Analysis
- max time kernel
1798s - max time network
1803s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
02/04/2024, 12:17
General
- Target Cpzldy.exe
- Size 24KB
- Sample240402-pf91eshf3v
- SHA256 b5ef62838f5833daa0dc09657aa57bc1cf157a44a1b943147eaaea4150afe5af
Malware Config
Signatures
- PureLog Stealer
PureLog Stealer is an infostealer written in C#.
- PureLog Stealer payload 1 IoCs
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Drops file in Program Files directory 2 IoCs
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 21 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Cpzldy.exe"C:\Users\Admin\AppData\Local\Temp\Cpzldy.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe3⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe3⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\unregmp2.exe"C:\Windows\SysWOW64\unregmp2.exe"4⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"5⤵
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C:\Program Files (x86)\J_pmpp\qlvhs4jsjt.exe"C:\Program Files (x86)\J_pmpp\qlvhs4jsjt.exe"2⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
qlvhs4jsjt.exe
memory/1056-6-0x00000000072C0000-0x0000000007340000-memory.dmp
memory/1056-2-0x0000000005BA0000-0x0000000006144000-memory.dmp
memory/1056-3-0x00000000056B0000-0x00000000056C0000-memory.dmp
memory/1056-4-0x00000000063F0000-0x0000000006482000-memory.dmp
memory/1056-5-0x0000000006510000-0x000000000651A000-memory.dmp
memory/1056-1-0x0000000075000000-0x00000000757B0000-memory.dmp
memory/1056-7-0x00000000073B0000-0x0000000007416000-memory.dmp
memory/1056-8-0x0000000007540000-0x00000000075A6000-memory.dmp
memory/1056-9-0x0000000005AD0000-0x0000000005B1C000-memory.dmp
memory/1056-10-0x0000000075000000-0x00000000757B0000-memory.dmp
memory/1056-11-0x00000000056B0000-0x00000000056C0000-memory.dmp
memory/1056-0-0x0000000000CF0000-0x0000000000CFC000-memory.dmp
memory/1056-14-0x0000000075000000-0x00000000757B0000-memory.dmp
memory/1512-36-0x00000000026C0000-0x0000000002764000-memory.dmp
memory/1512-26-0x00000000026C0000-0x0000000002764000-memory.dmp
memory/1512-20-0x00000000008B0000-0x00000000008EA000-memory.dmp
memory/1512-21-0x00000000008B0000-0x00000000008EA000-memory.dmp
memory/1512-29-0x00000000008B0000-0x00000000008EA000-memory.dmp
memory/1512-24-0x0000000002870000-0x0000000002BBA000-memory.dmp
memory/1512-25-0x00000000008B0000-0x00000000008EA000-memory.dmp
memory/3192-46-0x0000000005070000-0x000000000559C000-memory.dmp
memory/3192-44-0x0000000000330000-0x0000000000340000-memory.dmp
memory/3192-45-0x0000000073960000-0x0000000074110000-memory.dmp
memory/3192-48-0x0000000073960000-0x0000000074110000-memory.dmp
memory/3428-28-0x0000000003080000-0x000000000315D000-memory.dmp
memory/3428-27-0x0000000003080000-0x000000000315D000-memory.dmp
memory/3428-37-0x0000000003080000-0x000000000315D000-memory.dmp
memory/5052-23-0x0000000000E10000-0x0000000000E35000-memory.dmp
memory/5052-22-0x0000000000400000-0x000000000043D000-memory.dmp
memory/5052-19-0x0000000000E10000-0x0000000000E35000-memory.dmp
memory/5052-18-0x0000000000400000-0x000000000043D000-memory.dmp
memory/5052-17-0x0000000000400000-0x000000000043D000-memory.dmp
memory/5052-16-0x0000000000400000-0x000000000043D000-memory.dmp
memory/5052-15-0x0000000000E60000-0x00000000011AA000-memory.dmp
memory/5052-12-0x0000000000400000-0x000000000043D000-memory.dmp