Analysis
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max time kernel
94s -
max time network
96s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
07-09-2024 20:29
Static task
static1
Behavioral task
behavioral1
Sample
170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe
Resource
win7-20240903-en
Errors
General
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Target
170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe
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Size
4.0MB
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MD5
9795f2e7a7c23cd7eb536ad28d923958
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SHA1
79156a866315b5cd3203898795ce0d54e8e65d29
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SHA256
170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68
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SHA512
14b8987585bd2ef08a2d86b5c4a49ad811392740a4b95b061fea42931d34a483f59f94cf10cd0cd9d0af9e3a7a5d219d40fdfddad5875087ce853a92539dc5eb
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SSDEEP
98304:g0CaH1REzZi1U+EKo2DqbigoxEspdJipIddobqWQ:NIBQubYxFU8d5W
Malware Config
Signatures
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resource yara_rule behavioral2/memory/4120-77-0x0000000010000000-0x00000000101B0000-memory.dmp purplefox_rootkit behavioral2/memory/448-85-0x0000000010000000-0x00000000101B0000-memory.dmp purplefox_rootkit behavioral2/memory/4120-93-0x0000000000400000-0x0000000000591000-memory.dmp purplefox_rootkit behavioral2/memory/448-97-0x0000000000400000-0x0000000000591000-memory.dmp purplefox_rootkit behavioral2/memory/4940-125-0x0000000000400000-0x0000000000591000-memory.dmp purplefox_rootkit behavioral2/memory/6000-199-0x0000000000400000-0x0000000000591000-memory.dmp purplefox_rootkit -
Drops file in Drivers directory 1 IoCs
description ioc Process File created C:\Windows\system32\drivers\QAssist.sys conhost.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" conhost.exe -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe.lnk 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe -
Executes dropped EXE 4 IoCs
pid Process 4120 conhost.exe 448 conhost.exe 4940 conhost.exe 6000 conhost.exe -
Loads dropped DLL 1 IoCs
pid Process 632 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe -
resource yara_rule behavioral2/memory/632-4-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-5-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-35-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-41-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-50-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-49-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-46-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-37-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-33-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-29-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-25-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-13-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-11-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-9-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-7-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-44-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-31-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-27-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-23-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-21-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-19-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-17-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-15-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/632-6-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/files/0x0008000000023456-75.dat upx behavioral2/memory/4120-76-0x0000000000400000-0x0000000000591000-memory.dmp upx behavioral2/memory/4120-93-0x0000000000400000-0x0000000000591000-memory.dmp upx behavioral2/memory/448-97-0x0000000000400000-0x0000000000591000-memory.dmp upx behavioral2/memory/4940-95-0x0000000000400000-0x0000000000591000-memory.dmp upx behavioral2/memory/632-114-0x0000000010000000-0x000000001003E000-memory.dmp upx behavioral2/memory/4940-125-0x0000000000400000-0x0000000000591000-memory.dmp upx behavioral2/memory/6000-185-0x0000000000400000-0x0000000000591000-memory.dmp upx behavioral2/memory/6000-199-0x0000000000400000-0x0000000000591000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\conhost.exe conhost.exe File created C:\Windows\conhost.exe 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe File opened for modification C:\Windows\conhost.exe 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.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 7 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 conhost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language conhost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language conhost.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 conhost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1004 cmd.exe 3588 PING.EXE -
Modifies data under HKEY_USERS 15 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "91" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" LogonUI.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent LogonUI.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3588 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 632 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe 632 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 4940 conhost.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4120 conhost.exe Token: SeLoadDriverPrivilege 4940 conhost.exe Token: 33 4940 conhost.exe Token: SeIncBasePriorityPrivilege 4940 conhost.exe Token: SeShutdownPrivilege 632 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 632 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe 632 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe 632 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe 5860 LogonUI.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 632 wrote to memory of 4120 632 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe 86 PID 632 wrote to memory of 4120 632 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe 86 PID 632 wrote to memory of 4120 632 170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe 86 PID 4120 wrote to memory of 1004 4120 conhost.exe 88 PID 4120 wrote to memory of 1004 4120 conhost.exe 88 PID 4120 wrote to memory of 1004 4120 conhost.exe 88 PID 448 wrote to memory of 4940 448 conhost.exe 89 PID 448 wrote to memory of 4940 448 conhost.exe 89 PID 448 wrote to memory of 4940 448 conhost.exe 89 PID 1004 wrote to memory of 3588 1004 cmd.exe 91 PID 1004 wrote to memory of 3588 1004 cmd.exe 91 PID 1004 wrote to memory of 3588 1004 cmd.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe"C:\Users\Admin\AppData\Local\Temp\170aa120564d75738a84d5ad050a93b3cf02af9bf8f06520f180ea8185a2be68.exe"1⤵
- Drops startup file
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:632 -
C:\Windows\conhost.exeC:\Windows\conhost.exe2⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4120 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Windows\conhost.exe > nul3⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1004 -
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:3588
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C:\Windows\conhost.exeC:\Windows\conhost.exe -auto1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:448 -
C:\Windows\conhost.exeC:\Windows\conhost.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:4940
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa39b3855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:5860
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C:\Windows\conhost.exeC:\Windows\conhost.exe -auto1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:6000
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
2.1MB
MD504869ada712c189caba4822be0e81ea5
SHA19c45486b30e6d3ccf0737c5766796baaf58232ab
SHA25623078015adb0cf53ebf632a895a1a224b3718174e6c2887e1bbb2d28be5e2b8b
SHA51216f98af15583c60da0cb947ea2230f759bfa27f86ef93ef5f7ffe2adcec6c5f115f52ffa74bae6cf8add94bb6a380fa276f391619256be7a45c53bb7421fdd9c
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Filesize
652KB
MD54f883e7d4d89a581845bc451d7f7a90c
SHA115dd39b9401b946330288a147437af3d9722bdf1
SHA2567c36b489a2fe329398415fd58a73c3b61f8127d4a4ebb002a64d604cfe2d7387
SHA51256e54e4e03f783fddad2b61ace38f7adfec5bcc0f591aeb9004c82eb674daaafc584037f057123789bafbfedc914d01a7d92af685b2239b232668a3ef2e1f61f