Analysis
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max time kernel
65s -
max time network
30s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
19/04/2023, 16:50
Static task
static1
Behavioral task
behavioral1
Sample
f26ce3fc95a5cc436d4e15338a7ded6b.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
f26ce3fc95a5cc436d4e15338a7ded6b.exe
Resource
win10v2004-20230220-en
General
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Target
f26ce3fc95a5cc436d4e15338a7ded6b.exe
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Size
612KB
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MD5
f26ce3fc95a5cc436d4e15338a7ded6b
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SHA1
5c246a98d7880d7136618db76e48fe5b8b85c760
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SHA256
b6d0953157868a8702d0503d4e5303d208b6b8653d09bd76ec03b7c6c8f2f273
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SHA512
3ec7fefbb2bea8079cfea9239e8f38c8d0c492cff3f1de1860c287a87a21f8fed883243e7f1201e884694702a69dab1de703c2ab64333ea03b3fb9bf89b51bde
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SSDEEP
12288:g3qUZCG5G0MQBmQLwgqj6jaiBdE8dsJHJPguR8H0W:7YCECTjj6NAgsJpPgrUW
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
kV$bSqJ1 daniel - 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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f26ce3fc95a5cc436d4e15338a7ded6b.exe Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f26ce3fc95a5cc436d4e15338a7ded6b.exe Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f26ce3fc95a5cc436d4e15338a7ded6b.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Windows\CurrentVersion\Run\gcWPrHZ = "C:\\Users\\Admin\\AppData\\Roaming\\gcWPrHZ\\gcWPrHZ.exe" f26ce3fc95a5cc436d4e15338a7ded6b.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1108 set thread context of 1896 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 31 -
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 584 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 572 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe Token: SeDebugPrivilege 1896 f26ce3fc95a5cc436d4e15338a7ded6b.exe Token: SeDebugPrivilege 572 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1108 wrote to memory of 572 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 27 PID 1108 wrote to memory of 572 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 27 PID 1108 wrote to memory of 572 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 27 PID 1108 wrote to memory of 572 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 27 PID 1108 wrote to memory of 584 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 28 PID 1108 wrote to memory of 584 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 28 PID 1108 wrote to memory of 584 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 28 PID 1108 wrote to memory of 584 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 28 PID 1108 wrote to memory of 1896 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 31 PID 1108 wrote to memory of 1896 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 31 PID 1108 wrote to memory of 1896 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 31 PID 1108 wrote to memory of 1896 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 31 PID 1108 wrote to memory of 1896 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 31 PID 1108 wrote to memory of 1896 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 31 PID 1108 wrote to memory of 1896 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 31 PID 1108 wrote to memory of 1896 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 31 PID 1108 wrote to memory of 1896 1108 f26ce3fc95a5cc436d4e15338a7ded6b.exe 31 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f26ce3fc95a5cc436d4e15338a7ded6b.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f26ce3fc95a5cc436d4e15338a7ded6b.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f26ce3fc95a5cc436d4e15338a7ded6b.exe"C:\Users\Admin\AppData\Local\Temp\f26ce3fc95a5cc436d4e15338a7ded6b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1108 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UImAzFkCIGy.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:572
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UImAzFkCIGy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDA1A.tmp"2⤵
- Creates scheduled task(s)
PID:584
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C:\Users\Admin\AppData\Local\Temp\f26ce3fc95a5cc436d4e15338a7ded6b.exe"C:\Users\Admin\AppData\Local\Temp\f26ce3fc95a5cc436d4e15338a7ded6b.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1896
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5429fc453c537579232c25721ab2e539d
SHA1ec1fbf8a26fa0b532b2d146cd42d3a7bd6b78c2a
SHA2561ceae325e7bb7fb9e8b5bbfe8bf8afe52de368b9ac361a53d5742fec307495ab
SHA5126c50b9037574ea17be19c7506d3d4fe70db12c45db5eda827e61569cad90c7ae6aec6e20ae6963071d674925feefabc4df849768ada411bdc5b279d4b62c5f18