Analysis
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max time kernel
129s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-20230621-en -
resource tags
arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system -
submitted
05/07/2023, 07:43
Static task
static1
Behavioral task
behavioral1
Sample
b4df3d7f0826501829e1a03991e1fe81.exe
Resource
win7-20230703-en
Behavioral task
behavioral2
Sample
b4df3d7f0826501829e1a03991e1fe81.exe
Resource
win10v2004-20230621-en
General
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Target
b4df3d7f0826501829e1a03991e1fe81.exe
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Size
605KB
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MD5
b4df3d7f0826501829e1a03991e1fe81
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SHA1
87e32c06302f04fcc647de19f004812bf51c886c
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SHA256
c165fbefe04f523b3045dca492b7e72bf82cfc75fceed6e63cfcd180ec6fe20e
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SHA512
af53be29a64f237537d0e99577861c3e97d8f01d3826c2dc0ca48d7c410bd28ff6cde21d8d95e84fc7f1d864b6e7923759e15a4bad71597ce9b0aa6c239b826a
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SSDEEP
12288:GOrOoafZF7BHEmOyyhYT3BAM233Ta4RZq4:jaNHRHaG3GTnu4RZq4
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
cp7nl.hyperhost.ua - Port:
587 - Username:
[email protected] - Password:
7213575aceACE@#$ - 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-1-5-21-2890635272-812199704-3564780063-1000\Control Panel\International\Geo\Nation b4df3d7f0826501829e1a03991e1fe81.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-1-5-21-2890635272-812199704-3564780063-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b4df3d7f0826501829e1a03991e1fe81.exe Key opened \REGISTRY\USER\S-1-5-21-2890635272-812199704-3564780063-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b4df3d7f0826501829e1a03991e1fe81.exe Key opened \REGISTRY\USER\S-1-5-21-2890635272-812199704-3564780063-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b4df3d7f0826501829e1a03991e1fe81.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1412 set thread context of 4452 1412 b4df3d7f0826501829e1a03991e1fe81.exe 102 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2564 powershell.exe 2564 powershell.exe 4452 b4df3d7f0826501829e1a03991e1fe81.exe 4452 b4df3d7f0826501829e1a03991e1fe81.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4452 b4df3d7f0826501829e1a03991e1fe81.exe Token: SeDebugPrivilege 2564 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4452 b4df3d7f0826501829e1a03991e1fe81.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1412 wrote to memory of 2564 1412 b4df3d7f0826501829e1a03991e1fe81.exe 100 PID 1412 wrote to memory of 2564 1412 b4df3d7f0826501829e1a03991e1fe81.exe 100 PID 1412 wrote to memory of 2564 1412 b4df3d7f0826501829e1a03991e1fe81.exe 100 PID 1412 wrote to memory of 4452 1412 b4df3d7f0826501829e1a03991e1fe81.exe 102 PID 1412 wrote to memory of 4452 1412 b4df3d7f0826501829e1a03991e1fe81.exe 102 PID 1412 wrote to memory of 4452 1412 b4df3d7f0826501829e1a03991e1fe81.exe 102 PID 1412 wrote to memory of 4452 1412 b4df3d7f0826501829e1a03991e1fe81.exe 102 PID 1412 wrote to memory of 4452 1412 b4df3d7f0826501829e1a03991e1fe81.exe 102 PID 1412 wrote to memory of 4452 1412 b4df3d7f0826501829e1a03991e1fe81.exe 102 PID 1412 wrote to memory of 4452 1412 b4df3d7f0826501829e1a03991e1fe81.exe 102 PID 1412 wrote to memory of 4452 1412 b4df3d7f0826501829e1a03991e1fe81.exe 102 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2890635272-812199704-3564780063-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b4df3d7f0826501829e1a03991e1fe81.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2890635272-812199704-3564780063-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b4df3d7f0826501829e1a03991e1fe81.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b4df3d7f0826501829e1a03991e1fe81.exe"C:\Users\Admin\AppData\Local\Temp\b4df3d7f0826501829e1a03991e1fe81.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1412 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\b4df3d7f0826501829e1a03991e1fe81.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2564
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C:\Users\Admin\AppData\Local\Temp\b4df3d7f0826501829e1a03991e1fe81.exe"C:\Users\Admin\AppData\Local\Temp\b4df3d7f0826501829e1a03991e1fe81.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4452
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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\b4df3d7f0826501829e1a03991e1fe81.exe.log
Filesize1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82