Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
13-09-2024 13:53
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20240903-en
windows7-x64
20 signatures
150 seconds
General
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Target
file.exe
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Size
1.5MB
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MD5
2978ce3b334332c2bf8e6c45652c599c
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SHA1
d297e5a04848168db55cb7aa43ec9f68e88e3ff5
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SHA256
f17af5296ff826f4199381574dccb3dcb8a5deeb811e40929f95c722ab70aeb7
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SHA512
57f28c9287b185183f190f3864edd84de8e6f8a28ab86468eff195a717eb57bc1c89c2b144f3a60b5c8880983ef85e3387bb0e1805d3295bfbcc323a996a5b20
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SSDEEP
24576:eYVLN+uGOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:BTT3HPkVOBTK
Malware Config
Signatures
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resource yara_rule behavioral2/memory/4804-0-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit behavioral2/memory/2720-10-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit behavioral2/memory/3100-17-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 3 IoCs
resource yara_rule behavioral2/memory/4804-0-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat behavioral2/memory/2720-10-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat behavioral2/memory/3100-17-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat -
Drops file in Drivers directory 1 IoCs
description ioc Process File created C:\Windows\system32\drivers\QAssist.sys Jbrja.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" Jbrja.exe -
Executes dropped EXE 2 IoCs
pid Process 2720 Jbrja.exe 3100 Jbrja.exe -
Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\M: Jbrja.exe File opened (read-only) \??\P: Jbrja.exe File opened (read-only) \??\Q: Jbrja.exe File opened (read-only) \??\U: Jbrja.exe File opened (read-only) \??\V: Jbrja.exe File opened (read-only) \??\I: Jbrja.exe File opened (read-only) \??\J: Jbrja.exe File opened (read-only) \??\K: Jbrja.exe File opened (read-only) \??\W: Jbrja.exe File opened (read-only) \??\Z: Jbrja.exe File opened (read-only) \??\B: Jbrja.exe File opened (read-only) \??\X: Jbrja.exe File opened (read-only) \??\Y: Jbrja.exe File opened (read-only) \??\R: Jbrja.exe File opened (read-only) \??\S: Jbrja.exe File opened (read-only) \??\H: Jbrja.exe File opened (read-only) \??\L: Jbrja.exe File opened (read-only) \??\O: Jbrja.exe File opened (read-only) \??\T: Jbrja.exe File opened (read-only) \??\E: Jbrja.exe File opened (read-only) \??\G: Jbrja.exe File opened (read-only) \??\N: Jbrja.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\Jbrja.exe file.exe File opened for modification C:\Windows\SysWOW64\Jbrja.exe file.exe -
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 file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Jbrja.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Jbrja.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2816 cmd.exe 3488 PING.EXE -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Jbrja.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz Jbrja.exe -
Modifies data under HKEY_USERS 5 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft Jbrja.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie Jbrja.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7" Jbrja.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum Jbrja.exe Key created \REGISTRY\USER\.DEFAULT\Software Jbrja.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3488 PING.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe 3100 Jbrja.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 3100 Jbrja.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4804 file.exe Token: SeLoadDriverPrivilege 3100 Jbrja.exe Token: 33 3100 Jbrja.exe Token: SeIncBasePriorityPrivilege 3100 Jbrja.exe Token: 33 3100 Jbrja.exe Token: SeIncBasePriorityPrivilege 3100 Jbrja.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4804 wrote to memory of 2816 4804 file.exe 88 PID 4804 wrote to memory of 2816 4804 file.exe 88 PID 4804 wrote to memory of 2816 4804 file.exe 88 PID 2720 wrote to memory of 3100 2720 Jbrja.exe 90 PID 2720 wrote to memory of 3100 2720 Jbrja.exe 90 PID 2720 wrote to memory of 3100 2720 Jbrja.exe 90 PID 2816 wrote to memory of 3488 2816 cmd.exe 91 PID 2816 wrote to memory of 3488 2816 cmd.exe 91 PID 2816 wrote to memory of 3488 2816 cmd.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4804 -
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\file.exe > nul2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2816 -
C:\Windows\SysWOW64\PING.EXEping -n 2 127.0.0.13⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3488
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C:\Windows\SysWOW64\Jbrja.exeC:\Windows\SysWOW64\Jbrja.exe -auto1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Windows\SysWOW64\Jbrja.exeC:\Windows\SysWOW64\Jbrja.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:3100
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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
1.5MB
MD52978ce3b334332c2bf8e6c45652c599c
SHA1d297e5a04848168db55cb7aa43ec9f68e88e3ff5
SHA256f17af5296ff826f4199381574dccb3dcb8a5deeb811e40929f95c722ab70aeb7
SHA51257f28c9287b185183f190f3864edd84de8e6f8a28ab86468eff195a717eb57bc1c89c2b144f3a60b5c8880983ef85e3387bb0e1805d3295bfbcc323a996a5b20