Analysis
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max time kernel
145s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
14-01-2025 16:58
Behavioral task
behavioral1
Sample
712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe
Resource
win7-20240729-en
General
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Target
712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe
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Size
539KB
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MD5
684cde79fb89775b4d4687381206503b
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SHA1
d3f436fbb2e22e05e6ba8142c4d024456c71e48b
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SHA256
712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2
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SHA512
0a69a356e0a816e14b9c6942b51e989383dfd0186edc2877b8dc8d0e012d9179c06b19c03413c7acbf7735c3cc50812811b0b522b69bf21c893786563bf05979
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SSDEEP
12288:+hymnwJFPNdgBAEHApqePJN1AmLM7uVq9sSX:+Umwrl2Ao7sJNlM7ymsS
Malware Config
Signatures
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resource yara_rule behavioral1/memory/2732-1-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit behavioral1/memory/2732-18-0x0000000000400000-0x0000000000547000-memory.dmp purplefox_rootkit behavioral1/memory/2608-25-0x0000000000400000-0x0000000000547000-memory.dmp purplefox_rootkit behavioral1/memory/2724-29-0x0000000000400000-0x0000000000547000-memory.dmp purplefox_rootkit behavioral1/memory/2608-39-0x0000000000400000-0x0000000000547000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 5 IoCs
resource yara_rule behavioral1/memory/2732-1-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat behavioral1/memory/2732-18-0x0000000000400000-0x0000000000547000-memory.dmp family_gh0strat behavioral1/memory/2608-25-0x0000000000400000-0x0000000000547000-memory.dmp family_gh0strat behavioral1/memory/2724-29-0x0000000000400000-0x0000000000547000-memory.dmp family_gh0strat behavioral1/memory/2608-39-0x0000000000400000-0x0000000000547000-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 Meume.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" Meume.exe -
Deletes itself 1 IoCs
pid Process 2736 cmd.exe -
Executes dropped EXE 2 IoCs
pid Process 2724 Meume.exe 2608 Meume.exe -
Loads dropped DLL 1 IoCs
pid Process 2724 Meume.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\Meume.exe 712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe File opened for modification C:\Windows\SysWOW64\Meume.exe 712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe -
resource yara_rule behavioral1/memory/2732-0-0x0000000000400000-0x0000000000547000-memory.dmp upx behavioral1/files/0x00070000000120fb-9.dat upx behavioral1/memory/2732-18-0x0000000000400000-0x0000000000547000-memory.dmp upx behavioral1/memory/2608-25-0x0000000000400000-0x0000000000547000-memory.dmp upx behavioral1/memory/2724-29-0x0000000000400000-0x0000000000547000-memory.dmp upx behavioral1/memory/2608-39-0x0000000000400000-0x0000000000547000-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 712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Meume.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Meume.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 2736 cmd.exe 3016 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3016 PING.EXE -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 2608 Meume.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2732 712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe Token: SeLoadDriverPrivilege 2608 Meume.exe Token: 33 2608 Meume.exe Token: SeIncBasePriorityPrivilege 2608 Meume.exe Token: 33 2608 Meume.exe Token: SeIncBasePriorityPrivilege 2608 Meume.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2732 wrote to memory of 2736 2732 712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe 31 PID 2732 wrote to memory of 2736 2732 712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe 31 PID 2732 wrote to memory of 2736 2732 712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe 31 PID 2732 wrote to memory of 2736 2732 712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe 31 PID 2724 wrote to memory of 2608 2724 Meume.exe 32 PID 2724 wrote to memory of 2608 2724 Meume.exe 32 PID 2724 wrote to memory of 2608 2724 Meume.exe 32 PID 2724 wrote to memory of 2608 2724 Meume.exe 32 PID 2736 wrote to memory of 3016 2736 cmd.exe 34 PID 2736 wrote to memory of 3016 2736 cmd.exe 34 PID 2736 wrote to memory of 3016 2736 cmd.exe 34 PID 2736 wrote to memory of 3016 2736 cmd.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe"C:\Users\Admin\AppData\Local\Temp\712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2.exe"1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2732 -
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\712E27~1.EXE > nul2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2736 -
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:3016
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C:\Windows\SysWOW64\Meume.exeC:\Windows\SysWOW64\Meume.exe -auto1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2724 -
C:\Windows\SysWOW64\Meume.exeC:\Windows\SysWOW64\Meume.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:2608
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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
539KB
MD5684cde79fb89775b4d4687381206503b
SHA1d3f436fbb2e22e05e6ba8142c4d024456c71e48b
SHA256712e2738590085a6d437f93799d422fb8498ab2ddae5769db3fbca77e32076b2
SHA5120a69a356e0a816e14b9c6942b51e989383dfd0186edc2877b8dc8d0e012d9179c06b19c03413c7acbf7735c3cc50812811b0b522b69bf21c893786563bf05979