Analysis
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max time kernel
77s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
02-11-2022 11:33
Static task
static1
Behavioral task
behavioral1
Sample
win.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
win.exe
Resource
win10v2004-20220812-en
General
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Target
win.exe
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Size
532KB
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MD5
34d50a3607d973f9e1704de3d248a8bf
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SHA1
12b59cbffb2bd12b0a6037320fc2f4ba1e4d3791
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SHA256
baa1c79cd08201c260e7286514341d77c2786e163a06a8daa0452b13604ee2f3
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SHA512
5d62c37d7dc7a15f28cfe4144501c7d5742c145b43b5e120fe424169afea9b0de3955042561358c2a9243878c12ce6680a0e382145b56508874c90ecfbd85bd6
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SSDEEP
12288:c40gouHH1J+0Ki5EJ+IL2AGR4g73ldQAHGR4yjHH/hRNanCQE1y0:cju1i0EEwK73ldQA0n8ne1
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot5295814595:AAH651y8OCDrAzKzJOhBeka_joDzflnMpb4/
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation win.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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 win.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 win.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 win.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tOVaC = "C:\\Users\\Admin\\AppData\\Roaming\\tOVaC\\tOVaC.exe" win.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4616 set thread context of 2732 4616 win.exe 93 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4956 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 4616 win.exe 4616 win.exe 2068 powershell.exe 2068 powershell.exe 2732 win.exe 2732 win.exe 2732 win.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4616 win.exe Token: SeDebugPrivilege 2068 powershell.exe Token: SeDebugPrivilege 2732 win.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2732 win.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4616 wrote to memory of 2068 4616 win.exe 89 PID 4616 wrote to memory of 2068 4616 win.exe 89 PID 4616 wrote to memory of 2068 4616 win.exe 89 PID 4616 wrote to memory of 4956 4616 win.exe 91 PID 4616 wrote to memory of 4956 4616 win.exe 91 PID 4616 wrote to memory of 4956 4616 win.exe 91 PID 4616 wrote to memory of 2732 4616 win.exe 93 PID 4616 wrote to memory of 2732 4616 win.exe 93 PID 4616 wrote to memory of 2732 4616 win.exe 93 PID 4616 wrote to memory of 2732 4616 win.exe 93 PID 4616 wrote to memory of 2732 4616 win.exe 93 PID 4616 wrote to memory of 2732 4616 win.exe 93 PID 4616 wrote to memory of 2732 4616 win.exe 93 PID 4616 wrote to memory of 2732 4616 win.exe 93 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 win.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 win.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\win.exe"C:\Users\Admin\AppData\Local\Temp\win.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4616 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mYBObuIct.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2068
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mYBObuIct" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2616.tmp"2⤵
- Creates scheduled task(s)
PID:4956
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C:\Users\Admin\AppData\Local\Temp\win.exe"C:\Users\Admin\AppData\Local\Temp\win.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2732
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5223f4a739ad59f1e1316c3deb7669f1b
SHA19ded1101965e95e57653925ad947cfb91d3930df
SHA256d00f92bea84f7d78f23ff963bf334e8c77a7fad01a0d4cd89ac849981dfbffd7
SHA5128c1cf2c6bda136ae23faea87cba8114ad65ea71320a929604a022eaf3a7dfe9958480088843903946474e2c0f47569b5270b74951a78450e5a46b8d547cb6e3f
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Filesize
1KB
MD54ca00c38ad891ca7a09fafe83caef6d9
SHA15295803519f3323e71a7e083e2cc8134f0a3d777
SHA2566895110c4dd869fc387a666e94684af9c0bb01ca064fb7d8a61d9e347bbc5697
SHA512138ee352bf024bb0500f9b1d7c3d61fadc1c3162fdeb9ea5287467eb2c879300ad7b596830edc905b364726d094fa7374b42f0ee5d8ca14cfbc38c8505e73c24