Analysis
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max time kernel
146s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
29-05-2024 15:19
Static task
static1
Behavioral task
behavioral1
Sample
b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exe
Resource
win7-20240508-en
General
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Target
b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exe
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Size
3.3MB
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MD5
b9dd72244170c5672bb7ad4e6f4056b9
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SHA1
779bceced7259c82068c56befc8778bd0fcf5caf
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SHA256
b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00
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SHA512
312e39c2114ee8e4d0c5d769cf439f3fd068da62fb7fc3f4c41510c41ba7e49b62a07a19013f5d323e41b2fe960ae6bf3c3e20683e89f10da3b2614f9db47b22
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SSDEEP
24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNkI:QHPkVOBTKr
Malware Config
Signatures
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Processes:
resource yara_rule behavioral1/memory/2232-0-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit behavioral1/memory/2716-19-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2232-0-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat behavioral1/memory/2716-19-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat -
Drops file in Drivers directory 1 IoCs
Processes:
sainbox.exedescription ioc process File created C:\Windows\system32\drivers\QAssist.sys sainbox.exe -
Sets service image path in registry 2 TTPs 1 IoCs
Processes:
sainbox.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" sainbox.exe -
Deletes itself 1 IoCs
Processes:
cmd.exepid process 2344 cmd.exe -
Executes dropped EXE 2 IoCs
Processes:
sainbox.exesainbox.exepid process 2284 sainbox.exe 2716 sainbox.exe -
Loads dropped DLL 1 IoCs
Processes:
sainbox.exepid process 2284 sainbox.exe -
Drops file in System32 directory 2 IoCs
Processes:
b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exedescription ioc process File created C:\Windows\SysWOW64\sainbox.exe b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exe File opened for modification C:\Windows\SysWOW64\sainbox.exe b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exe -
Modifies data under HKEY_USERS 4 IoCs
Processes:
sainbox.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" sainbox.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings sainbox.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix sainbox.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" sainbox.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: LoadsDriver 1 IoCs
Processes:
sainbox.exepid process 2716 sainbox.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exesainbox.exedescription pid process Token: SeIncBasePriorityPrivilege 2232 b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exe Token: SeLoadDriverPrivilege 2716 sainbox.exe Token: 33 2716 sainbox.exe Token: SeIncBasePriorityPrivilege 2716 sainbox.exe Token: 33 2716 sainbox.exe Token: SeIncBasePriorityPrivilege 2716 sainbox.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exesainbox.execmd.exedescription pid process target process PID 2232 wrote to memory of 2344 2232 b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exe cmd.exe PID 2232 wrote to memory of 2344 2232 b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exe cmd.exe PID 2232 wrote to memory of 2344 2232 b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exe cmd.exe PID 2232 wrote to memory of 2344 2232 b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exe cmd.exe PID 2284 wrote to memory of 2716 2284 sainbox.exe sainbox.exe PID 2284 wrote to memory of 2716 2284 sainbox.exe sainbox.exe PID 2284 wrote to memory of 2716 2284 sainbox.exe sainbox.exe PID 2284 wrote to memory of 2716 2284 sainbox.exe sainbox.exe PID 2344 wrote to memory of 2712 2344 cmd.exe PING.EXE PID 2344 wrote to memory of 2712 2344 cmd.exe PING.EXE PID 2344 wrote to memory of 2712 2344 cmd.exe PING.EXE PID 2344 wrote to memory of 2712 2344 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exe"C:\Users\Admin\AppData\Local\Temp\b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\B9E92B~1.EXE > nul2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping -n 2 127.0.0.13⤵
- Runs ping.exe
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C:\Windows\SysWOW64\sainbox.exeC:\Windows\SysWOW64\sainbox.exe -auto1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\sainbox.exeC:\Windows\SysWOW64\sainbox.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\sainbox.exeFilesize
3.3MB
MD5b9dd72244170c5672bb7ad4e6f4056b9
SHA1779bceced7259c82068c56befc8778bd0fcf5caf
SHA256b9e92b710ca8ed56d9038c1f7a9ef534267cc4a089773c0129ba56b38e479b00
SHA512312e39c2114ee8e4d0c5d769cf439f3fd068da62fb7fc3f4c41510c41ba7e49b62a07a19013f5d323e41b2fe960ae6bf3c3e20683e89f10da3b2614f9db47b22
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memory/2232-0-0x0000000010000000-0x000000001019F000-memory.dmpFilesize
1.6MB
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memory/2716-19-0x0000000010000000-0x000000001019F000-memory.dmpFilesize
1.6MB