Analysis
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max time kernel
116s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
20-09-2024 18:50
Static task
static1
Behavioral task
behavioral1
Sample
5.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
5.exe
Resource
win10v2004-20240802-en
General
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Target
5.exe
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Size
635KB
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MD5
1fb2088c9d4054cb8881b8065f8c7fcc
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SHA1
4adeea429e6ec3fd6c3ce62e184c61b4a1be12b1
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SHA256
c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622
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SHA512
f7935457e959d4ba4684483753e2ca02820fac4fc0c5d3f08a43108d85230dc62be4ad0dd437a276f4f10005ca585896e179a0e3e7ab6ea098b28d7076dc7bd7
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SSDEEP
12288:T/qRqjqYB2HqyF1ip9IfxWledlMq6mapp/VhwXyhl43E5aIsKtM:TqpUcrF+IZWljq1mp/Vh2yhl5lM
Malware Config
Extracted
Protocol: smtp- Host:
mail.bonnyriggdentalsurgery.com.au - Port:
587 - Username:
[email protected] - Password:
eL)rV@QBKA#m
Extracted
agenttesla
Protocol: smtp- Host:
mail.bonnyriggdentalsurgery.com.au - Port:
587 - Username:
[email protected] - Password:
eL)rV@QBKA#m - 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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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 4600 powershell.exe -
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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation 5.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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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 20 api.ipify.org 21 api.ipify.org 22 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3136 set thread context of 2288 3136 5.exe 91 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2288 5.exe 2288 5.exe 4600 powershell.exe 4600 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2288 5.exe Token: SeDebugPrivilege 4600 powershell.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3136 wrote to memory of 4600 3136 5.exe 89 PID 3136 wrote to memory of 4600 3136 5.exe 89 PID 3136 wrote to memory of 4600 3136 5.exe 89 PID 3136 wrote to memory of 2288 3136 5.exe 91 PID 3136 wrote to memory of 2288 3136 5.exe 91 PID 3136 wrote to memory of 2288 3136 5.exe 91 PID 3136 wrote to memory of 2288 3136 5.exe 91 PID 3136 wrote to memory of 2288 3136 5.exe 91 PID 3136 wrote to memory of 2288 3136 5.exe 91 PID 3136 wrote to memory of 2288 3136 5.exe 91 PID 3136 wrote to memory of 2288 3136 5.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\5.exe"C:\Users\Admin\AppData\Local\Temp\5.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3136 -
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\5.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4600
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C:\Users\Admin\AppData\Local\Temp\5.exe"C:\Users\Admin\AppData\Local\Temp\5.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2288
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82