Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
08/10/2024, 01:01
Static task
static1
Behavioral task
behavioral1
Sample
02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe
Resource
win10v2004-20241007-en
General
- Target 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe
- Size 671KB
- Sample241008-bdqbca1cjm
- SHA256 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4
- MD5 8a679d776e0e4c74e36586a572e8b03b
- SHA1 55d9ecda56590489536e3f738c99510c523dd3e2
- SHA512 6301233cd1153bd899097024558bf69d7d4d9b6f84821a47f2b0118c158f51744bc0b2e5abf863a291cf0cd709f876450ff0a7f36a249f1fbac7009911b344c2
- SSDEEP 12288:hf0wi/kz4Tmeh/ajD+g86eH3DQHoNsHaKUt6kHYL6gei4NtSIgq:hwazjfYyoO636k4Ldei4F
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
QvGP%z%2
Extracted
-
vipkeylogger
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
QvGP%z%2
-
Email to
Signatures
- VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- 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 2852 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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe - Uses the VBS compiler for execution 1 TTPs
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.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.
flow ioc 14 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 760 set thread context of 4728 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 90 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 vbc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.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 4172 schtasks.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2852 powershell.exe 2852 powershell.exe 4728 vbc.exe 4728 vbc.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2852 powershell.exe Token: SeDebugPrivilege 4728 vbc.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 760 wrote to memory of 2852 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 86 PID 760 wrote to memory of 2852 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 86 PID 760 wrote to memory of 2852 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 86 PID 760 wrote to memory of 4172 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 88 PID 760 wrote to memory of 4172 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 88 PID 760 wrote to memory of 4172 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 88 PID 760 wrote to memory of 4728 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 90 PID 760 wrote to memory of 4728 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 90 PID 760 wrote to memory of 4728 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 90 PID 760 wrote to memory of 4728 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 90 PID 760 wrote to memory of 4728 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 90 PID 760 wrote to memory of 4728 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 90 PID 760 wrote to memory of 4728 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 90 PID 760 wrote to memory of 4728 760 02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe 90 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe"C:\Users\Admin\AppData\Local\Temp\02740b3119c557352e9a0ae274c606cfd1b8d5745300940e6a10905f1046fbe4.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:760 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jYzjbchiLfTdLb.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2852
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jYzjbchiLfTdLb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC3FC.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4172
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.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:4728
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4axhzgkp.krj.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmpC3FC.tmp
- Size 1KB
- SHA256 67877cafd4b3d1449ef3965edd557f816faa8eda10e131b1fdb4abbd0d2d18a7
- MD5 8a5be752d9afcdfaaefa802aa2a43ca2
- SHA1 4cabc15712d7c55f72212cd1f6981d99ac4d55f8
- SHA512 b751e4d8b5923b103c4f11e2cdb349bf8155439ac3f15a8436fcf6479bcdd73df7e55aa61abbdf2d840aa54cd73a8a5a18e47b0e1bfa2303fbfab787723e4801
- MD5 SHA1 SHA512