Analysis
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max time kernel
127s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
07-12-2024 11:13
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.exe
Resource
win7-20240903-en
windows7-x64
20 signatures
150 seconds
General
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Target
d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.exe
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Size
491KB
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MD5
4d02d507c92aa0b0a7ad9b8c215bb41c
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SHA1
2a5b27d0c34db285565ca07816f2912fe3db24ff
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SHA256
d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004
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SHA512
e2d6783d1423351581f243e1018825970d48345043a19ba5c88322824847e37453364f685b7b55de41d3e50bc7408b79c496781e19965f878401246b5d0d46c0
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SSDEEP
6144:GpoMkequERu8qQ1fjYMMW9eKZH+IdISTUL24qL9cPKcPzR2RG6lZv:oDR+u8pfjYMMWNvdhUSByFPz8v
Malware Config
Signatures
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resource yara_rule behavioral1/memory/2324-3-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2324-6-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2324-5-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2324-4-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2000-16-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2000-14-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2000-22-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2444-25-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2444-27-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral1/memory/2444-31-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 10 IoCs
resource yara_rule behavioral1/memory/2324-3-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2324-6-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2324-5-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2324-4-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2000-16-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2000-14-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2000-22-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2444-25-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2444-27-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral1/memory/2444-31-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat -
Gh0strat family
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Purplefox family
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Deletes itself 1 IoCs
pid Process 2876 cmd.exe -
Executes dropped EXE 2 IoCs
pid Process 2000 Skcsk.exe 2444 Skcsk.exe -
Loads dropped DLL 1 IoCs
pid Process 2000 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) \??\W: Skcsk.exe File opened (read-only) \??\Y: Skcsk.exe File opened (read-only) \??\H: Skcsk.exe File opened (read-only) \??\O: Skcsk.exe File opened (read-only) \??\R: Skcsk.exe File opened (read-only) \??\V: Skcsk.exe File opened (read-only) \??\E: Skcsk.exe File opened (read-only) \??\G: Skcsk.exe File opened (read-only) \??\L: Skcsk.exe File opened (read-only) \??\M: Skcsk.exe File opened (read-only) \??\P: Skcsk.exe File opened (read-only) \??\Q: Skcsk.exe File opened (read-only) \??\U: Skcsk.exe File opened (read-only) \??\X: Skcsk.exe File opened (read-only) \??\B: Skcsk.exe File opened (read-only) \??\J: Skcsk.exe File opened (read-only) \??\Z: Skcsk.exe File opened (read-only) \??\N: Skcsk.exe File opened (read-only) \??\S: Skcsk.exe File opened (read-only) \??\T: Skcsk.exe File opened (read-only) \??\I: Skcsk.exe File opened (read-only) \??\K: Skcsk.exe -
resource yara_rule behavioral1/memory/2324-0-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2324-3-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2324-6-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2324-5-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2324-4-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2000-16-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2000-14-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2000-22-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2444-25-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2444-27-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral1/memory/2444-31-0x0000000010000000-0x00000000101D0000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Skcsk.exe d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.exe File opened for modification C:\Program Files\Skcsk.exe d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.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 PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Skcsk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Skcsk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2816 PING.EXE 2876 cmd.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 6 IoCs
description ioc Process 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 Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie Skcsk.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum Skcsk.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 2816 PING.EXE -
Suspicious behavior: EnumeratesProcesses 33 IoCs
pid Process 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe 2444 Skcsk.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2324 d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2324 wrote to memory of 2876 2324 d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.exe 32 PID 2324 wrote to memory of 2876 2324 d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.exe 32 PID 2324 wrote to memory of 2876 2324 d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.exe 32 PID 2324 wrote to memory of 2876 2324 d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.exe 32 PID 2000 wrote to memory of 2444 2000 Skcsk.exe 33 PID 2000 wrote to memory of 2444 2000 Skcsk.exe 33 PID 2000 wrote to memory of 2444 2000 Skcsk.exe 33 PID 2000 wrote to memory of 2444 2000 Skcsk.exe 33 PID 2876 wrote to memory of 2816 2876 cmd.exe 35 PID 2876 wrote to memory of 2816 2876 cmd.exe 35 PID 2876 wrote to memory of 2816 2876 cmd.exe 35 PID 2876 wrote to memory of 2816 2876 cmd.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.exe"C:\Users\Admin\AppData\Local\Temp\d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2324 -
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\D2A9A3~1.EXE > nul2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2876 -
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:2000 -
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:2444
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
491KB
MD54d02d507c92aa0b0a7ad9b8c215bb41c
SHA12a5b27d0c34db285565ca07816f2912fe3db24ff
SHA256d2a9a39d84763ffc0b0c57dcfaafe7439a50902e307107dc2a70354d04559004
SHA512e2d6783d1423351581f243e1018825970d48345043a19ba5c88322824847e37453364f685b7b55de41d3e50bc7408b79c496781e19965f878401246b5d0d46c0