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Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21/09/2024, 19:50
Static task
static1
Behavioral task
behavioral1
Sample
NO7367027738832789257820.rtf
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
NO7367027738832789257820.rtf
Resource
win10v2004-20240802-en
General
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Target
NO7367027738832789257820.rtf
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Size
642KB
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MD5
b16595c7c02434cb4e95e46eaa864262
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SHA1
d9ed513e1cc6a3538c12fb404ff576c32028a3bd
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SHA256
3e1ba9d9fae253f1cebc7ddaafbc893f10cd8fd9b644e4b18f4e4f06f3cb62b0
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SHA512
9b362dab6d79482201b789eb12335f3a9cc0e30663e63cd40ff169084ec4284cf957914f40b5e15f75215e19194dc84c3a24462bc39383e79dc626dcb11a1e9e
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SSDEEP
6144:ewAYwAYwAg+bU29khgINRyJT8cai2+QurA0nI:n9
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
aowapnzgtwgqowgt - 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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Blocklisted process makes network request 1 IoCs
flow pid Process 3 2968 EQNEDT32.EXE -
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 592 powershell.exe -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 2196 bwoidsplug10496.exe 112 bwoidsplug10496.exe -
Loads dropped DLL 1 IoCs
pid Process 2968 EQNEDT32.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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Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2196 set thread context of 112 2196 bwoidsplug10496.exe 36 -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
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 5 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 WINWORD.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language EQNEDT32.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bwoidsplug10496.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bwoidsplug10496.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Office loads VBA resources, possible macro or embedded object present
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Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
pid Process 2968 EQNEDT32.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1852 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 112 bwoidsplug10496.exe 112 bwoidsplug10496.exe 592 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 112 bwoidsplug10496.exe Token: SeDebugPrivilege 592 powershell.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1852 WINWORD.EXE 1852 WINWORD.EXE -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2968 wrote to memory of 2196 2968 EQNEDT32.EXE 29 PID 2968 wrote to memory of 2196 2968 EQNEDT32.EXE 29 PID 2968 wrote to memory of 2196 2968 EQNEDT32.EXE 29 PID 2968 wrote to memory of 2196 2968 EQNEDT32.EXE 29 PID 1852 wrote to memory of 2940 1852 WINWORD.EXE 33 PID 1852 wrote to memory of 2940 1852 WINWORD.EXE 33 PID 1852 wrote to memory of 2940 1852 WINWORD.EXE 33 PID 1852 wrote to memory of 2940 1852 WINWORD.EXE 33 PID 2196 wrote to memory of 592 2196 bwoidsplug10496.exe 34 PID 2196 wrote to memory of 592 2196 bwoidsplug10496.exe 34 PID 2196 wrote to memory of 592 2196 bwoidsplug10496.exe 34 PID 2196 wrote to memory of 592 2196 bwoidsplug10496.exe 34 PID 2196 wrote to memory of 112 2196 bwoidsplug10496.exe 36 PID 2196 wrote to memory of 112 2196 bwoidsplug10496.exe 36 PID 2196 wrote to memory of 112 2196 bwoidsplug10496.exe 36 PID 2196 wrote to memory of 112 2196 bwoidsplug10496.exe 36 PID 2196 wrote to memory of 112 2196 bwoidsplug10496.exe 36 PID 2196 wrote to memory of 112 2196 bwoidsplug10496.exe 36 PID 2196 wrote to memory of 112 2196 bwoidsplug10496.exe 36 PID 2196 wrote to memory of 112 2196 bwoidsplug10496.exe 36 PID 2196 wrote to memory of 112 2196 bwoidsplug10496.exe 36
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\NO7367027738832789257820.rtf"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1852 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:2940
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C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2968 -
C:\Users\Admin\AppData\Roaming\bwoidsplug10496.exe"C:\Users\Admin\AppData\Roaming\bwoidsplug10496.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bwoidsplug10496.exe"3⤵
- Command and Scripting Interpreter: PowerShell
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:592
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C:\Users\Admin\AppData\Roaming\bwoidsplug10496.exe"C:\Users\Admin\AppData\Roaming\bwoidsplug10496.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:112
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Exploitation for Client Execution
1Credential 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
20KB
MD5154d9cbf78c8af61688ce6d4cc8354dc
SHA119af745ff72e460d1f6d1099e4f1f95a10f3c543
SHA256abc76022cd8df1d31df8c1fc1c193c074ef1101b3557a6225fe668f22f9e26b2
SHA512d765226c334ddc17a1cca2507ea1bd0a5bea1be4d41b38fe1b3cd301c6234a4d3e1c0dc7addfde87e73eb7ef10cec19296defdc28cb4a473cb892c560628b119
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Filesize
630KB
MD51046de21cd8e9ff519ce5cb089edd5f5
SHA114e56d2cdbdfaaa7c49e3b3fed62df2d0f114d83
SHA256dbda8c6ed6803fd8eeb547a60ee600c101315b478fa055d4a1d0ac438fc45527
SHA512ba3c69da22314de39a20b458a6c49041b280f5eb283a5225f3b40ee9381ff7fcb037c274a9fc0988cad7432b50c2fc4520221e6fdf5aa0bcc095188d14181d56