Analysis
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max time kernel
182s -
max time network
208s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
09-01-2025 10:39
Static task
static1
Behavioral task
behavioral1
Sample
Outstanding Payment.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Outstanding Payment.exe
Resource
win10v2004-20241007-en
General
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Target
Outstanding Payment.exe
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Size
853KB
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MD5
1a2ef5b0b6ab1ea56601fc640c595154
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SHA1
1825fdeb18bcb4ad7f593be9d95fdcd5455134a7
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SHA256
6ee0bd1b50c4c20ec2ef009293c5835b527099b2e8890b374241f63263fbfc12
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SHA512
483f8a4f6b5e82b48b4fa69226dd3aa07bf55b9a0ccf09bd1fea22e49b48979ddc853bafec4653286d079441fc230541b531d2c56a036b7b62b7a2fea0375fc7
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SSDEEP
12288:BOq4E6mfJiLl95WcbQkpClSLw2stXgMBz5Nof5Nvexz3Ry1RxU3iExQ6S/RJIzYR:QEkDXpClUuQSwNGvKzunW6SZ0+
Malware Config
Extracted
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
wVCMFq@2wVCMFq@2
Extracted
vipkeylogger
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
wVCMFq@2wVCMFq@2 - Email To:
[email protected]
Signatures
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VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
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Vipkeylogger family
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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 3524 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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation Outstanding Payment.exe -
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 3 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-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding Payment.exe Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding Payment.exe Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding Payment.exe -
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 26 reallyfreegeoip.org 20 checkip.dyndns.org 25 reallyfreegeoip.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2352 set thread context of 2236 2352 Outstanding Payment.exe 99 -
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 4 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 Outstanding Payment.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Outstanding Payment.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3104 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2352 Outstanding Payment.exe 3524 powershell.exe 2352 Outstanding Payment.exe 2236 Outstanding Payment.exe 3524 powershell.exe 2236 Outstanding Payment.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2352 Outstanding Payment.exe Token: SeDebugPrivilege 3524 powershell.exe Token: SeDebugPrivilege 2236 Outstanding Payment.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2352 wrote to memory of 3524 2352 Outstanding Payment.exe 95 PID 2352 wrote to memory of 3524 2352 Outstanding Payment.exe 95 PID 2352 wrote to memory of 3524 2352 Outstanding Payment.exe 95 PID 2352 wrote to memory of 3104 2352 Outstanding Payment.exe 97 PID 2352 wrote to memory of 3104 2352 Outstanding Payment.exe 97 PID 2352 wrote to memory of 3104 2352 Outstanding Payment.exe 97 PID 2352 wrote to memory of 2236 2352 Outstanding Payment.exe 99 PID 2352 wrote to memory of 2236 2352 Outstanding Payment.exe 99 PID 2352 wrote to memory of 2236 2352 Outstanding Payment.exe 99 PID 2352 wrote to memory of 2236 2352 Outstanding Payment.exe 99 PID 2352 wrote to memory of 2236 2352 Outstanding Payment.exe 99 PID 2352 wrote to memory of 2236 2352 Outstanding Payment.exe 99 PID 2352 wrote to memory of 2236 2352 Outstanding Payment.exe 99 PID 2352 wrote to memory of 2236 2352 Outstanding Payment.exe 99 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding Payment.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Outstanding Payment.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Outstanding Payment.exe"C:\Users\Admin\AppData\Local\Temp\Outstanding Payment.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2352 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZXoukchYat.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3524
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZXoukchYat" /XML "C:\Users\Admin\AppData\Local\Temp\tmp328.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3104
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C:\Users\Admin\AppData\Local\Temp\Outstanding Payment.exe"C:\Users\Admin\AppData\Local\Temp\Outstanding Payment.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2236
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5b9f3b2886a67b63cc08f68c8c0827800
SHA1fd593ff88500dfeb7c31de0d94583d9618e8e9ca
SHA2562afb7d1d4cec076d55eca9a003ee60e742a024a64f1f9a1ac26bfd19ab882c24
SHA512b5f7e0f39f252caaa8faaad41e68f6f615ef48909d45167bce09e7cb039a431cb560b639dfaae5ff7bd0abd5a8857bb73ba78a8e2858796f4eea5ae599551fa2