #4WIa5.exe 768 #4WIa5.exe 768 #4WIa5.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
#4WIa5.exedescription pid process Token: SeDebugPrivilege 768 #4WIa5.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
#4WIa5.exedescription pid process target process PID 1612 wrote to memory of 768 1612 #4WIa5.exe #4WIa5.exe PID 1612 wrote to memory of 768 1612 #4WIa5.exe #4WIa5.exe PID 1612 wrote to memory of 768 1612 #4WIa5.exe #4WIa5.exe PID 1612 wrote to memory of 768 1612 #4WIa5.exe #4WIa5.exe PID 1612 wrote to memory of 768 1612 #4WIa5.exe #4WIa5.exe PID 1612 wrote to memory of 768 1612 #4WIa5.exe #4WIa5.exe PID 1612 wrote to memory of 768 1612 #4WIa5.exe #4WIa5.exe PID 1612 wrote to memory of 768 1612 #4WIa5.exe #4WIa5.exe PID 1612 wrote to memory of 768 1612 #4WIa5.exe #4WIa5.exe -
outlook_office_path 1 IoCs
Processes:
#4WIa5.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 #4WIa5.exe -
outlook_win_path 1 IoCs
Processes:
#4WIa5.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 #4WIa5.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\#4WIa5.exe"C:\Users\Admin\AppData\Local\Temp\#4WIa5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\#4WIa5.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/768-64-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/768-59-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/768-60-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/768-62-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/768-63-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/768-65-0x0000000000437BFE-mapping.dmp
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memory/768-67-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/768-69-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/1612-55-0x00000000764C1000-0x00000000764C3000-memory.dmpFilesize
8KB
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memory/1612-56-0x00000000003F0000-0x0000000000402000-memory.dmpFilesize
72KB
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memory/1612-57-0x00000000057D0000-0x0000000005892000-memory.dmpFilesize
776KB
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memory/1612-58-0x00000000058D0000-0x000000000594A000-memory.dmpFilesize
488KB
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memory/1612-54-0x0000000000960000-0x0000000000A7E000-memory.dmpFilesize
1.1MB