Analysis
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max time kernel
99s -
max time network
121s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-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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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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation f26ce3fc95a5cc436d4e15338a7ded6b.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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f26ce3fc95a5cc436d4e15338a7ded6b.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f26ce3fc95a5cc436d4e15338a7ded6b.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\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-1-5-21-1675742406-747946869-1029867430-1000\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 1152 set thread context of 2708 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 94 -
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 3512 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 4756 powershell.exe 4756 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe Token: SeDebugPrivilege 4756 powershell.exe Token: SeDebugPrivilege 2708 f26ce3fc95a5cc436d4e15338a7ded6b.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1152 wrote to memory of 4756 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 90 PID 1152 wrote to memory of 4756 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 90 PID 1152 wrote to memory of 4756 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 90 PID 1152 wrote to memory of 3512 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 92 PID 1152 wrote to memory of 3512 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 92 PID 1152 wrote to memory of 3512 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 92 PID 1152 wrote to memory of 2708 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 94 PID 1152 wrote to memory of 2708 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 94 PID 1152 wrote to memory of 2708 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 94 PID 1152 wrote to memory of 2708 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 94 PID 1152 wrote to memory of 2708 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 94 PID 1152 wrote to memory of 2708 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 94 PID 1152 wrote to memory of 2708 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 94 PID 1152 wrote to memory of 2708 1152 f26ce3fc95a5cc436d4e15338a7ded6b.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f26ce3fc95a5cc436d4e15338a7ded6b.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1152 -
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:4756
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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\tmp3E61.tmp"2⤵
- Creates scheduled task(s)
PID:3512
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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:2708
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f26ce3fc95a5cc436d4e15338a7ded6b.exe.log
Filesize1KB
MD533d62ef2c354f839a8b2b987e6ee41e7
SHA1d76f64ac411a61f3f232f7f9f7b179bd34042226
SHA256f6a84062cb11ccf802324692c2c4c48543377cf717d98efd5de695ed6d0a97d9
SHA512d68a426b2f4646bb45e2267d60680166a8effb9a461e5a07756ba13a3bdf36b27e6e9777d945d03a62362e6976e92214c53ffc7c4f03ec28d3fcfc9a442c5e3c
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5a4065694e7521599168f846671845955
SHA1de86f0674d2ec3e6dcc6e2e929ef8eb4f0e27887
SHA2566dace91a607ea6536ee0de285e8e1310d1f2cbf2e66cd55d5e7f025bd2767eba
SHA5121d6f4b884f2913a4322b0644de35bfccbe023cc45f1667d866fcc48a474eb5da100b8b2b70f0b96044158f427349f2932ffddaf1f6bc0b3ee56e62ea873d0bf4