Analysis
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max time kernel
128s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11-12-2024 18:42
Static task
static1
Behavioral task
behavioral1
Sample
1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8.exe
Resource
win7-20240903-en
General
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Target
1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8.exe
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Size
491KB
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MD5
8e58d477356f3f151e1a89f7b8c6d727
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SHA1
5218fb9e3a6862a5fb8b82e3366c34d487215a25
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SHA256
1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8
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SHA512
4af078a3b87678700c2286994bf7deff7e239dd7a8e66993d315e44f77895ec1ce8c69f4dfbee9a5444a9965e1f794dec5372db0a69a8ba853b923626adc6c54
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SSDEEP
6144:GpoMkequERu8qQ1fjYMMW9eKZH+IdISTUL24qL9cPKcPzR2RU6lZv:oDR+u8pfjYMMWNvdhUSByFPz+v
Malware Config
Signatures
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resource yara_rule behavioral2/memory/4004-2-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/4004-3-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/4004-5-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/1592-13-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/1592-14-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/1592-16-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/4004-21-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/1592-25-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/4516-27-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/4516-26-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/4516-31-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 11 IoCs
resource yara_rule behavioral2/memory/4004-2-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/4004-3-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/4004-5-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/1592-13-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/1592-14-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/1592-16-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/4004-21-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/1592-25-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/4516-27-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/4516-26-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/4516-31-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat -
Gh0strat family
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Purplefox family
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Executes dropped EXE 2 IoCs
pid Process 1592 Skcsk.exe 4516 Skcsk.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) \??\Y: Skcsk.exe File opened (read-only) \??\B: Skcsk.exe File opened (read-only) \??\I: Skcsk.exe File opened (read-only) \??\M: Skcsk.exe File opened (read-only) \??\S: Skcsk.exe File opened (read-only) \??\W: Skcsk.exe File opened (read-only) \??\V: Skcsk.exe File opened (read-only) \??\X: Skcsk.exe File opened (read-only) \??\G: Skcsk.exe File opened (read-only) \??\H: Skcsk.exe File opened (read-only) \??\O: Skcsk.exe File opened (read-only) \??\P: Skcsk.exe File opened (read-only) \??\Q: Skcsk.exe File opened (read-only) \??\Z: Skcsk.exe File opened (read-only) \??\E: Skcsk.exe File opened (read-only) \??\K: Skcsk.exe File opened (read-only) \??\L: Skcsk.exe File opened (read-only) \??\T: Skcsk.exe File opened (read-only) \??\U: Skcsk.exe File opened (read-only) \??\J: Skcsk.exe File opened (read-only) \??\N: Skcsk.exe File opened (read-only) \??\R: Skcsk.exe -
resource yara_rule behavioral2/memory/4004-2-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/4004-3-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/4004-5-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/4004-0-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/1592-13-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/1592-14-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/1592-16-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/1592-12-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/4004-21-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/1592-25-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/4516-27-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/4516-26-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/4516-31-0x0000000010000000-0x00000000101D0000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Skcsk.exe 1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8.exe File opened for modification C:\Program Files\Skcsk.exe 1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8.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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Skcsk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8.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 3732 cmd.exe 2280 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 Skcsk.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz Skcsk.exe -
Modifies data under HKEY_USERS 5 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie Skcsk.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7" Skcsk.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum Skcsk.exe Key created \REGISTRY\USER\.DEFAULT\Software Skcsk.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft Skcsk.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2280 PING.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe 4516 Skcsk.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4004 1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4004 wrote to memory of 3732 4004 1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8.exe 84 PID 4004 wrote to memory of 3732 4004 1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8.exe 84 PID 4004 wrote to memory of 3732 4004 1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8.exe 84 PID 1592 wrote to memory of 4516 1592 Skcsk.exe 85 PID 1592 wrote to memory of 4516 1592 Skcsk.exe 85 PID 1592 wrote to memory of 4516 1592 Skcsk.exe 85 PID 3732 wrote to memory of 2280 3732 cmd.exe 87 PID 3732 wrote to memory of 2280 3732 cmd.exe 87 PID 3732 wrote to memory of 2280 3732 cmd.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8.exe"C:\Users\Admin\AppData\Local\Temp\1418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4004 -
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\1418BD~1.EXE > nul2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3732 -
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:2280
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C:\Program Files\Skcsk.exe"C:\\Program Files\\Skcsk.exe" -auto1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1592 -
C:\Program Files\Skcsk.exe"C:\Program Files\Skcsk.exe" -acsi2⤵
- 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
PID:4516
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
491KB
MD58e58d477356f3f151e1a89f7b8c6d727
SHA15218fb9e3a6862a5fb8b82e3366c34d487215a25
SHA2561418bdd8e40e203b71684a9b549be5b2106552a07ede9b0b997012cb7831a9f8
SHA5124af078a3b87678700c2286994bf7deff7e239dd7a8e66993d315e44f77895ec1ce8c69f4dfbee9a5444a9965e1f794dec5372db0a69a8ba853b923626adc6c54