Analysis
- max time kernel
117s - max time network
134s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
04/10/2024, 02:01
Static task
static1
Behavioral task
behavioral1
Sample
c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe
Resource
win10v2004-20240802-en
General
- Target c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe
- Size 864KB
- Sample241004-cflavasdjc
- SHA256 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c
- MD5 1a2030277b88a72feac4f57f6514494a
- SHA1 29858e377f52ba70fad5d3f24c30e2264d96ea96
- SHA512 15fb1909628f42b05fb23c3d1a492ffd7a1897c63ef1b9d9380c1026b5a02c661cd5ab94d6d56d5d1f942c9172c34de11717bf21650981b7cff788437981ca63
- SSDEEP 12288:zTvI+u/WO2QaanbotSUN3o7ifGY4+wZy2jifuNHXSRcEgPKxIYzsT:3vIFSYgp32872lWWtSBgmIYzs
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.obaambalaj.com.tr
-
Port
587
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Username
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Password
Beyza2022
Extracted
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vipkeylogger
-
Protocol
smtp
-
Host
mail.obaambalaj.com.tr
-
Port
587
-
Username
-
Password
Beyza2022
-
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 3632 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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.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.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe Key opened \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe Key opened \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.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 19 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5036 set thread context of 4048 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 89 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 4048 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 3632 powershell.exe 3632 powershell.exe 4048 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe Token: SeDebugPrivilege 4048 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe Token: SeDebugPrivilege 3632 powershell.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 5036 wrote to memory of 3632 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 86 PID 5036 wrote to memory of 3632 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 86 PID 5036 wrote to memory of 3632 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 86 PID 5036 wrote to memory of 5024 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 88 PID 5036 wrote to memory of 5024 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 88 PID 5036 wrote to memory of 5024 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 88 PID 5036 wrote to memory of 4048 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 89 PID 5036 wrote to memory of 4048 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 89 PID 5036 wrote to memory of 4048 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 89 PID 5036 wrote to memory of 4048 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 89 PID 5036 wrote to memory of 4048 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 89 PID 5036 wrote to memory of 4048 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 89 PID 5036 wrote to memory of 4048 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 89 PID 5036 wrote to memory of 4048 5036 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe 89 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe"C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.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:5036 -
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\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3632
-
-
C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe"C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe"2⤵PID:5024
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C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.exe"C:\Users\Admin\AppData\Local\Temp\c387b91dd56a4b66da4582e26ebc0c5a473e37251fb44650fc62d6d4749d5c8c.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:4048
-
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4jlqcvlg.bqo.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512