Analysis
- max time kernel
150s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
04/08/2026, 12:18
General
- Target velogs.exe
- Size 733KB
- Sample260804-pgw5ysah93
- SHA256 c0654ca707fd45d9563f46dbd51fc03b75f5a05ec0ffc26816bcedcd13520b31
Malware Config
Extracted
-
phantom_stealer
-
v3.5.0
-
1YA6UHTISPAQ669J8KKQ
-
anti_analysis
0
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cb_enables_ssl
0
-
debug
0
-
keylogger
1
-
start_delay
0
-
startup
1
Signatures
- Family: PhantomStealer
Phantom Stealer is a stealer written in C#, forked from the Stealerium family.
- Detects PhantomStealer written in C# 3 IoCs
- Executes dropped EXE 1 IoCs
- 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
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Costura .NET executable packer 2 IoCs
Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\velogs.exe"C:\Users\Admin\AppData\Local\Temp\velogs.exe"1⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --no-sandbox --allow-no-sandbox-job --disable-gpu --mute-audio --disable-audio --user-data-dir="C:\Users\Admin\AppData\Local\Temp\smqd0534.viv"2⤵
- Enumerates system info in registry
- Suspicious use of WriteProcessMemory
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler --user-data-dir=C:\Users\Admin\AppData\Local\Temp\smqd0534.viv /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Temp\smqd0534.viv\Crashpad --metrics-dir=C:\Users\Admin\AppData\Local\Temp\smqd0534.viv --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=140.0.7339.81 --initial-client-data=0x138,0x13c,0x140,0x114,0x144,0x7ffdc8a2c728,0x7ffdc8a2c734,0x7ffdc8a2c7403⤵
-
-
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C:\Users\Admin\AppData\Roaming\velogs.exeC:\Users\Admin\AppData\Roaming\velogs.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"1⤵
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
settings.dat
Preferences
Variations
velogs.exe
memory/1668-18-0x0000027C2D2D0000-0x0000027C2D38E000-memory.dmp
memory/2956-14-0x000001F57F840000-0x000001F57F85E000-memory.dmp
memory/2956-3-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-7-0x000001F51A470000-0x000001F51A522000-memory.dmp
memory/2956-5-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-33-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-10-0x000001F57FAB0000-0x000001F57FC72000-memory.dmp
memory/2956-11-0x000001F57F8E0000-0x000001F57F956000-memory.dmp
memory/2956-12-0x000001F57F870000-0x000001F57F8C0000-memory.dmp
memory/2956-13-0x000001F51AA90000-0x000001F51AFB8000-memory.dmp
memory/2956-0-0x000001F57F360000-0x000001F57F41E000-memory.dmp
memory/2956-4-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-6-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-2-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-1-0x00007FFDCD86F000-0x00007FFDCD870000-memory.dmp
memory/2956-23-0x000001F57F990000-0x000001F57F9B2000-memory.dmp
memory/2956-24-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-26-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-27-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-29-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-28-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-30-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/2956-32-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/5068-9-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp
memory/5068-35-0x00007FFDCD6E0000-0x00007FFDCE084000-memory.dmp