Analysis
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max time kernel
128s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
15-12-2024 09:38
Static task
static1
Behavioral task
behavioral1
Sample
01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.exe
Resource
win7-20240903-en
General
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Target
01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.exe
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Size
491KB
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MD5
e11f7015e74102c6a2abe27434e7b9d7
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SHA1
485652878fea0efaf7b843dac4707b0f34cb6b68
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SHA256
01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004
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SHA512
a2f2c47156077c9f8b9ecb63cd333e9254492babccd01315f138a6bb62efd1e8804990e452f187bea25cbde8dd183325c74205839a7705f0505682b78066b7f3
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SSDEEP
6144:GpoMkequERu8qQ1fjYMMW9eKZH+IdISTUL24qL9cPKcPzR2RS6lZv:oDR+u8pfjYMMWNvdhUSByFPzwv
Malware Config
Signatures
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resource yara_rule behavioral1/memory/1320-5-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/1320-3-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/1320-2-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/1320-6-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2804-16-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2804-15-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2932-27-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2804-26-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/1320-25-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2932-29-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 10 IoCs
resource yara_rule behavioral1/memory/1320-5-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/1320-3-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/1320-2-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/1320-6-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2804-16-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2804-15-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2932-27-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2804-26-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/1320-25-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2932-29-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat -
Gh0strat family
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Purplefox family
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Deletes itself 1 IoCs
pid Process 2756 cmd.exe -
Executes dropped EXE 2 IoCs
pid Process 2804 Skcsk.exe 2932 Skcsk.exe -
Loads dropped DLL 1 IoCs
pid Process 2804 Skcsk.exe -
resource yara_rule behavioral1/memory/1320-0-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/1320-5-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/1320-3-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/1320-2-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/1320-6-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2804-16-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2804-15-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2932-27-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2804-26-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/1320-25-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2932-29-0x0000000010000000-0x00000000101D0000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Skcsk.exe 01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.exe File opened for modification C:\Program Files\Skcsk.exe 01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.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 Skcsk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.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 Skcsk.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2756 cmd.exe 2816 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2816 PING.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1320 01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2804 wrote to memory of 2932 2804 Skcsk.exe 31 PID 2804 wrote to memory of 2932 2804 Skcsk.exe 31 PID 2804 wrote to memory of 2932 2804 Skcsk.exe 31 PID 2804 wrote to memory of 2932 2804 Skcsk.exe 31 PID 1320 wrote to memory of 2756 1320 01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.exe 32 PID 1320 wrote to memory of 2756 1320 01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.exe 32 PID 1320 wrote to memory of 2756 1320 01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.exe 32 PID 1320 wrote to memory of 2756 1320 01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.exe 32 PID 2756 wrote to memory of 2816 2756 cmd.exe 34 PID 2756 wrote to memory of 2816 2756 cmd.exe 34 PID 2756 wrote to memory of 2816 2756 cmd.exe 34 PID 2756 wrote to memory of 2816 2756 cmd.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.exe"C:\Users\Admin\AppData\Local\Temp\01bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1320 -
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\01BC8A~1.EXE > nul2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2756 -
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:2816
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C:\Program Files\Skcsk.exe"C:\\Program Files\\Skcsk.exe" -auto1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2804 -
C:\Program Files\Skcsk.exe"C:\Program Files\Skcsk.exe" -acsi2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2932
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
491KB
MD5e11f7015e74102c6a2abe27434e7b9d7
SHA1485652878fea0efaf7b843dac4707b0f34cb6b68
SHA25601bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004
SHA512a2f2c47156077c9f8b9ecb63cd333e9254492babccd01315f138a6bb62efd1e8804990e452f187bea25cbde8dd183325c74205839a7705f0505682b78066b7f3