Analysis
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max time kernel
140s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
15-12-2024 08:15
Behavioral task
behavioral1
Sample
20e134cef5baf4c883e4471e2c98976b.exe
Resource
win7-20240903-en
General
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Target
20e134cef5baf4c883e4471e2c98976b.exe
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Size
611KB
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MD5
20e134cef5baf4c883e4471e2c98976b
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SHA1
bb8a8eb0c5d5ae0dce8ca5b24257a12ca1783468
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SHA256
bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a
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SHA512
a8a4fad73071b5d7e81076deaaed38f33ed2b59571d14d0a6ed1b66713b31459fed0113c87258919575aea32970c7b30f0b82d709bde0569b0768b3ab97ac8aa
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SSDEEP
12288:/FpuzZSkcBNrl5mTEUkDaSdJfpSaoNRVBUyMCe8VMM80B7qrI3iK1XBwZQ:/FmShDrngEUkDaiJfpSaoNRpMCe8CM8T
Malware Config
Signatures
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resource yara_rule behavioral2/memory/1604-1-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit behavioral2/memory/4568-12-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit behavioral2/memory/1604-19-0x0000000000400000-0x0000000000585000-memory.dmp purplefox_rootkit behavioral2/memory/4568-27-0x0000000000400000-0x0000000000585000-memory.dmp purplefox_rootkit behavioral2/memory/4196-39-0x0000000000400000-0x0000000000585000-memory.dmp purplefox_rootkit behavioral2/memory/4004-62-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/4004-64-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/4004-63-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/936-72-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/936-74-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/936-75-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/936-73-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/1420-81-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit behavioral2/memory/1420-82-0x0000000010000000-0x00000000101D0000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 14 IoCs
resource yara_rule behavioral2/memory/1604-1-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat behavioral2/memory/4568-12-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat behavioral2/memory/1604-19-0x0000000000400000-0x0000000000585000-memory.dmp family_gh0strat behavioral2/memory/4568-27-0x0000000000400000-0x0000000000585000-memory.dmp family_gh0strat behavioral2/memory/4196-39-0x0000000000400000-0x0000000000585000-memory.dmp family_gh0strat behavioral2/memory/4004-62-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/4004-64-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/4004-63-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/936-72-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/936-74-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/936-75-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/936-73-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/1420-81-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat behavioral2/memory/1420-82-0x0000000010000000-0x00000000101D0000-memory.dmp family_gh0strat -
Gh0strat family
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Purplefox family
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Downloads MZ/PE file
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Drops file in Drivers directory 1 IoCs
description ioc Process File created C:\Windows\system32\drivers\QAssist.sys Mnfvn.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" Mnfvn.exe -
Executes dropped EXE 5 IoCs
pid Process 4568 Mnfvn.exe 4196 Mnfvn.exe 4004 svchot.exe 936 Skcsk.exe 1420 Skcsk.exe -
Enumerates connected drives 3 TTPs 44 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\G: Mnfvn.exe File opened (read-only) \??\I: Mnfvn.exe File opened (read-only) \??\B: Mnfvn.exe File opened (read-only) \??\N: Mnfvn.exe File opened (read-only) \??\G: Skcsk.exe File opened (read-only) \??\I: Skcsk.exe File opened (read-only) \??\K: Skcsk.exe File opened (read-only) \??\Q: Skcsk.exe File opened (read-only) \??\L: Mnfvn.exe File opened (read-only) \??\X: Mnfvn.exe File opened (read-only) \??\O: Skcsk.exe File opened (read-only) \??\Z: Skcsk.exe File opened (read-only) \??\O: Mnfvn.exe File opened (read-only) \??\J: Mnfvn.exe File opened (read-only) \??\M: Mnfvn.exe File opened (read-only) \??\U: Mnfvn.exe File opened (read-only) \??\W: Mnfvn.exe File opened (read-only) \??\M: Skcsk.exe File opened (read-only) \??\T: Skcsk.exe File opened (read-only) \??\U: Skcsk.exe File opened (read-only) \??\H: Mnfvn.exe File opened (read-only) \??\V: Skcsk.exe File opened (read-only) \??\Y: Mnfvn.exe File opened (read-only) \??\Z: Mnfvn.exe File opened (read-only) \??\H: Skcsk.exe File opened (read-only) \??\W: Skcsk.exe File opened (read-only) \??\Y: Skcsk.exe File opened (read-only) \??\V: Mnfvn.exe File opened (read-only) \??\S: Mnfvn.exe File opened (read-only) \??\T: Mnfvn.exe File opened (read-only) \??\B: Skcsk.exe File opened (read-only) \??\J: Skcsk.exe File opened (read-only) \??\L: Skcsk.exe File opened (read-only) \??\R: Mnfvn.exe File opened (read-only) \??\K: Mnfvn.exe File opened (read-only) \??\P: Mnfvn.exe File opened (read-only) \??\E: Skcsk.exe File opened (read-only) \??\N: Skcsk.exe File opened (read-only) \??\R: Skcsk.exe File opened (read-only) \??\X: Skcsk.exe File opened (read-only) \??\E: Mnfvn.exe File opened (read-only) \??\P: Skcsk.exe File opened (read-only) \??\S: Skcsk.exe File opened (read-only) \??\Q: Mnfvn.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\Mnfvn.exe 20e134cef5baf4c883e4471e2c98976b.exe File opened for modification C:\Windows\SysWOW64\Mnfvn.exe 20e134cef5baf4c883e4471e2c98976b.exe -
resource yara_rule behavioral2/memory/1604-0-0x0000000000400000-0x0000000000585000-memory.dmp upx behavioral2/files/0x000c000000023b2e-9.dat upx behavioral2/memory/1604-19-0x0000000000400000-0x0000000000585000-memory.dmp upx behavioral2/memory/4568-27-0x0000000000400000-0x0000000000585000-memory.dmp upx behavioral2/memory/4196-39-0x0000000000400000-0x0000000000585000-memory.dmp upx behavioral2/memory/4004-62-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/4004-64-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/4004-60-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/4004-63-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/936-72-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/936-74-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/936-75-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/936-70-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/936-73-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/1420-81-0x0000000010000000-0x00000000101D0000-memory.dmp upx behavioral2/memory/1420-82-0x0000000010000000-0x00000000101D0000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Skcsk.exe svchot.exe File opened for modification C:\Program Files\Skcsk.exe svchot.exe -
System Location Discovery: System Language Discovery 1 TTPs 10 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 Mnfvn.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchot.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 20e134cef5baf4c883e4471e2c98976b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Mnfvn.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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Skcsk.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 4 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2592 cmd.exe 3500 PING.EXE 1932 cmd.exe 1700 PING.EXE -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Mnfvn.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz Mnfvn.exe 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 13 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" Mnfvn.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix Mnfvn.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" Mnfvn.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum Mnfvn.exe Key created \REGISTRY\USER\.DEFAULT\Software Mnfvn.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" Mnfvn.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" Mnfvn.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" Mnfvn.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" Mnfvn.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft Mnfvn.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie Mnfvn.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7" Mnfvn.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ Mnfvn.exe -
Runs ping.exe 1 TTPs 2 IoCs
pid Process 3500 PING.EXE 1700 PING.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe 4196 Mnfvn.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 4196 Mnfvn.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1604 20e134cef5baf4c883e4471e2c98976b.exe Token: SeLoadDriverPrivilege 4196 Mnfvn.exe Token: 33 4196 Mnfvn.exe Token: SeIncBasePriorityPrivilege 4196 Mnfvn.exe Token: 33 4196 Mnfvn.exe Token: SeIncBasePriorityPrivilege 4196 Mnfvn.exe Token: SeIncBasePriorityPrivilege 4004 svchot.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1604 wrote to memory of 2592 1604 20e134cef5baf4c883e4471e2c98976b.exe 84 PID 1604 wrote to memory of 2592 1604 20e134cef5baf4c883e4471e2c98976b.exe 84 PID 1604 wrote to memory of 2592 1604 20e134cef5baf4c883e4471e2c98976b.exe 84 PID 4568 wrote to memory of 4196 4568 Mnfvn.exe 85 PID 4568 wrote to memory of 4196 4568 Mnfvn.exe 85 PID 4568 wrote to memory of 4196 4568 Mnfvn.exe 85 PID 2592 wrote to memory of 3500 2592 cmd.exe 87 PID 2592 wrote to memory of 3500 2592 cmd.exe 87 PID 2592 wrote to memory of 3500 2592 cmd.exe 87 PID 4196 wrote to memory of 4004 4196 Mnfvn.exe 104 PID 4196 wrote to memory of 4004 4196 Mnfvn.exe 104 PID 4196 wrote to memory of 4004 4196 Mnfvn.exe 104 PID 4004 wrote to memory of 1932 4004 svchot.exe 106 PID 4004 wrote to memory of 1932 4004 svchot.exe 106 PID 4004 wrote to memory of 1932 4004 svchot.exe 106 PID 936 wrote to memory of 1420 936 Skcsk.exe 107 PID 936 wrote to memory of 1420 936 Skcsk.exe 107 PID 936 wrote to memory of 1420 936 Skcsk.exe 107 PID 1932 wrote to memory of 1700 1932 cmd.exe 109 PID 1932 wrote to memory of 1700 1932 cmd.exe 109 PID 1932 wrote to memory of 1700 1932 cmd.exe 109
Processes
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C:\Users\Admin\AppData\Local\Temp\20e134cef5baf4c883e4471e2c98976b.exe"C:\Users\Admin\AppData\Local\Temp\20e134cef5baf4c883e4471e2c98976b.exe"1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1604 -
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\20E134~1.EXE > nul2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2592 -
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:3500
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C:\Windows\SysWOW64\Mnfvn.exeC:\Windows\SysWOW64\Mnfvn.exe -auto1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4568 -
C:\Windows\SysWOW64\Mnfvn.exeC:\Windows\SysWOW64\Mnfvn.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- 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
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4196 -
C:\Users\Admin\AppData\Local\Temp\svchot.exeC:\Users\Admin\AppData\Local\Temp\svchot.exe3⤵
- Executes dropped EXE
- 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\svchot.exe > nul4⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1932 -
C:\Windows\SysWOW64\PING.EXEping -n 2 127.0.0.15⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1700
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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:936 -
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
PID:1420
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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
491KB
MD5e11f7015e74102c6a2abe27434e7b9d7
SHA1485652878fea0efaf7b843dac4707b0f34cb6b68
SHA25601bc8af53338ddf735e744e947c659477b275854a25d3a64edf4fa092b4a5004
SHA512a2f2c47156077c9f8b9ecb63cd333e9254492babccd01315f138a6bb62efd1e8804990e452f187bea25cbde8dd183325c74205839a7705f0505682b78066b7f3
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Filesize
611KB
MD520e134cef5baf4c883e4471e2c98976b
SHA1bb8a8eb0c5d5ae0dce8ca5b24257a12ca1783468
SHA256bef42fdae71eff14767b54c660a42d7ab6fedf56ce74f8faa304a0e1b526fe4a
SHA512a8a4fad73071b5d7e81076deaaed38f33ed2b59571d14d0a6ed1b66713b31459fed0113c87258919575aea32970c7b30f0b82d709bde0569b0768b3ab97ac8aa