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Analysis
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max time kernel
150s -
max time network
129s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
29/09/2024, 11:27
Static task
static1
Behavioral task
behavioral1
Sample
85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
Resource
win7-20240903-en
General
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Target
85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
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Size
4.8MB
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MD5
50aef8bd5459dc59e6582366a34e49ad
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SHA1
12099d7fb5cdea72634881850aeea9506211b9d5
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SHA256
85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7
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SHA512
699ce273bd425b280e2824e791e7598018f52cd96ee358a96f5d560eb4139936089651ff226ad6929d8a326a4ad8c7e6c3f3396a2b118111f4d697082f2a8698
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SSDEEP
49152:N09XJt4HIN2H2tFvduySZrlbXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8w:uZJt4HINy2LkZrlbXsPN5kiQaZ56
Malware Config
Signatures
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resource yara_rule behavioral2/memory/3396-6-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3396-10-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3396-7-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3476-15-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3476-17-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3476-16-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5044-26-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/3476-25-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5044-27-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5044-33-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit behavioral2/memory/5044-35-0x0000000010000000-0x00000000101B6000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 11 IoCs
resource yara_rule behavioral2/memory/3396-6-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3396-10-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3396-7-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3476-15-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3476-17-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3476-16-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5044-26-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/3476-25-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5044-27-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5044-33-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat behavioral2/memory/5044-35-0x0000000010000000-0x00000000101B6000-memory.dmp family_gh0strat -
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 4 IoCs
pid Process 3396 RVN.exe 3476 TXPlatforn.exe 5044 TXPlatforn.exe 2788 HD_85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\TXPlatforn.exe RVN.exe File created C:\Windows\SysWOW64\TXPlatforn.exe RVN.exe -
resource yara_rule behavioral2/memory/3396-6-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3396-4-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3396-10-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3396-7-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3476-13-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3476-15-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3476-17-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3476-16-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5044-26-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/3476-25-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5044-27-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5044-33-0x0000000010000000-0x00000000101B6000-memory.dmp upx behavioral2/memory/5044-35-0x0000000010000000-0x00000000101B6000-memory.dmp upx -
Drops file in Program Files directory 5 IoCs
description ioc Process File opened for modification C:\Program Files\Mozilla Firefox\firefox.exe 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe File created C:\Program Files (x86)\Google\Chrome\Application\chrome.exe 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe File opened for modification C:\Program Files\VideoLAN\VLC\vlc.exe 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 6 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 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe 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 HD_85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 708 PING.EXE 1984 cmd.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 708 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3916 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe 3916 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 5044 TXPlatforn.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 3396 RVN.exe Token: SeLoadDriverPrivilege 5044 TXPlatforn.exe Token: 33 5044 TXPlatforn.exe Token: SeIncBasePriorityPrivilege 5044 TXPlatforn.exe Token: 33 5044 TXPlatforn.exe Token: SeIncBasePriorityPrivilege 5044 TXPlatforn.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3916 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe 3916 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 3916 wrote to memory of 3396 3916 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe 82 PID 3916 wrote to memory of 3396 3916 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe 82 PID 3916 wrote to memory of 3396 3916 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe 82 PID 3476 wrote to memory of 5044 3476 TXPlatforn.exe 85 PID 3476 wrote to memory of 5044 3476 TXPlatforn.exe 85 PID 3476 wrote to memory of 5044 3476 TXPlatforn.exe 85 PID 3396 wrote to memory of 1984 3396 RVN.exe 84 PID 3396 wrote to memory of 1984 3396 RVN.exe 84 PID 3396 wrote to memory of 1984 3396 RVN.exe 84 PID 1984 wrote to memory of 708 1984 cmd.exe 88 PID 1984 wrote to memory of 708 1984 cmd.exe 88 PID 1984 wrote to memory of 708 1984 cmd.exe 88 PID 3916 wrote to memory of 2788 3916 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe 87 PID 3916 wrote to memory of 2788 3916 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe 87 PID 3916 wrote to memory of 2788 3916 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe"C:\Users\Admin\AppData\Local\Temp\85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3916 -
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:3396 -
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:1984 -
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:708
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C:\Users\Admin\AppData\Local\Temp\HD_85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exeC:\Users\Admin\AppData\Local\Temp\HD_85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2788
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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:3476 -
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:5044
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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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C:\Users\Admin\AppData\Local\Temp\HD_85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
Filesize3.1MB
MD5fb083acd60fe5c3156dc25442be815e3
SHA161df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8
SHA256f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794
SHA5127147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6
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Filesize
1.7MB
MD54844eb7ed6e266e9c4d0cfe1098540e7
SHA12f7f75bc4429f55a622251199a6c986c1f5bf72f
SHA25641457c1cb5e0358b3f5c86d63d24cf51cb54de63dbac549b97eb268b3ab12e59
SHA512970d7344321dfd135f398cfe901ff72a396febb1f38da9e3b08aee9bc65d88f10dcb9c202fe12e400faa33ffb77a01ffce861698b3e5d87b0a26a3c8e770264c
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Filesize
377KB
MD580ade1893dec9cab7f2e63538a464fcc
SHA1c06614da33a65eddb506db00a124a3fc3f5be02e
SHA25657a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd
SHA512fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4