Analysis
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max time kernel
150s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
28/11/2024, 14:02
Static task
static1
Behavioral task
behavioral1
Sample
b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe
Resource
win7-20240903-en
General
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Target
b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe
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Size
756KB
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MD5
d399445b035b99c4de849127250658d0
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SHA1
41c15a5f765b7c9df4cdc89c42e105ee71284bf4
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SHA256
b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f
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SHA512
72574483a3984ba7a6fcabfe8331b54b9a5f500cc625bf098507101afef8631611ca9c1eb2baf577209ed926b87e2ed6d2403603fc0f7e55b5819a734ed6c23f
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SSDEEP
12288:Hi2cAro2HQVWAHkFSq2hAWJYlMUtrxlyuJVRe8yT6XvEHG+sMOr5L0G:Hi2Tro2H2HESq2eWJ6MQjySjyyvEHPsz
Malware Config
Signatures
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resource yara_rule behavioral2/memory/2380-7-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/2380-11-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/2380-8-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/2736-16-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/2736-18-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/2736-25-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3744-24-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/2736-17-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3744-26-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3744-29-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3744-31-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 11 IoCs
resource yara_rule behavioral2/memory/2380-7-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/2380-11-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/2380-8-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/2736-16-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/2736-18-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/2736-25-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3744-24-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/2736-17-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3744-26-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3744-29-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3744-31-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat -
Gh0strat family
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Purplefox family
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Drops file in Drivers directory 1 IoCs
description ioc Process File created C:\Windows\system32\drivers\QAssist.sys TXPlatforn.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" TXPlatforn.exe -
Executes dropped EXE 3 IoCs
pid Process 2380 RVN.exe 2736 TXPlatforn.exe 3744 TXPlatforn.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\TXPlatforn.exe RVN.exe File opened for modification C:\Windows\SysWOW64\TXPlatforn.exe RVN.exe -
resource yara_rule behavioral2/memory/2380-5-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2380-7-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2380-11-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2380-8-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2736-16-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2736-18-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2736-25-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3744-24-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2736-17-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/2736-14-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3744-26-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3744-29-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3744-31-0x0000000010000000-0x00000000101B6000-memory.dmp upx -
System Location Discovery: System Language Discovery 1 TTPs 5 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 RVN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language TXPlatforn.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1548 PING.EXE 4936 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1548 PING.EXE -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 3744 TXPlatforn.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2380 RVN.exe Token: SeLoadDriverPrivilege 3744 TXPlatforn.exe Token: 33 3744 TXPlatforn.exe Token: SeIncBasePriorityPrivilege 3744 TXPlatforn.exe Token: 33 3744 TXPlatforn.exe Token: SeIncBasePriorityPrivilege 3744 TXPlatforn.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4944 b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4944 wrote to memory of 2380 4944 b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe 83 PID 4944 wrote to memory of 2380 4944 b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe 83 PID 4944 wrote to memory of 2380 4944 b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe 83 PID 2380 wrote to memory of 4936 2380 RVN.exe 85 PID 2380 wrote to memory of 4936 2380 RVN.exe 85 PID 2380 wrote to memory of 4936 2380 RVN.exe 85 PID 2736 wrote to memory of 3744 2736 TXPlatforn.exe 86 PID 2736 wrote to memory of 3744 2736 TXPlatforn.exe 86 PID 2736 wrote to memory of 3744 2736 TXPlatforn.exe 86 PID 4936 wrote to memory of 1548 4936 cmd.exe 88 PID 4936 wrote to memory of 1548 4936 cmd.exe 88 PID 4936 wrote to memory of 1548 4936 cmd.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe"C:\Users\Admin\AppData\Local\Temp\b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4944 -
C:\Users\Admin\AppData\Local\Temp\RVN.exeC:\Users\Admin\AppData\Local\Temp\\RVN.exe2⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2380 -
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\RVN.exe > nul3⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:4936 -
C:\Windows\SysWOW64\PING.EXEping -n 2 127.0.0.14⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1548
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C:\Windows\SysWOW64\TXPlatforn.exeC:\Windows\SysWOW64\TXPlatforn.exe -auto1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736 -
C:\Windows\SysWOW64\TXPlatforn.exeC:\Windows\SysWOW64\TXPlatforn.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:3744
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
756KB
MD5d399445b035b99c4de849127250658d0
SHA141c15a5f765b7c9df4cdc89c42e105ee71284bf4
SHA256b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f
SHA51272574483a3984ba7a6fcabfe8331b54b9a5f500cc625bf098507101afef8631611ca9c1eb2baf577209ed926b87e2ed6d2403603fc0f7e55b5819a734ed6c23f
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Filesize
377KB
MD580ade1893dec9cab7f2e63538a464fcc
SHA1c06614da33a65eddb506db00a124a3fc3f5be02e
SHA25657a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd
SHA512fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4