Analysis
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max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
18-12-2024 18:13
Static task
static1
Behavioral task
behavioral1
Sample
73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.exe
Resource
win7-20241010-en
General
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Target
73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.exe
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Size
1.4MB
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MD5
919dcfe259312235d47e158b8b0919b8
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SHA1
560d0ab3e11002de3ddc32939744f58ccfd7d9db
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SHA256
73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f
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SHA512
a2f04578e7547bbc6f6e9a81d3faea3c2f22a26158b225481f470ecd4b3d04440972ed04da9ac1c77c35063de079804fc54f24e27b35cd70a4da38266414f616
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SSDEEP
24576:n39WkOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:39qHPkVOBTK
Malware Config
Signatures
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resource yara_rule behavioral1/memory/1728-1-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 1 IoCs
resource yara_rule behavioral1/memory/1728-1-0x0000000010000000-0x000000001019F000-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 Phxph.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" Phxph.exe -
Deletes itself 1 IoCs
pid Process 2688 cmd.exe -
Executes dropped EXE 2 IoCs
pid Process 1068 Phxph.exe 2488 Phxph.exe -
Loads dropped DLL 1 IoCs
pid Process 1068 Phxph.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\Phxph.exe 73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.exe File opened for modification C:\Windows\SysWOW64\Phxph.exe 73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.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 73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Phxph.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Phxph.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 2688 cmd.exe 2628 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2628 PING.EXE -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 2488 Phxph.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1728 73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.exe Token: SeLoadDriverPrivilege 2488 Phxph.exe Token: 33 2488 Phxph.exe Token: SeIncBasePriorityPrivilege 2488 Phxph.exe Token: 33 2488 Phxph.exe Token: SeIncBasePriorityPrivilege 2488 Phxph.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1728 wrote to memory of 2688 1728 73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.exe 32 PID 1728 wrote to memory of 2688 1728 73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.exe 32 PID 1728 wrote to memory of 2688 1728 73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.exe 32 PID 1728 wrote to memory of 2688 1728 73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.exe 32 PID 1068 wrote to memory of 2488 1068 Phxph.exe 34 PID 1068 wrote to memory of 2488 1068 Phxph.exe 34 PID 1068 wrote to memory of 2488 1068 Phxph.exe 34 PID 1068 wrote to memory of 2488 1068 Phxph.exe 34 PID 2688 wrote to memory of 2628 2688 cmd.exe 35 PID 2688 wrote to memory of 2628 2688 cmd.exe 35 PID 2688 wrote to memory of 2628 2688 cmd.exe 35 PID 2688 wrote to memory of 2628 2688 cmd.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.exe"C:\Users\Admin\AppData\Local\Temp\73cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f.exe"1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1728 -
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\73CEBC~1.EXE > nul2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2688 -
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:2628
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C:\Windows\SysWOW64\Phxph.exeC:\Windows\SysWOW64\Phxph.exe -auto1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1068 -
C:\Windows\SysWOW64\Phxph.exeC:\Windows\SysWOW64\Phxph.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:2488
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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
1.4MB
MD5919dcfe259312235d47e158b8b0919b8
SHA1560d0ab3e11002de3ddc32939744f58ccfd7d9db
SHA25673cebc79286f37f65874b0f712960b3e88ba34bcb6546124f1a43a38981f1c0f
SHA512a2f04578e7547bbc6f6e9a81d3faea3c2f22a26158b225481f470ecd4b3d04440972ed04da9ac1c77c35063de079804fc54f24e27b35cd70a4da38266414f616