Analysis
-
max time kernel
98s -
max time network
181s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
07-05-2023 05:33
Static task
static1
Behavioral task
behavioral1
Sample
a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe
Resource
win10v2004-20230220-en
General
-
Target
a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe
-
Size
692KB
-
MD5
21a98f442dc499874eee65be09e23256
-
SHA1
b220652614f3f561aa690ef5009c655bb31956d1
-
SHA256
a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e
-
SHA512
6dbd625a43d2da5bb9743a01e748c71c0654f9c71229ab1b5e4973a9b12f657f4d301f6a8cada418bad21009f0596b78cda4745fc896fd3bac02974c800401f0
-
SSDEEP
12288:ZzgmdXs3Q7Rxyb+xM3A4qte6gvV696oYd+eufXpaIJYHjDDU:5gksGcC2TxN69HY+fp/S7U
Malware Config
Extracted
Protocol: smtp- Host:
mail.tcci.org.sa - Port:
587 - Username:
[email protected] - Password:
Brown3044
Signatures
-
NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/2492-166-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2492-168-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2492-170-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/4916-171-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4916-173-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4916-177-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 6 IoCs
Processes:
resource yara_rule behavioral2/memory/2492-166-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2492-168-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2492-170-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/4916-171-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4916-173-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4916-177-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe -
Executes dropped EXE 2 IoCs
Processes:
Windows Update.exeWindows Update.exepid process 4760 Windows Update.exe 2764 Windows Update.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Uses the VBS compiler for execution 1 TTPs
-
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Windows Update.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" Windows Update.exe -
Drops desktop.ini file(s) 2 IoCs
Processes:
a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exedescription ioc process File created C:\Windows\assembly\Desktop.ini a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe File opened for modification C:\Windows\assembly\Desktop.ini a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 7 whatismyipaddress.com -
Suspicious use of SetThreadContext 4 IoCs
Processes:
a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exeWindows Update.exeWindows Update.exedescription pid process target process PID 2376 set thread context of 4348 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe PID 4760 set thread context of 2764 4760 Windows Update.exe Windows Update.exe PID 2764 set thread context of 2492 2764 Windows Update.exe vbc.exe PID 2764 set thread context of 4916 2764 Windows Update.exe vbc.exe -
Drops file in Windows directory 3 IoCs
Processes:
a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exedescription ioc process File opened for modification C:\Windows\assembly a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe File created C:\Windows\assembly\Desktop.ini a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe File opened for modification C:\Windows\assembly\Desktop.ini a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exeWindows Update.exeWindows Update.exepid process 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe 4760 Windows Update.exe 4760 Windows Update.exe 4760 Windows Update.exe 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe 4760 Windows Update.exe 4760 Windows Update.exe 4760 Windows Update.exe 4760 Windows Update.exe 4760 Windows Update.exe 4760 Windows Update.exe 4760 Windows Update.exe 4760 Windows Update.exe 4760 Windows Update.exe 4760 Windows Update.exe 4760 Windows Update.exe 4760 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe 2764 Windows Update.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exeWindows Update.exeWindows Update.exedescription pid process Token: SeDebugPrivilege 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe Token: SeDebugPrivilege 4760 Windows Update.exe Token: SeDebugPrivilege 2764 Windows Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Windows Update.exepid process 2764 Windows Update.exe -
Suspicious use of WriteProcessMemory 37 IoCs
Processes:
a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exea9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exeWindows Update.exeWindows Update.exedescription pid process target process PID 2376 wrote to memory of 4348 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe PID 2376 wrote to memory of 4348 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe PID 2376 wrote to memory of 4348 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe PID 2376 wrote to memory of 4348 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe PID 2376 wrote to memory of 4348 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe PID 2376 wrote to memory of 4348 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe PID 2376 wrote to memory of 4348 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe PID 2376 wrote to memory of 4348 2376 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe PID 4348 wrote to memory of 4760 4348 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe Windows Update.exe PID 4348 wrote to memory of 4760 4348 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe Windows Update.exe PID 4348 wrote to memory of 4760 4348 a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe Windows Update.exe PID 4760 wrote to memory of 2764 4760 Windows Update.exe Windows Update.exe PID 4760 wrote to memory of 2764 4760 Windows Update.exe Windows Update.exe PID 4760 wrote to memory of 2764 4760 Windows Update.exe Windows Update.exe PID 4760 wrote to memory of 2764 4760 Windows Update.exe Windows Update.exe PID 4760 wrote to memory of 2764 4760 Windows Update.exe Windows Update.exe PID 4760 wrote to memory of 2764 4760 Windows Update.exe Windows Update.exe PID 4760 wrote to memory of 2764 4760 Windows Update.exe Windows Update.exe PID 4760 wrote to memory of 2764 4760 Windows Update.exe Windows Update.exe PID 2764 wrote to memory of 2492 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 2492 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 2492 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 2492 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 2492 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 2492 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 2492 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 2492 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 2492 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 4916 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 4916 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 4916 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 4916 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 4916 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 4916 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 4916 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 4916 2764 Windows Update.exe vbc.exe PID 2764 wrote to memory of 4916 2764 Windows Update.exe vbc.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe"C:\Users\Admin\AppData\Local\Temp\a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe"1⤵
- Drops desktop.ini file(s)
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2376 -
C:\Users\Admin\AppData\Local\Temp\a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe"C:\Users\Admin\AppData\Local\Temp\a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e.exe"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4348 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4760 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"5⤵
- Accesses Microsoft Outlook accounts
PID:2492
-
-
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"5⤵PID:4916
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
102B
MD5a48d183869f02d762a76ed3dc87ad2e2
SHA119645475dd5cf06792b2c5476b8e01f7f0033a43
SHA256d974bde76064760a372e6a2df2cd9bd23f80150ae0ceaa7ac9e6641e8ca0302a
SHA512f2f0a0fdd3a761a1d53a52e3f92302699eae405ced9c31d4e07a6934815f00a64c01f489ffbc80112e858b9fef6b9b9998134399af328b25856868331a4232a4
-
Filesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
-
Filesize
89KB
MD584c42d0f2c1ae761bef884638bc1eacd
SHA14353881e7f4e9c7610f4e0489183b55bb58bb574
SHA256331487446653875bf1e628b797a5283e40056654f7ff328eafbe39b0304480d3
SHA51243c307a38faa3a4b311597034cf75035a4434a1024d2a54e867e6a94b53b677898d71a858438d119000e872a7a6e92c5b31d277a8c207a94375ed4fd3c7beb87
-
Filesize
692KB
MD521a98f442dc499874eee65be09e23256
SHA1b220652614f3f561aa690ef5009c655bb31956d1
SHA256a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e
SHA5126dbd625a43d2da5bb9743a01e748c71c0654f9c71229ab1b5e4973a9b12f657f4d301f6a8cada418bad21009f0596b78cda4745fc896fd3bac02974c800401f0
-
Filesize
692KB
MD521a98f442dc499874eee65be09e23256
SHA1b220652614f3f561aa690ef5009c655bb31956d1
SHA256a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e
SHA5126dbd625a43d2da5bb9743a01e748c71c0654f9c71229ab1b5e4973a9b12f657f4d301f6a8cada418bad21009f0596b78cda4745fc896fd3bac02974c800401f0
-
Filesize
692KB
MD521a98f442dc499874eee65be09e23256
SHA1b220652614f3f561aa690ef5009c655bb31956d1
SHA256a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e
SHA5126dbd625a43d2da5bb9743a01e748c71c0654f9c71229ab1b5e4973a9b12f657f4d301f6a8cada418bad21009f0596b78cda4745fc896fd3bac02974c800401f0
-
Filesize
692KB
MD521a98f442dc499874eee65be09e23256
SHA1b220652614f3f561aa690ef5009c655bb31956d1
SHA256a9b51a1c8409470cf8204ec646aabdd91cf7aa424dfaeaf5e58447e65065925e
SHA5126dbd625a43d2da5bb9743a01e748c71c0654f9c71229ab1b5e4973a9b12f657f4d301f6a8cada418bad21009f0596b78cda4745fc896fd3bac02974c800401f0