Analysis
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max time kernel
115s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
23-09-2024 01:31
Static task
static1
Behavioral task
behavioral1
Sample
c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe
Resource
win10v2004-20240802-en
General
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Target
c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.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 2080 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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.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 2512 set thread context of 4504 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.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 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4504 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 4504 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 2080 powershell.exe 2080 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4504 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe Token: SeDebugPrivilege 2080 powershell.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2512 wrote to memory of 2080 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 89 PID 2512 wrote to memory of 2080 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 89 PID 2512 wrote to memory of 2080 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 89 PID 2512 wrote to memory of 4504 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 91 PID 2512 wrote to memory of 4504 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 91 PID 2512 wrote to memory of 4504 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 91 PID 2512 wrote to memory of 4504 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 91 PID 2512 wrote to memory of 4504 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 91 PID 2512 wrote to memory of 4504 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 91 PID 2512 wrote to memory of 4504 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 91 PID 2512 wrote to memory of 4504 2512 c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe"C:\Users\Admin\AppData\Local\Temp\c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2512 -
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\c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2080
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C:\Users\Admin\AppData\Local\Temp\c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe"C:\Users\Admin\AppData\Local\Temp\c39033fb9aa3af73b672cd1784036e84a3bb20d7cb8d2dd612208bdd5b96d622.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4504
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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
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82